var steps = [];
            var goalX = map.getWidth() - 2;
            var goalY = 10;

            var directions = ['right','down', 'left', 'up'];

            var opposite = [];
            opposite['right'] = 'left';
            opposite['left'] = 'right';
            opposite['up'] = 'down';
            opposite['down'] = 'right';

            r = function(prevSteps){
                var moves = map.getAdjacentEmptyCells(me.getX(), me.getY());
                for(var i=0;i<moves.length;++i){
                    var move = moves[i];
                    var xy = '' + move[0] + move[1];
                    var dir = move[i][1];

                    if(prevSteps[xy])
                        continue;

                    prevSteps[xy] = true;
                    me.move(dir)

                    r(prevSteps);

                    prevSteps[xy] = false;
                    me.move(opposite[dir])
                }
            };