diff --git a/admin/api/exercice.go b/admin/api/exercice.go
index a1ab5153..d7c7ebd6 100644
--- a/admin/api/exercice.go
+++ b/admin/api/exercice.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"strings"
+	"time"
 
 	"srs.epita.fr/fic-server/admin/sync"
 	"srs.epita.fr/fic-server/libfic"
@@ -14,12 +15,17 @@ import (
 
 func init() {
 	router.GET("/api/exercices/", apiHandler(listExercices))
+	router.GET("/api/resolutions.json", apiHandler(exportResolutionMovies))
 
 	router.GET("/api/exercices/:eid", apiHandler(exerciceHandler(showExercice)))
 	router.PUT("/api/exercices/:eid", apiHandler(exerciceHandler(updateExercice)))
 	router.PATCH("/api/exercices/:eid", apiHandler(exerciceHandler(partUpdateExercice)))
 	router.DELETE("/api/exercices/:eid", apiHandler(exerciceHandler(deleteExercice)))
 
+	router.GET("/api/exercices/:eid/stats", apiHandler(exerciceHandler(getExerciceStats)))
+	router.GET("/api/exercices/:eid/history.json", apiHandler(exerciceHandler(getExerciceHistory)))
+	router.DELETE("/api/exercices/:eid/history.json", apiHandler(exerciceHandler(delExerciceHistory)))
+
 	router.GET("/api/exercices/:eid/files", apiHandler(exerciceHandler(listExerciceFiles)))
 	router.POST("/api/exercices/:eid/files", apiHandler(exerciceHandler(createExerciceFile)))
 	router.GET("/api/exercices/:eid/files/:fid", apiHandler(exerciceFileHandler(showExerciceFile)))
@@ -85,6 +91,28 @@ func listExercices(_ httprouter.Params, body []byte) (interface{}, error) {
 	return fic.GetExercices()
 }
 
+// Generate the csv to export with:
+//   curl -s http://127.0.0.1:8081/api/resolutions.json | jq -r ".[] | [ .theme,.title, @uri \"https://fic.srs.epita.fr/resolution/\\(.videoURI)\" ] | join(\";\")"
+func exportResolutionMovies(_ httprouter.Params, body []byte) (interface{}, error) {
+	if exercices, err := fic.GetExercices(); err != nil {
+		return nil, err
+	} else {
+		export := []map[string]string{}
+		for _, exercice := range exercices {
+			if theme, err := fic.GetTheme(exercice.IdTheme); err != nil {
+				return nil, err
+			} else {
+				export = append(export, map[string]string{
+					"videoURI": exercice.VideoURI,
+					"theme": theme.Name,
+					"title": exercice.Title,
+				})
+			}
+		}
+		return export, nil
+	}
+}
+
 func listExerciceFiles(exercice fic.Exercice, body []byte) (interface{}, error) {
 	return exercice.GetFiles()
 }
@@ -109,6 +137,35 @@ func showExercice(exercice fic.Exercice, body []byte) (interface{}, error) {
 	return exercice, nil
 }
 
+func getExerciceStats(exercice fic.Exercice, body []byte) (interface{}, error) {
+	team_tries, tries := exercice.TriesByTeam()
+	return map[string]interface{}{
+		"solved": exercice.SolvedTeams(),
+		"total_tried": tries,
+		"team_tries": team_tries,
+	}, nil
+}
+
+func getExerciceHistory(exercice fic.Exercice, body []byte) (interface{}, error) {
+	return exercice.GetHistory()
+}
+
+type uploadedExerciceHistory struct {
+	IdTeam    int64     `json:"team_id"`
+	Kind      string
+	Time      time.Time
+	Secondary *int64
+}
+
+func delExerciceHistory(exercice fic.Exercice, body []byte) (interface{}, error) {
+	var uh uploadedExerciceHistory
+	if err := json.Unmarshal(body, &uh); err != nil {
+		return nil, err
+	}
+
+	return exercice.DelHistoryItem(uh.IdTeam, uh.Kind, uh.Time, uh.Secondary)
+}
+
 func deleteExercice(exercice fic.Exercice, _ []byte) (interface{}, error) {
 	return exercice.Delete()
 }
diff --git a/admin/api/team.go b/admin/api/team.go
index dcffb055..8c32692d 100644
--- a/admin/api/team.go
+++ b/admin/api/team.go
@@ -238,10 +238,27 @@ func setTeamMember(team fic.Team, body []byte) (interface{}, error) {
 }
 
 type uploadedHistory struct {
-	Kind      string
-	Time      time.Time
-	Primary   *int64
-	Secondary *int64
+	Kind        string
+	Time        time.Time
+	Primary     *int64
+	Secondary   *int64
+	Coefficient float32
+}
+
+func updateHistory(team *fic.Team, body []byte) (interface{}, error) {
+	var uh uploadedHistory
+	if err := json.Unmarshal(body, &uh); err != nil {
+		return nil, err
+	}
+
+	var givenId int64
+	if uh.Secondary != nil {
+		givenId = *uh.Secondary
+	} else if uh.Primary != nil {
+		givenId = *uh.Primary
+	}
+
+	return team.UpdateHistoryCoeff(uh.Kind, uh.Time, givenId, uh.Coefficient)
 }
 
 func delHistory(team *fic.Team, body []byte) (interface{}, error) {
diff --git a/admin/fill_exercices.sh b/admin/fill_exercices.sh
deleted file mode 100755
index e2ce2141..00000000
--- a/admin/fill_exercices.sh
+++ /dev/null
@@ -1,262 +0,0 @@
-#!/bin/bash
-
-BASEURL="http://localhost:8081"
-BASEURI="https://owncloud.srs.epita.fr/remote.php/webdav/FIC 2018"
-BASEFILE="/mnt/fic/"
-CLOUDPASS="$CLOUD_USER:$CLOUD_PASS"
-
-new_theme() {
-    NAME=`echo $1 | sed 's/"/\\\\"/g'`
-    AUTHORS=`echo $2 | sed 's/"/\\\\"/g'`
-    curl -f -s -d "{\"name\": \"$NAME\", \"authors\": \"$AUTHORS\"}" "${BASEURL}/api/themes" |
-	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
-}
-
-new_exercice() {
-    THEME="$1"
-    TITLE=`echo "$2" | sed 's/"/\\\\"/g'`
-    STATEMENT=`echo "$3" | sed 's/"/\\\\"/g' | sed ':a;N;$!ba;s/\n/<br>/g'`
-    DEPEND="$4"
-    GAIN="$5"
-    VIDEO="$6"
-
-    curl -f -s -d "{\"title\": \"$TITLE\", \"statement\": \"$STATEMENT\", \"depend\": $DEPEND, \"gain\": $GAIN, \"videoURI\": \"$VIDEO\"}" "${BASEURL}/api/themes/$THEME/exercices" |
-	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
-}
-
-new_file() (
-    THEME="$1"
-    EXERCICE="$2"
-    URI="$3"
-    DIGEST="$4"
-    ARGS="$5"
-
-    FIRST=
-    PARTS=$(echo "$ARGS" | while read arg
-    do
-	[ -n "$arg" ] && {
-	    [ -z "${FIRST}" ] || echo -n ","
-	    echo "\"$arg\""
-	}
-	FIRST=1
-    done)
-
-    [ -n "${DIGEST}" ] && DIGEST=", \"digest\": \"${DIGEST}\""
-
-    cat <<EOF >&2
-{"path": "${BASEFILE}${URI}"${DIGEST}, "parts": [${PARTS}]}
-EOF
-
-#    curl -f -s -d "{\"URI\": \"${BASEFILE}${URI}\"}" "${BASEURL}/api/themes/$THEME/$EXERCICE/files" |
-    curl -f -s -d @- "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/files" <<EOF | grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
-{"path": "${BASEFILE}${URI}"${DIGEST}, "parts": [${PARTS}]}
-EOF
-)
-
-new_hint() {
-    THEME="$1"
-    EXERCICE="$2"
-    TITLE=`echo "$3" | sed 's/"/\\\\"/g'`
-    CONTENT=`echo "$4" | sed 's/"/\\\\"/g' | sed ':a;N;$!ba;s/\n/<br>/g'`
-    COST="$5"
-    URI="$6"
-
-    [ -n "${CONTENT}" ] && CONTENT=", \"content\": \"${CONTENT}\""
-    [ -n "${URI}" ] && URI=", \"path\": \"${BASEFILE}${URI}\""
-
-    curl -f -s -d "{\"title\": \"$TITLE\"$CONTENT$URI, \"cost\": $COST}" "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/hints" |
-	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
-}
-
-new_key() {
-    THEME="$1"
-    EXERCICE="$2"
-    TYPE="$3"
-    KEY=`echo $4 | sed 's#\\\\#\\\\\\\\#g' | sed 's/"/\\\\"/g'`
-
-    curl -f -s -d "{\"type\": \"$TYPE\", \"key\": \"$KEY\"}" "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/keys" |
-	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
-}
-
-get_dir_from_cloud() {
-    curl -f -s -X PROPFIND -u "${CLOUDPASS}" "${BASEURI}$1" | xmllint --format - | grep 'd:href' | sed -E 's/^.*>(.*)<.*$/\1/'
-}
-get_dir() {
-    ls "${BASEFILE}$1" 2> /dev/null
-}
-#alias get_dir=get_dir_from_cloud
-
-get_file_from_cloud() {
-    curl -f -s -u "${CLOUDPASS}" "${BASEURI}$1" | tr -d '\r'
-}
-get_file() {
-    cat "${BASEFILE}$1" 2> /dev/null | tr -d '\r'
-    echo
-}
-#alias get_file=get_file_from_cloud
-
-unhtmlentities() {
-    cat | sed -E 's/%20/ /g' | sed -E "s/%27/'/g" | sed -E 's/%c3%a9/é/g' | sed -E 's/%c3%a8/è/g'
-}
-
-# Theme
-{
-    if [ $# -ge 1 ]; then
-	echo $1
-    else
-	get_dir ""
-    fi
-} | while read f; do basename "$f"; done | while read THEME_URI
-do
-    THM_BASEURI="/${THEME_URI}/"
-    THEME_NAME=$(echo "${THEME_URI#*-}" | unhtmlentities)
-    THEME_AUTHORS=$(get_file "${THM_BASEURI}/AUTHORS.txt" | sed '/^$/d;s/$/, /' | tr -d '\n' | sed 's/, $//')
-    THEME_ID=`new_theme "$THEME_NAME" "$THEME_AUTHORS"`
-    if [ -z "$THEME_ID" ]; then
-        echo -e "\e[31;01m!!! An error occured during theme add\e[00m"
-        continue
-    else
-        echo -e "\e[33m>>> New theme created:\e[00m $THEME_ID - $THEME_NAME"
-    fi
-
-    LAST=null
-    EXO_NUM=0
-    {
-	if [ $# -ge 2 ]; then
-	    echo "$2"
-	else
-	    get_dir "${THM_BASEURI}"
-	fi
-    } | while read f; do basename "$f"; done | while read EXO_URI
-    do
-	case ${EXO_URI} in
-	    [0-9]-*)
-	    ;;
-	    *)
-		continue;;
-	esac
-
-	#EXO_NUM=$((EXO_NUM + 1))
-	EXO_NUM=${EXO_URI%-*}
-	EXO_NAME=$(echo "${EXO_URI#*-}" | unhtmlentities)
-	echo
-	echo -e "\e[36m--- Filling exercice ${EXO_NUM} in theme ${THEME_NAME}\e[00m"
-
-	EXO_BASEURI="${EXO_URI}/"
-
-	EXO_VIDEO=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/resolution/" | grep -E "\.(mov|mkv|mp4|avi|flv|ogv|webm)$" | while read f; do basename "$f"; done | tail -1)
-	[ -n "$EXO_VIDEO" ] && EXO_VIDEO="/resolution${THM_BASEURI}${EXO_BASEURI}resolution/${EXO_VIDEO}"
-
-	if [ "${LAST}" = "null" ]; then
-	    echo ">>> Assuming this exercice has no dependency"
-	else
-	    echo ">>> Assuming this exercice depends on the last entry (id=${LAST})"
-	fi
-
-	EXO_GAIN=$((3 * (2 ** $EXO_NUM) - 1))
-	HINT_COST=$(($EXO_GAIN / 4))
-	echo ">>> Using default gain: ${EXO_GAIN} points"
-
-	EXO_SCENARIO=$(get_file "${THM_BASEURI}${EXO_BASEURI}/scenario.txt")
-
-	EXO_ID=`new_exercice "${THEME_ID}" "${EXO_NAME}" "${EXO_SCENARIO}" "${LAST}" "${EXO_GAIN}" "${EXO_VIDEO}"`
-	if [ -z "$EXO_ID" ]; then
-	    echo -e "\e[31;01m!!! An error occured during exercice add.\e[00m"
-	    continue
-	else
-	    echo -e "\e[32m>>> New exercice created:\e[00m $EXO_ID - $EXO_NAME"
-        fi
-
-
-	# Keys
-	get_file "${THM_BASEURI}${EXO_BASEURI}/flags.txt" | while read KEYLINE
-	do
-	    [ -z "${KEYLINE}" ] && continue
-
-	    KEY_NAME=$(echo "$KEYLINE" | cut -d$'\t' -f 1)
-	    KEY_RAW=$(echo "$KEYLINE" | cut -d$'\t' -f 2-)
-
-	    if [ -z "${KEY_RAW}" ] || [ "${KEY_NAME}" = "${KEY_RAW}" ]; then
-		KEY_NAME=$(echo "$KEYLINE" | cut -d : -f 1)
-		KEY_RAW=$(echo "$KEYLINE" | cut -d : -f 2-)
-	    fi
-
-	    if [ -z "${KEY_NAME}" ]; then
-		KEY_NAME="Flag"
-	    fi
-
-	    KEY_ID=`new_key "${THEME_ID}" "${EXO_ID}" "${KEY_NAME}" "${KEY_RAW}"`
-	    if [ -z "$KEY_ID" ]; then
-	        echo -e "\e[31;01m!!! An error occured during key import!\e[00m (name=${KEYNAME};raw=${KEY_RAW})"
-	    else
-	        echo -e "\e[32m>>> New key added:\e[00m $KEY_ID - $KEY_NAME"
-	    fi
-	done
-
-
-	# Hints
-	HINTS=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/hints/" | sed -E 's#(.*)#hints/\1#')
-	[ -z "${HINTS}" ] && HINTS=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/" | grep ^hint.)
-	[ -z "${HINTS}" ] && HINTS="hint.txt"
-	HINT_COUNT=1
-	echo "${HINTS}" | while read HINT
-	do
-	    EXO_HINT=$(get_file "${THM_BASEURI}${EXO_BASEURI}/${HINT}")
-	    if [ -n "$EXO_HINT" ]; then
-		EXO_HINT_TYPE=$(echo "${EXO_HINT}" | file --mime-type -b -)
-		if echo "${EXO_HINT_TYPE}" | grep text/ && [ $(echo "${EXO_HINT}" | wc -l) -lt 25 ]; then
-		    HINT_ID=`new_hint "${THEME_ID}" "${EXO_ID}" "Astuce #${HINT_COUNT}" "${EXO_HINT}" "${HINT_COST}"`
-		else
-		    HINT_ID=`new_hint "${THEME_ID}" "${EXO_ID}" "Astuce #${HINT_COUNT}" "" "${HINT_COST}" "${THM_BASEURI}${EXO_BASEURI}/${HINT}"`
-		fi
-
-		if [ -z "$HINT_ID" ]; then
-		    echo -e "\e[31;01m!!! An error occured during hint import!\e[00m (title=Astuce #${HINT_COUNT};content::${EXO_HINT_TYPE};cost=${HINT_COST})"
-		else
-		    echo -e "\e[32m>>> New hint added:\e[00m $HINT_ID - Astuce #${HINT_COUNT}"
-		fi
-	    fi
-	    HINT_COUNT=$(($HINT_COUNT + 1))
-	done
-
-
-	# Files: splited
-	get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep -v DIGESTS.txt | grep '[0-9][0-9]$' | sed -E 's/\.?([0-9][0-9])$//' | sort | uniq | while read f; do basename "$f"; done | while read FILE_URI
-	do
-	    DIGEST=$(get_file "${THM_BASEURI}${EXO_BASEURI}files/DIGESTS.txt" | grep "${FILE_URI}\$" | awk '{ print $1; }')
-
-	    PARTS=
-	    for part in $(get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep "${FILE_URI}" | sort)
-	    do
-		PARTS="${PARTS}${BASEFILE}${THM_BASEURI}${EXO_BASEURI}files/${part}
-"
-	    done
-	    echo -e "\e[35mImport splited file ${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI} from\e[00m `echo ${PARTS} | tr '\n' ' '`"
-
-	    FILE_ID=`new_file "${THEME_ID}" "${EXO_ID}" "${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}" "${DIGEST}" "${PARTS}"`
-	    if [ -z "$FILE_ID" ]; then
-	        echo -e "\e[31;01m!!! An error occured during file import! Please check path.\e[00m"
-	    else
-	        echo -e "\e[32m>>> New file added:\e[00m $FILE_ID - $FILE_URI"
-	    fi
-	done
-
-	# Files: entire
-	get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep -v DIGESTS.txt | grep -v '[0-9][0-9]$' | while read f; do basename "$f"; done | while read FILE_URI
-	do
-	    DIGEST=$(get_file "${THM_BASEURI}${EXO_BASEURI}files/DIGESTS.txt" | grep "${FILE_URI}\$" | awk '{ print $1; }')
-
-	    echo "Import file ${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}"
-	    FILE_ID=`new_file "${THEME_ID}" "${EXO_ID}" "${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}" "${DIGEST}"`
-	    if [ -z "$FILE_ID" ]; then
-	        echo -e "\e[31;01m!!! An error occured during file import! Please check path.\e[00m"
-	    else
-	        echo -e "\e[32m>>> New file added:\e[00m $FILE_ID - $FILE_URI"
-	    fi
-	done
-
-
-	LAST=$EXO_ID
-    done
-    echo
-done
diff --git a/admin/get_files.sh b/admin/get_files.sh
deleted file mode 100755
index 68c032cb..00000000
--- a/admin/get_files.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-
-BASEURL="http://localhost:8081"
-BASEURI="https://srs.epita.fr/owncloud/remote.php/webdav/FIC 2016"
-CLOUDUSER='fic'
-CLOUDPASS='f>t\nV33R|(+?$i*'
-
-if [ $# -gt 0 ]
-then
-    WHERE=$1
-else
-    WHERE="files"
-fi
-
-curl -q -f ${BASEURL}/api/themes/files-bindings | while read l
-do
-    FROM=$(echo "$l" | cut -d ";" -f 1)
-    DEST=$(echo "$l" | cut -d ";" -f 2)
-
-    mkdir -p $(dirname "${WHERE}${DEST}")
-
-    wget -O "${WHERE}${DEST}" --user "${CLOUDUSER}" --password "${CLOUDPASS}" "${BASEURI}${FROM}"
-done
diff --git a/admin/index.go b/admin/index.go
index 0461becf..595d0b2f 100644
--- a/admin/index.go
+++ b/admin/index.go
@@ -32,8 +32,8 @@ const indextpl = `<!DOCTYPE html>
   </head>
   <body class="bg-light text-dark">
     <nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-dark text-light">
-      <a class="navbar-brand" href="{{.urlbase}}">
-	<img alt="FIC" src="{{.urlbase}}img/fic.png" style="height: 30px">
+      <a class="navbar-brand" href=".">
+	<img alt="FIC" src="img/fic.png" style="height: 30px">
       </a>
       <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#adminMenu" aria-controls="adminMenu" aria-expanded="false" aria-label="Toggle navigation">
 	<span class="navbar-toggler-icon"></span>
@@ -41,15 +41,15 @@ const indextpl = `<!DOCTYPE html>
 
       <div class="collapse navbar-collapse" id="adminMenu">
 	<ul class="navbar-nav mr-auto">
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}teams">&Eacute;quipes</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}pki">PKI</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}themes">Thèmes</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}exercices">Exercices</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}files">Fichiers</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}public/0">Public</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}events">&Eacute;vénements</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}claims">Tâches</a></li>
-	  <li class="nav-item"><a class="nav-link" href="{{.urlbase}}settings">Paramètres</a></li>
+	  <li class="nav-item"><a class="nav-link" href="teams">&Eacute;quipes</a></li>
+	  <li class="nav-item"><a class="nav-link" href="pki">PKI</a></li>
+	  <li class="nav-item"><a class="nav-link" href="themes">Thèmes</a></li>
+	  <li class="nav-item"><a class="nav-link" href="exercices">Exercices</a></li>
+	  <li class="nav-item"><a class="nav-link" href="files">Fichiers</a></li>
+	  <li class="nav-item"><a class="nav-link" href="public/0">Public</a></li>
+	  <li class="nav-item"><a class="nav-link" href="events">&Eacute;vénements</a></li>
+	  <li class="nav-item"><a class="nav-link" href="claims">Tâches</a></li>
+	  <li class="nav-item"><a class="nav-link" href="settings">Paramètres</a></li>
 	</ul>
       </div>
 
@@ -87,14 +87,14 @@ const indextpl = `<!DOCTYPE html>
     <div class="container mt-1" ng-view></div>
 
     <script src="/js/jquery.min.js"></script>
-    <script src="{{.urlbase}}js/popper.min.js"></script>
+    <script src="js/popper.min.js"></script>
     <script src="/js/bootstrap.min.js"></script>
     <script src="/js/angular.min.js"></script>
-    <script src="{{.urlbase}}js/angular-resource.min.js"></script>
+    <script src="js/angular-resource.min.js"></script>
     <script src="/js/angular-route.min.js"></script>
     <script src="/js/angular-sanitize.min.js"></script>
-    <script src="{{.urlbase}}js/app.js"></script>
-    <script src="{{.urlbase}}js/common.js"></script>
+    <script src="js/app.js"></script>
+    <script src="js/common.js"></script>
   </body>
 </html>
 `
diff --git a/admin/static/index.html b/admin/static/index.html
index 359b58cc..72b283f0 100644
--- a/admin/static/index.html
+++ b/admin/static/index.html
@@ -30,8 +30,8 @@
   </head>
   <body class="bg-light text-dark">
     <nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-dark text-light">
-      <a class="navbar-brand" href="/admin/">
-	<img alt="FIC" src="/admin/img/fic.png" style="height: 30px">
+      <a class="navbar-brand" href=".">
+	<img alt="FIC" src="img/fic.png" style="height: 30px">
       </a>
       <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#adminMenu" aria-controls="adminMenu" aria-expanded="false" aria-label="Toggle navigation">
 	<span class="navbar-toggler-icon"></span>
@@ -39,15 +39,15 @@
 
       <div class="collapse navbar-collapse" id="adminMenu">
 	<ul class="navbar-nav mr-auto">
-	  <li class="nav-item"><a class="nav-link" href="/admin/teams">&Eacute;quipes</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/pki">PKI</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/themes">Thèmes</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/exercices">Exercices</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/files">Fichiers</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/public/0">Public</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/events">&Eacute;vénements</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/claims">Tâches</a></li>
-	  <li class="nav-item"><a class="nav-link" href="/admin/settings">Paramètres</a></li>
+	  <li class="nav-item"><a class="nav-link" href="teams">&Eacute;quipes</a></li>
+	  <li class="nav-item"><a class="nav-link" href="pki">PKI</a></li>
+	  <li class="nav-item"><a class="nav-link" href="themes">Thèmes</a></li>
+	  <li class="nav-item"><a class="nav-link" href="exercices">Exercices</a></li>
+	  <li class="nav-item"><a class="nav-link" href="files">Fichiers</a></li>
+	  <li class="nav-item"><a class="nav-link" href="public/0">Public</a></li>
+	  <li class="nav-item"><a class="nav-link" href="events">&Eacute;vénements</a></li>
+	  <li class="nav-item"><a class="nav-link" href="claims">Tâches</a></li>
+	  <li class="nav-item"><a class="nav-link" href="settings">Paramètres</a></li>
 	</ul>
       </div>
 
@@ -85,13 +85,13 @@
     <div class="container mt-1" ng-view></div>
 
     <script src="/js/jquery.min.js"></script>
-    <script src="/admin/js/popper.min.js"></script>
+    <script src="js/popper.min.js"></script>
     <script src="/js/bootstrap.min.js"></script>
     <script src="/js/angular.min.js"></script>
-    <script src="/admin/js/angular-resource.min.js"></script>
+    <script src="js/angular-resource.min.js"></script>
     <script src="/js/angular-route.min.js"></script>
     <script src="/js/angular-sanitize.min.js"></script>
-    <script src="/admin/js/app.js"></script>
-    <script src="/admin/js/common.js"></script>
+    <script src="js/app.js"></script>
+    <script src="js/common.js"></script>
   </body>
 </html>
diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index 20407127..e5bea0ab 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -228,6 +228,9 @@ angular.module("FICApp")
 	    update: {method: 'PUT'}
 	})
     })
+    .factory("ExerciceHistory", function($resource) {
+	return $resource("/api/exercices/:exerciceId/history.json", { exerciceId: '@id' })
+    })
     .factory("ExerciceFile", function($resource) {
 	return $resource("/api/exercices/:exerciceId/files/:fileId", { exerciceId: '@idExercice', fileId: '@id' }, {
 	    update: {method: 'PUT'}
@@ -1194,6 +1197,12 @@ angular.module("FICApp")
 	} else {
 	    $scope.exercice = Exercice.get({ exerciceId: $routeParams.exerciceId });
 	}
+	$http({
+	    url: "/api/exercices/" + $routeParams.exerciceId + "/stats",
+	    method: "GET"
+	}).then(function(response) {
+	    $scope.stats = response.data;
+	});
 	$http({
 	    url: "/api/themes.json",
 	    method: "GET"
@@ -1272,6 +1281,22 @@ angular.module("FICApp")
 	}
     })
 
+    .controller("ExerciceHistoryController", function($scope, ExerciceHistory, $routeParams, $http, $rootScope) {
+	$scope.history = ExerciceHistory.query({ exerciceId: $routeParams.exerciceId });
+	$scope.delHistory = function(row) {
+	    $http({
+		url: "/api/exercices/" + $routeParams.exerciceId + "/history.json",
+		method: "DELETE",
+		data: row
+	    }).then(function(response) {
+		$rootScope.staticFilesNeedUpdate++;
+		$scope.history = ExerciceHistory.query({ exerciceId: $routeParams.exerciceId });
+	    }, function(response) {
+		$rootScope.newBox('danger', 'An error occurs when removing history item: ', response.data.errmsg);
+	    });
+	}
+    })
+
     .controller("ExerciceFilesController", function($scope, ExerciceFile, $routeParams, $rootScope, $http) {
 	$scope.files = ExerciceFile.query({ exerciceId: $routeParams.exerciceId });
 
diff --git a/admin/static/views/exercice.html b/admin/static/views/exercice.html
index ae4fd3c8..7c72891a 100644
--- a/admin/static/views/exercice.html
+++ b/admin/static/views/exercice.html
@@ -221,6 +221,34 @@
       </div>
     </div>
 
+    <div class="mt-2" style="overflow-y: scroll; height: 450px">
+      <h3>Historique</h3>
+      <table ng-controller="ExerciceHistoryController" class="table table-hover table-striped table-bordered bg-primary text-light">
+	<tbody>
+	  <tr ng-repeat="row in history" ng-class="{'bg-ffound': row.kind == 'flag_found', 'bg-mfound': row.kind == 'mcq_found', 'bg-wchoices': row.kind == 'wchoices', 'bg-success': row.kind == 'solved', 'bg-info': row.kind == 'hint', 'bg-warning': row.kind == 'tries'}">
+	    <td>
+	      <nobr title="{{ row.time }}">{{ row.time | date:"mediumTime" }}</nobr><br>{{ row.kind }} <span ng-if="row.kind != 'flag_found' && row.kind != 'tries' && row.kind != 'mcq_found'">x{{ row.coefficient }}</span>
+	    </td>
+	    <td>
+	      <span ng-if="row.team_id">
+		<a href="teams/{{ row.team_id }}">{{ row.team_name }}</a>
+	      </span>
+	      <span ng-if="row.secondary_title">
+		:
+		<a href="exercices/{{ row.primary }}#key-{{ row.secondary }}" ng-if="row.kind == 'flag_found' || row.kind == 'wchoices'">{{ row.secondary_title }}</a>
+		<a href="exercices/{{ row.primary }}#quizz-{{ row.secondary }}" ng-if="row.kind == 'mcq_found'">{{ row.secondary_title }}</a>
+		<a href="exercices/{{ row.primary }}#hint-{{ row.secondary }}" ng-if="row.kind == 'hint'">{{ row.secondary_title }}</a>
+	      </span>
+	      <span ng-if="!row.secondary_title && row.secondary && row.kind != 'solved'">: {{ row.secondary }}</span>
+	    </td>
+	    <td style="vertical-align: middle; padding: 0; background-color: {{ row.team_color }}">
+	      <button type="button" ng-click="delHistory(row)" class="float-right btn btn-sm btn-danger"><span class="glyphicon glyphicon-remove" aria-hidden="true"></span></button>
+	    </td>
+	  </tr>
+	</tbody>
+      </table>
+    </div>
+
   </div>
 
 </div>
diff --git a/admin/static/views/team-edit.html b/admin/static/views/team-edit.html
index eb230e06..0be2b267 100644
--- a/admin/static/views/team-edit.html
+++ b/admin/static/views/team-edit.html
@@ -104,12 +104,12 @@
 
 </div>
 
-<div class="col-lg-4">
+<div class="col-lg-4" style="overflow-y: scroll; height: 95vh">
   <table ng-controller="TeamHistoryController" class="table table-hover table-striped table-bordered bg-primary text-light">
     <tbody>
       <tr ng-repeat="row in history" ng-class="{'bg-ffound': row.kind == 'flag_found', 'bg-mfound': row.kind == 'mcq_found', 'bg-wchoices': row.kind == 'wchoices', 'bg-success': row.kind == 'solved', 'bg-info': row.kind == 'hint', 'bg-warning': row.kind == 'tries'}">
 	<td>
-	  <nobr title="{{ row.time }}">{{ row.time | date:"mediumTime" }}</nobr><br>{{ row.kind }}
+	  <nobr title="{{ row.time }}">{{ row.time | date:"mediumTime" }}</nobr><br>{{ row.kind }} <span ng-if="row.kind != 'flag_found' && row.kind != 'tries' && row.kind != 'mcq_found'">x{{ row.coefficient }}</span>
 	</td>
 	<td>
 	  <span ng-if="row.primary_title">
@@ -118,7 +118,7 @@
 	  <span ng-if="!row.primary_title">{{ row.primary }}</span>
 	  <span ng-if="row.secondary_title">
 	    :
-	    <a href="exercices/{{ row.primary }}#key-{{ row.secondary }}" ng-if="row.kind == 'key_found'">{{ row.secondary_title }}</a>
+	    <a href="exercices/{{ row.primary }}#key-{{ row.secondary }}" ng-if="row.kind == 'flag_found' || row.kind == 'wchoices'">{{ row.secondary_title }}</a>
 	    <a href="exercices/{{ row.primary }}#quizz-{{ row.secondary }}" ng-if="row.kind == 'mcq_found'">{{ row.secondary_title }}</a>
 	    <a href="exercices/{{ row.primary }}#hint-{{ row.secondary }}" ng-if="row.kind == 'hint'">{{ row.secondary_title }}</a>
 	  </span>
diff --git a/admin/static/views/team-export.html b/admin/static/views/team-export.html
index 15af377e..713c448c 100644
--- a/admin/static/views/team-export.html
+++ b/admin/static/views/team-export.html
@@ -1,4 +1,4 @@
-<div ng-repeat="team in teams" ng-click="show(team.id)" ng-controller="TeamController">
+<div ng-repeat="team in teams" ng-click="show(team.id)" ng-controller="TeamController" ng-if="team.active">
   <div ng-controller="TeamExercicesController">
     <div ng-if="teams[my.team_id].rank">
       <h2>{{ team.name }} <small>{{ teams[my.team_id].rank }}/{{ nb_teams }} &ndash; <ng-pluralize count="my.score" when="{'one': '{}&nbsp;point', 'other': '{}&nbsp;points'}"></ng-pluralize></small></h2>
diff --git a/admin/sync/markdown.go b/admin/sync/markdown.go
index fda44bed..e102d4a1 100644
--- a/admin/sync/markdown.go
+++ b/admin/sync/markdown.go
@@ -59,5 +59,8 @@ func ProcessMarkdown(i Importer, input string, rootDir string) (output string, e
 		}
 	}
 
+	// Trim output
+	output = strings.TrimSpace(output)
+
 	return
 }
diff --git a/frontend/static/js/challenge.js b/frontend/static/js/challenge.js
index bbf92bff..e6b576b4 100644
--- a/frontend/static/js/challenge.js
+++ b/frontend/static/js/challenge.js
@@ -19,12 +19,21 @@ function treatFlagKey(flag) {
     }
 
     if (flag.found == null && flag.soluce !== undefined) {
-	if (check === undefined) check = true;
+	if (flag.value && flag.soluce) {
+	    if (flag.ignore_case)
+		flag.value = flag.value.toLowerCase();
+	    if (flag.validator_regexp) {
+		var re = new RegExp(flag.validator_regexp, flag.ignore_case?'ui':'u');
+		var match = re.exec(flag.value);
+		match.shift();
+		flag.value = match.join("+");
+	    }
 
-	if (flag.value && flag.soluce == b2sum(flag.value))
-	    flag.found = new Date();
-	check &= flag.found;
+	    if (flag.soluce == b2sum(flag.value))
+		flag.found = new Date();
+	}
     }
+    return flag.found !== undefined && flag.found !== false;
 }
 
 angular.module("FICApp", ["ngRoute", "ngSanitize"])
@@ -241,6 +250,8 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 	    var refreshRate = 1200;
 	    if ($rootScope.notify_field == 0 && eventsLastTreated)
 		refreshRate = 30000;
+	    if ($scope.my && !$scope.my.team_id)
+		return;
 	    refreshEventsInterval = $interval(refreshEvents, Math.floor(Math.random() * refreshRate * 2) + refreshRate);
 
 	    if (!eventsLastTreated) {
@@ -329,7 +340,15 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 		angular.forEach(data.exercices, function(exercice, eid) {
 		    if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].submitted)
 			data.exercices[eid].timeouted = true;
+		    if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].solved !== undefined)
+			data.exercices[eid].solved = $scope.my.exercices[eid].solved;
+		    if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].solved_time !== undefined && data.exercices[eid].solved_time === undefined)
+			data.exercices[eid].solved_time = $scope.my.exercices[eid].solved_time;
+		    if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].tries !== undefined && data.exercices[eid].tries === undefined)
+			data.exercices[eid].tries = $scope.my.exercices[eid].tries;
 		    angular.forEach(exercice.flags, function(flag, fid) {
+			if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].flags && $scope.my.exercices[eid].flags[fid] && $scope.my.exercices[eid].flags[fid].found !== undefined)
+			    data.exercices[eid].flags[fid].found = $scope.my.exercices[eid].flags[fid].found;
 			if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].flags && $scope.my.exercices[eid].flags[fid] && $scope.my.exercices[eid].flags[fid].value !== undefined)
 			    data.exercices[eid].flags[fid].value = $scope.my.exercices[eid].flags[fid].value;
 			if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].flags && $scope.my.exercices[eid].flags[fid] && $scope.my.exercices[eid].flags[fid].values !== undefined)
@@ -337,6 +356,10 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 			else
 			    data.exercices[eid].flags[fid].values = [""];
 		    });
+		    angular.forEach(exercice.mcqs, function(mcq, mid) {
+			if ($scope.my && $scope.my.exercices[eid] && $scope.my.exercices[eid].mcqs && $scope.my.exercices[eid].mcqs[mid] && $scope.my.exercices[eid].mcqs[mid].solved !== undefined)
+			    data.exercices[eid].mcqs[mid].solved = $scope.my.exercices[eid].mcqs[mid].solved;
+		    });
 		});
 		angular.forEach(data.exercices, function(exercice, eid) {
 		    angular.forEach(exercice.mcqs, function(mcq, mid) {
@@ -474,7 +497,9 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 	    {
 		resp["flags"] = {};
 		angular.forEach($scope.my.exercices[$rootScope.current_exercice].flags, function(flag,kid) {
-		    treatFlagKey(flag);
+		    if (check === undefined) check = true;
+
+		    check &= treatFlagKey(flag) || flag.found;
 		    if (flag.found == null && flag.soluce === undefined) {
 			resp["flags"][kid] = flag.value;
 		    }
@@ -483,9 +508,9 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 
 	    if ($scope.my.exercices[$rootScope.current_exercice].mcqs && Object.keys($scope.my.exercices[$rootScope.current_exercice].mcqs).length)
 	    {
-		var soluce = "";
 		resp["mcqs"] = {};
 		angular.forEach($scope.my.exercices[$rootScope.current_exercice].mcqs, function(mcq) {
+		    var soluce = "";
 		    if (mcq.solved == null) {
 			angular.forEach(mcq.choices, function(choice, cid) {
 			    if (mcq.soluce !== undefined) {
@@ -515,6 +540,8 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 
 	    if (check !== undefined)
 	    {
+		if (!$scope.my.exercices[$rootScope.current_exercice].tries)
+		    $scope.my.exercices[$rootScope.current_exercice].tries = 0;
 		$scope.my.exercices[$rootScope.current_exercice].tries += 1;
 		$scope.my.exercices[$rootScope.current_exercice].solved_time = new Date();
 
diff --git a/frontend/static/views/defi.html b/frontend/static/views/defi.html
index 48c88b7a..c7039348 100644
--- a/frontend/static/views/defi.html
+++ b/frontend/static/views/defi.html
@@ -31,6 +31,7 @@
 	    <hr class="my-3">
 	    <ul>
 	      <li><strong>Gain&nbsp;:</strong> <ng-pluralize count="themes[current_theme].exercices[current_exercice].gain" when="{'one': '{} point', 'other': '{} points'}"></ng-pluralize> <em ng-if="settings.firstBlood && themes[current_theme].exercices[current_exercice].solved < 1">{{ 1 + settings.firstBlood | coeff }} prem's</em> <em ng-if="themes[current_theme].exercices[current_exercice].curcoeff != 1.0 || settings.exerciceCurrentCoefficient">{{ themes[current_theme].exercices[current_exercice].curcoeff * settings.exerciceCurrentCoefficient | coeff }} bonus</em></li>
+	      <li ng-if="themes[current_theme].exercices[current_exercice].tried"><strong>Tenté par&nbsp;:</strong> <ng-pluralize count="themes[current_theme].exercices[current_exercice].tried" when="{'0': 'aucune équipe', 'one': '{} équipe', 'other': '{} équipes'}"></ng-pluralize> <span ng-if="my.exercices[current_exercice].total_tries">(cumulant <ng-pluralize count="my.exercices[current_exercice].total_tries" when="{'one': '{} tentative', 'other': '{} tentatives'}"></ng-pluralize>)</span>.</li>
 	      <li><strong>Résolu par&nbsp;:</strong> <ng-pluralize count="themes[current_theme].exercices[current_exercice].solved" when="{'0': 'aucune équipe', 'one': '{} équipe', 'other': '{} équipes'}"></ng-pluralize>.</li>
 	    </ul>
 	  </div>
@@ -73,7 +74,7 @@
 		<h4 class="list-group-item-heading">{{ hint.title }}</h4>
 		<p class="list-group-item-text" ng-if="!hint.file && hint.content && !hint.hidden" ng-bind-html="hint.content"></p>
 		<p class="list-group-item-text" ng-if="hint.file">Cliquez ici pour télécharger l'indice.<br>b2sum&nbsp;: <samp class="cksum" title="Somme de contrôle BLAKE2b : {{ hint.content }}">{{ hint.content }}</samp></p>
-		<p class="list-group-item-text" ng-if="!hint.file && !hint.content && (hint.hidden === true || hint.hidden === undefined)">Débloquer cet indice vous fera perdre <ng-pluralize count="hint.cost * settings.hintCurrentCoefficient" when="{'one': '{} point', 'other': '{} points'}"></ng-pluralize>.</p>
+		<p class="list-group-item-text" ng-if="!hint.file && ((!hint.content && hint.hidden === undefined) || hint.hidden === true)">Débloquer cet indice vous fera perdre <ng-pluralize count="hint.cost * settings.hintCurrentCoefficient" when="{'one': '{} point', 'other': '{} points'}"></ng-pluralize>.</p>
 	      </a>
 	    </div>
 	  </div>
@@ -119,9 +120,12 @@
 	      <span class="glyphicon glyphicon-flag" aria-hidden="true"></span> Défi réussi !
 	    </div>
 	    <div class="card-body">
-	      <p class="card-text">
+	      <p class="card-text" ng-if="my.exercices[current_exercice].solved_rank">
 		Vous êtes la {{ my.exercices[current_exercice].solved_rank }}<sup><ng-pluralize count="my.exercices[current_exercice].solved_rank" when="{'one': 're', 'other': 'e'}"></ng-pluralize></sup> équipe à avoir résolu ce défi à {{ my.exercices[current_exercice].solved_time | date:"mediumTime" }}. Vous avez marqué <ng-pluralize count="my.exercices[current_exercice].gain" when="{'one': '{} point', 'other': '{} points'}"></ng-pluralize> !
 	      </p>
+	      <p class="card-text" ng-if="!my.exercices[current_exercice].solved_rank">
+		Bravo, vous avez résolu ce défi à {{ my.exercices[current_exercice].solved_time | date:"mediumTime" }}. Vous marquez <ng-pluralize count="my.exercices[current_exercice].gain" when="{'one': '{} point', 'other': '{} points'}"></ng-pluralize> !
+	      </p>
 	      <hr ng-if="my.exercices[current_exercice].finished">
 	      <p class="card-text" ng-if="my.exercices[current_exercice].finished" ng-bind-html="my.exercices[current_exercice].finished"></p>
 	      <hr ng-if="my.exercices[current_exercice].finished && themes[current_theme].exercices[current_exercice].next">
diff --git a/frontend/static/views/home.html b/frontend/static/views/home.html
index 134052b3..ad65dc54 100644
--- a/frontend/static/views/home.html
+++ b/frontend/static/views/home.html
@@ -15,7 +15,7 @@
 </div>
 
 <div class="card-columns">
-  <div class="card niceborder excard" ng-repeat="(k,theme) in themes" ng-click="goTheme()" ng-class="{'border-success': theme.solved > 0, 'border-warning': theme.exercice_coeff_max > 1}">
+  <div class="card niceborder excard" ng-repeat="(k,theme) in themes" ng-click="goTheme()" ng-class="{'border-success': my.team_id && theme.solved > 0, 'border-warning': theme.exercice_coeff_max > 1}">
     <div class="card-img-top theme-card" ng-show="theme.image" style="background-image: url({{ theme.image }})"></div>
     <div class="card-body text-indent">
       <h5 class="card-title">
diff --git a/frontend/static/views/tag.html b/frontend/static/views/tag.html
index 6f606d28..7dc8910a 100644
--- a/frontend/static/views/tag.html
+++ b/frontend/static/views/tag.html
@@ -1,5 +1,5 @@
 <div class="card-columns">
-  <div class="card niceborder excard" ng-repeat="ex in exercices" ng-click="goDefi()" ng-class="{'border-success': ex.exercice.solved, 'border-secondary': !my.exercices[ex.eid], 'border-warning': ex.exercice.curcoeff > 1.0}">
+  <div class="card niceborder excard" ng-repeat="ex in exercices" ng-click="goDefi()" ng-class="{'border-success': my.team_id && ex.exercice.solved, 'border-secondary': !my.exercices[ex.eid], 'border-warning': ex.exercice.curcoeff > 1.0}">
     <div class="card-img-top theme-card" ng-show="ex.theme.image" style="background-image: url({{ ex.theme.image }})"></div>
     <div class="card-body">
       <h6 class="card-title">
diff --git a/libfic/exercice.go b/libfic/exercice.go
index ea2a3795..efce52b1 100644
--- a/libfic/exercice.go
+++ b/libfic/exercice.go
@@ -330,6 +330,21 @@ func (e Exercice) SolvedCount() int64 {
 	}
 }
 
+// SolvedTeams returns the list of Team that already have solved the challenge.
+func (e Exercice) SolvedTeams() (teams []int64) {
+	if rows, err := DBQuery("SELECT id_team FROM exercice_solved WHERE id_exercice = ?", e.Id); err == nil {
+		defer rows.Close()
+
+		for rows.Next() {
+			var tid int64
+			if err := rows.Scan(&tid); err == nil {
+				teams = append(teams, tid)
+			}
+		}
+	}
+	return
+}
+
 // TriedTeamCount returns the number of Team that attempted to solve the exercice.
 func (e Exercice) TriedTeamCount() int64 {
 	tries_table := "exercice_tries"
@@ -345,6 +360,32 @@ func (e Exercice) TriedTeamCount() int64 {
 	}
 }
 
+type TbT struct {
+	IdTeam int64 `json:"id_team"`
+	Tries  int64 `json:"tries"`
+}
+
+// TriesByTeam returns the number of tries by Team.
+func (e Exercice) TriesByTeam() (ts []TbT, sum int64) {
+	tries_table := "exercice_tries"
+	if SubmissionUniqueness {
+		tries_table = "exercice_distinct_tries"
+	}
+
+	if rows, err := DBQuery("SELECT id_team, COUNT(id_team) FROM " + tries_table + " WHERE id_exercice = ? GROUP BY id_team", e.Id); err == nil {
+		defer rows.Close()
+
+		for rows.Next() {
+			var tbt TbT
+			if err := rows.Scan(&tbt.IdTeam, &tbt.Tries); err == nil {
+				sum += tbt.Tries
+				ts = append(ts, tbt)
+			}
+		}
+	}
+	return
+}
+
 // TriedCount returns the number of cumulative attempts, all Team combined, for the exercice.
 func (e Exercice) TriedCount() int64 {
 	tries_table := "exercice_tries"
diff --git a/libfic/exercice_history.go b/libfic/exercice_history.go
new file mode 100644
index 00000000..29873345
--- /dev/null
+++ b/libfic/exercice_history.go
@@ -0,0 +1,112 @@
+package fic
+
+import (
+	"fmt"
+	"time"
+)
+
+// GetHistory aggregates all sources of events or actions for an Exercice
+func (e Exercice) GetHistory() ([]map[string]interface{}, error) {
+	hist := make([]map[string]interface{}, 0)
+
+	if rows, err := DBQuery(`SELECT id_team, U.name, U.color, "tries" AS kind, time, 0, id_exercice, NULL, NULL FROM exercice_tries NATURAL JOIN teams U WHERE id_exercice = ? UNION
+                                 SELECT id_team, U.name, U.color, "solved" AS kind, time, coefficient, id_exercice, NULL, NULL FROM exercice_solved S NATURAL JOIN teams U WHERE id_exercice = ? UNION
+                                 SELECT id_team, U.name, U.color, "hint" AS kind, time, coefficient, id_exercice, H.id_hint, H.title FROM team_hints T INNER JOIN exercice_hints H ON H.id_hint = T.id_hint NATURAL JOIN teams U WHERE id_exercice = ? UNION
+                                 SELECT id_team, U.name, U.color, "wchoices" AS kind, time, coefficient, id_exercice, F.id_flag, F.type FROM team_wchoices W INNER JOIN exercice_flags F ON F.id_flag = W.id_flag NATURAL JOIN teams U WHERE id_exercice = ? UNION
+                                 SELECT id_team, U.name, U.color, "flag_found" AS kind, time, 0, id_exercice, K.id_flag, K.type FROM flag_found F INNER JOIN exercice_flags K ON K.id_flag = F.id_flag NATURAL JOIN teams U WHERE id_exercice = ? UNION
+                                 SELECT id_team, U.name, U.color, "mcq_found" AS kind, time, 0, id_exercice, Q.id_mcq, Q.title FROM mcq_found F INNER JOIN exercice_mcq Q ON Q.id_mcq = F.id_mcq NATURAL JOIN teams U WHERE id_exercice = ?
+                                 ORDER BY time DESC`, e.Id, e.Id, e.Id, e.Id, e.Id, e.Id); err != nil {
+		return nil, err
+	} else {
+		defer rows.Close()
+
+		for rows.Next() {
+			var id_team int64
+			var team_name string
+			var team_color uint32
+			var kind string
+			var time time.Time
+			var coeff float32
+			var exercice int64
+			var secondary *int64
+			var secondary_title *string
+
+			if err := rows.Scan(&id_team, &team_name, &team_color, &kind, &time, &coeff, &exercice, &secondary, &secondary_title); err != nil {
+				return nil, err
+			}
+
+			h := map[string]interface{}{}
+
+			h["team_id"] = id_team
+			h["team_name"] = team_name
+			h["team_color"] = fmt.Sprintf("#%x", team_color)
+			h["kind"] = kind
+			h["time"] = time
+			h["coefficient"] = coeff
+			h["primary"] = e.Id
+			if secondary != nil {
+				h["secondary"] = secondary
+				h["secondary_title"] = secondary_title
+			}
+
+			hist = append(hist, h)
+		}
+	}
+
+	return hist, nil
+}
+
+// DelHistoryItem removes from the database an entry from the history.
+func (e Exercice) DelHistoryItem(tId int64, kind string, h time.Time, secondary *int64) (interface{}, error) {
+	if kind == "tries" {
+		if res, err := DBExec("DELETE FROM exercice_tries WHERE id_team = ? AND time = ? AND id_exercice = ?", tId, h, e.Id); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "hint" && secondary != nil {
+		if res, err := DBExec("DELETE FROM team_hints WHERE id_team = ? AND time = ? AND id_hint = ?", tId, h, *secondary); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "wchoices" && secondary != nil {
+		if res, err := DBExec("DELETE FROM team_wchoices WHERE id_team = ? AND time = ? AND id_flag = ?", tId, h, *secondary); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "flag_found" && secondary != nil {
+		if res, err := DBExec("DELETE FROM flag_found WHERE id_team = ? AND time = ? AND id_flag = ?", tId, h, *secondary); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "mcq_found" && secondary != nil {
+		if res, err := DBExec("DELETE FROM mcq_found WHERE id_team = ? AND time = ? AND id_mcq = ?", tId, h, *secondary); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "solved" {
+		if res, err := DBExec("DELETE FROM exercice_solved WHERE id_team = ? AND time = ? AND id_exercice = ?", tId, h, e.Id); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else {
+		return nil, nil
+	}
+}
diff --git a/libfic/flag_key.go b/libfic/flag_key.go
index c31c8ac7..065cb89f 100644
--- a/libfic/flag_key.go
+++ b/libfic/flag_key.go
@@ -73,7 +73,10 @@ func getHashedFlag(raw_value []byte) [blake2b.Size]byte {
 	return hash
 }
 
-func ExecValidatorRegexp(vre string, val []byte) ([]byte, error) {
+func ExecValidatorRegexp(vre string, val []byte, ignorecase bool) ([]byte, error) {
+	if (ignorecase) {
+		vre = "(?i)" + vre
+	}
 	if re, err := regexp.Compile(vre); err != nil {
 		return val, err
 	} else if res := re.FindSubmatch(val); res == nil {
@@ -92,7 +95,7 @@ func (e Exercice) AddRawFlagKey(name string, help string, ignorecase bool, valid
 	// Check that raw value passes through the regexp
 	if validator_regexp != nil {
 		var err error
-		if raw_value, err = ExecValidatorRegexp(*validator_regexp, raw_value); err != nil {
+		if raw_value, err = ExecValidatorRegexp(*validator_regexp, raw_value, ignorecase); err != nil {
 			return FlagKey{}, err
 		}
 	}
@@ -127,7 +130,7 @@ func (k FlagKey) ComputeChecksum(val []byte) (cksum []byte, err error) {
 
 	// Check that raw value passes through the regexp
 	if k.ValidatorRegexp != nil {
-		if val, err = ExecValidatorRegexp(*k.ValidatorRegexp, val); err != nil {
+		if val, err = ExecValidatorRegexp(*k.ValidatorRegexp, val, k.IgnoreCase); err != nil {
 			return
 		}
 	}
diff --git a/libfic/team_history.go b/libfic/team_history.go
index b7bf484c..0b21276a 100644
--- a/libfic/team_history.go
+++ b/libfic/team_history.go
@@ -8,12 +8,12 @@ import (
 func (t Team) GetHistory() ([]map[string]interface{}, error) {
 	hist := make([]map[string]interface{}, 0)
 
-	if rows, err := DBQuery(`SELECT id_team, "tries" AS kind, time, E.id_exercice, E.title, NULL, NULL FROM exercice_tries T INNER JOIN exercices E ON E.id_exercice = T.id_exercice WHERE id_team = ? UNION
-                                 SELECT id_team, "solved" AS kind, time, E.id_exercice, E.title, coefficient, NULL FROM exercice_solved S INNER JOIN exercices E ON E.id_exercice = S.id_exercice WHERE id_team = ? UNION
-                                 SELECT id_team, "hint" AS kind, time, E.id_exercice, E.title, H.id_hint, H.title FROM team_hints T INNER JOIN exercice_hints H ON H.id_hint = T.id_hint INNER JOIN exercices E ON E.id_exercice = H.id_exercice WHERE id_team = ? UNION
-                                 SELECT id_team, "wchoices" AS kind, time, E.id_exercice, E.title, F.id_flag, F.type FROM team_wchoices W INNER JOIN exercice_flags F ON F.id_flag = W.id_flag INNER JOIN exercices E ON E.id_exercice = F.id_exercice WHERE id_team = ? UNION
-                                 SELECT id_team, "flag_found" AS kind, time, E.id_exercice, E.title, K.id_flag, K.type FROM flag_found F INNER JOIN exercice_flags K ON K.id_flag = F.id_flag INNER JOIN exercices E ON K.id_exercice = E.id_exercice WHERE id_team = ? UNION
-                                 SELECT id_team, "mcq_found" AS kind, time, E.id_exercice, E.title, Q.id_mcq, Q.title FROM mcq_found F INNER JOIN exercice_mcq Q ON Q.id_mcq = F.id_mcq INNER JOIN exercices E ON Q.id_exercice = E.id_exercice WHERE id_team = ?
+	if rows, err := DBQuery(`SELECT id_team, "tries" AS kind, time, 0, E.id_exercice, E.title, NULL, NULL FROM exercice_tries T INNER JOIN exercices E ON E.id_exercice = T.id_exercice WHERE id_team = ? UNION
+                                 SELECT id_team, "solved" AS kind, time, coefficient, E.id_exercice, E.title, NULL, NULL FROM exercice_solved S INNER JOIN exercices E ON E.id_exercice = S.id_exercice WHERE id_team = ? UNION
+                                 SELECT id_team, "hint" AS kind, time, coefficient, E.id_exercice, E.title, H.id_hint, H.title FROM team_hints T INNER JOIN exercice_hints H ON H.id_hint = T.id_hint INNER JOIN exercices E ON E.id_exercice = H.id_exercice WHERE id_team = ? UNION
+                                 SELECT id_team, "wchoices" AS kind, time, coefficient, E.id_exercice, E.title, F.id_flag, F.type FROM team_wchoices W INNER JOIN exercice_flags F ON F.id_flag = W.id_flag INNER JOIN exercices E ON E.id_exercice = F.id_exercice WHERE id_team = ? UNION
+                                 SELECT id_team, "flag_found" AS kind, time, 0, E.id_exercice, E.title, K.id_flag, K.type FROM flag_found F INNER JOIN exercice_flags K ON K.id_flag = F.id_flag INNER JOIN exercices E ON K.id_exercice = E.id_exercice WHERE id_team = ? UNION
+                                 SELECT id_team, "mcq_found" AS kind, time, 0, E.id_exercice, E.title, Q.id_mcq, Q.title FROM mcq_found F INNER JOIN exercice_mcq Q ON Q.id_mcq = F.id_mcq INNER JOIN exercices E ON Q.id_exercice = E.id_exercice WHERE id_team = ?
                                  ORDER BY time DESC`, t.Id, t.Id, t.Id, t.Id, t.Id, t.Id); err != nil {
 		return nil, err
 	} else {
@@ -23,12 +23,13 @@ func (t Team) GetHistory() ([]map[string]interface{}, error) {
 			var id_team int64
 			var kind string
 			var time time.Time
+			var coefficient float32
 			var primary *int64
 			var primary_title *string
 			var secondary *int64
 			var secondary_title *string
 
-			if err := rows.Scan(&id_team, &kind, &time, &primary, &primary_title, &secondary, &secondary_title); err != nil {
+			if err := rows.Scan(&id_team, &kind, &time, &coefficient, &primary, &primary_title, &secondary, &secondary_title); err != nil {
 				return nil, err
 			}
 
@@ -36,6 +37,7 @@ func (t Team) GetHistory() ([]map[string]interface{}, error) {
 
 			h["kind"] = kind
 			h["time"] = time
+			h["coefficient"] = coefficient
 			if primary != nil {
 				h["primary"] = primary
 				h["primary_title"] = primary_title
@@ -52,6 +54,37 @@ func (t Team) GetHistory() ([]map[string]interface{}, error) {
 	return hist, nil
 }
 
+// UpdateHistoryCoeff updates the coefficient for a given entry.
+func (t Team) UpdateHistoryCoeff(kind string, h time.Time, givenId int64, newCoeff float32) (interface{}, error) {
+	if kind == "hint" {
+		if res, err := DBExec("UPDATE team_hints SET coefficient = ? WHERE id_team = ? AND time = ? AND id_hint = ?", newCoeff, t.Id, h, givenId); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "wchoices" {
+		if res, err := DBExec("UPDATE team_wchoices SET coefficient = ? WHERE id_team = ? AND time = ? AND id_flag = ?", newCoeff, t.Id, h, givenId); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else if kind == "solved" {
+		if res, err := DBExec("UPDATE exercice_solved SET coefficient = ? WHERE id_team = ? AND time = ? AND id_exercice = ?", newCoeff, t.Id, h, givenId); err != nil {
+			return 0, err
+		} else if nb, err := res.RowsAffected(); err != nil {
+			return 0, err
+		} else {
+			return nb, err
+		}
+	} else {
+		return nil, nil
+	}
+}
+
 // DelHistoryItem removes from the database an entry from the history.
 func (t Team) DelHistoryItem(kind string, h time.Time, primary *int64, secondary *int64) (interface{}, error) {
 	if kind == "tries" && primary != nil {
@@ -62,7 +95,7 @@ func (t Team) DelHistoryItem(kind string, h time.Time, primary *int64, secondary
 		} else {
 			return nb, err
 		}
-	} else if kind == "hint" && primary != nil {
+	} else if kind == "hint" && primary != nil && secondary != nil {
 		if res, err := DBExec("DELETE FROM team_hints WHERE id_team = ? AND time = ? AND id_hint = ?", t.Id, h, *secondary); err != nil {
 			return 0, err
 		} else if nb, err := res.RowsAffected(); err != nil {
@@ -70,7 +103,7 @@ func (t Team) DelHistoryItem(kind string, h time.Time, primary *int64, secondary
 		} else {
 			return nb, err
 		}
-	} else if kind == "wchoices" && primary != nil {
+	} else if kind == "wchoices" && primary != nil && secondary != nil {
 		if res, err := DBExec("DELETE FROM team_wchoices WHERE id_team = ? AND time = ? AND id_flag = ?", t.Id, h, *secondary); err != nil {
 			return 0, err
 		} else if nb, err := res.RowsAffected(); err != nil {
@@ -78,7 +111,7 @@ func (t Team) DelHistoryItem(kind string, h time.Time, primary *int64, secondary
 		} else {
 			return nb, err
 		}
-	} else if kind == "flag_found" && secondary != nil {
+	} else if kind == "flag_found" && primary != nil && secondary != nil {
 		if res, err := DBExec("DELETE FROM flag_found WHERE id_team = ? AND time = ? AND id_flag = ?", t.Id, h, *secondary); err != nil {
 			return 0, err
 		} else if nb, err := res.RowsAffected(); err != nil {
@@ -86,7 +119,7 @@ func (t Team) DelHistoryItem(kind string, h time.Time, primary *int64, secondary
 		} else {
 			return nb, err
 		}
-	} else if kind == "mcq_found" && secondary != nil {
+	} else if kind == "mcq_found" && primary != nil && secondary != nil {
 		if res, err := DBExec("DELETE FROM mcq_found WHERE id_team = ? AND time = ? AND id_mcq = ?", t.Id, h, *secondary); err != nil {
 			return 0, err
 		} else if nb, err := res.RowsAffected(); err != nil {
diff --git a/libfic/team_my.go b/libfic/team_my.go
index a471652b..66c425ae 100644
--- a/libfic/team_my.go
+++ b/libfic/team_my.go
@@ -30,6 +30,8 @@ type myTeamFlag struct {
 	Help        string            `json:"help,omitempty"`
 	Separator   string            `json:"separator,omitempty"`
 	IgnoreOrder bool              `json:"ignore_order,omitempty"`
+	IgnoreCase  bool              `json:"ignore_case,omitempty"`
+	ValidatorRe *string           `json:"validator_regexp,omitempty"`
 	Solved      *time.Time        `json:"found,omitempty"`
 	Soluce      string            `json:"soluce,omitempty"`
 	Choices     map[string]string `json:"choices,omitempty"`
@@ -62,6 +64,7 @@ type myTeamExercice struct {
 	SolvedTime   *time.Time   `json:"solved_time,omitempty"`
 	SolvedRank   int64        `json:"solved_rank,omitempty"`
 	Tries        int64        `json:"tries,omitempty"`
+	TotalTries   int64        `json:"total_tries,omitempty"`
 	VideoURI     string       `json:"video_uri,omitempty"`
 	Issue        string       `json:"issue,omitempty"`
 	IssueKind    string       `json:"issuekind,omitempty"`
@@ -112,7 +115,7 @@ func MyJSONTeam(t *Team, started bool) (interface{}, error) {
 					exercice.Overview = strings.Replace(e.Overview, "$FILES$", FilesDir, -1)
 					exercice.Finished = strings.Replace(e.Finished, "$FILES$", FilesDir, -1)
 					exercice.VideoURI = e.VideoURI
-					exercice.Tries = e.TriedCount()
+					exercice.TotalTries = e.TriedCount()
 					exercice.Gain = int(float64(e.Gain) * e.Coefficient)
 				} else {
 					solved, stime := t.HasSolved(e)
@@ -189,6 +192,8 @@ func MyJSONTeam(t *Team, started bool) (interface{}, error) {
 
 						// Retrieve solved state or solution for public iface
 						if t == nil {
+							flag.IgnoreCase = k.IgnoreCase
+							flag.ValidatorRe = k.ValidatorRegexp
 							flag.Soluce = hex.EncodeToString(k.Checksum)
 						} else if PartialValidation {
 							flag.Solved = t.HasPartiallySolved(k)