diff --git a/src/activities/tangram/tangram.js b/src/activities/tangram/tangram.js
index c10e7ffbf..83c464c08 100644
--- a/src/activities/tangram/tangram.js
+++ b/src/activities/tangram/tangram.js
@@ -1,129 +1,123 @@
 /* GCompris - tangram.js
  *
  * Copyright (C) 2015 YOUR NAME <xx@yy.org>
  *
  * Authors:
  *   <THE GTK VERSION AUTHOR> (GTK+ version)
  *   "YOUR NAME" <YOUR EMAIL> (Qt Quick port)
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 3 of the License, or
  *   (at your option) any later version.
  *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
  *   You should have received a copy of the GNU General Public License
  *   along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 .pragma library
 .import QtQuick 2.0 as Quick
 
 var url = "qrc:/gcompris/src/activities/tangram/resource/"
 
 
 var currentLevel = 0
 var items
 
 function start(items_) {
     items = items_
     currentLevel = 0
     initLevel()
 }
 
 function stop() {
 }
 
 function initLevel() {
     items.bar.level = currentLevel + 1
 }
 
 function nextLevel() {
     if(items.numberOfLevel <= ++currentLevel ) {
         currentLevel = 0
     }
     initLevel();
 }
 
 function previousLevel() {
     if(--currentLevel < 0) {
         currentLevel = items.numberOfLevel - 1
     }
     initLevel();
 }
 
 function getRandomInt(min, max) {
     return Math.floor(Math.random() * (max - min + 1) + min);
 }
 
 // Determines the angle of a straight line drawn between point one and two.
 // The number returned, which is a float in radian,
 // tells us how much we have to rotate a horizontal line clockwise
 // for it to match the line between the two points.
 function getAngleOfLineBetweenTwoPoints(x1, y1, x2, y2) {
     var xDiff = x2 - x1;
     var yDiff = y2 - y1;
     return Math.atan2(yDiff, xDiff);
 }
 
 function getDistance(ix, iy, jx, jy) {
     return Math.sqrt(Math.pow((ix - jx), 2) + Math.pow((iy - jy), 2))
 }
 
 function dumpTans(tans) {
     console.log("== tans ==")
     for(var i = 0; i < tans.length; i++) {
         console.log(tans[i].img, tans[i].x, tans[i].y, tans[i].rotation, tans[i].flipping)
     }
 }
 
 /* Returns the [x, y] coordinate of the closest point */
 function getClosest(point) {
     var nbpiece = items.currentTans.pieces.length
     var closestItem
     var closestDist = 1
     for(var i = 0; i < nbpiece; i++) {
         var p1 = items.currentTans.pieces[i]
         var dist = getDistance(p1.x, p1.y, point[0], point[1])
         if(dist < closestDist) {
             closestDist = dist
             closestItem = p1
         }
     }
 
     if(closestDist < 0.1)
         return [closestItem.x, closestItem.y]
     return
 }
 
 function check() {
     var nbpiece = items.currentTans.pieces.length
     var userTans = items.userList.asTans()
-    dumpTans(userTans)
-    //console.log('== check ==')
     for(var i = 0; i < nbpiece; i++) {
         var p1 = items.currentTans.pieces[i]
         var ok = false
-        console.log("testing " + p1.img)
         for(var j = 0; j < nbpiece; j++) {
             var p2 = userTans[j]
             // Check type distance and rotation are close enough
-            console.log("   compare with " + p2.img)
             if(p1.img === p2.img &&
                     p1.flipping == p2.flipping &&
                     getDistance(p1.x, p1.y, p2.x, p2.y) < 0.01 &&
                     p1.rotation === p2.rotation ) {
                 ok = true
-                console.log("piece ", p1.img, "OK")
                 break
             }
-            console.log("piece ", p1.img, getDistance(p1.x, p1.y, p2.x, p2.y), 'rot exp/got', p1.rotation, '/', p2.rotation, "NOK")
         }
         if(!ok)
             return false
     }
     return true
 }