backup

        solve : function(depth)
        {
            return;
            // 16 possible state changes per round
            var maxDepth = 7;

            for (var i = 0; i < maxDepth; ++ i)
            {
                var start = new Date().getTime();
                this.solve2(i, 0);
                var elapsed = Math.floor(new Date().getTime() - start);

                console.log('[' + i + '] elasped = ' + elapsed + ' - ' + (elapsed / this.iterCount));

                if (this.bestSolution)
                {
                    break;
                }
            }
        },

        solve2 : function(maxDepth, depth)
        {
            if (!depth)
            {
                console.log(maxDepth);
                this.bestSolution = null;
                this.stack = Array();
                this.iterCount = 0;
                this.evalMovers = Array();

                this.evalMovers.push(this.movers[this.captureTile.target.groupId]);

                for (var i = 0; i < this.movers.length; ++i)
                {
                    if (i != this.captureTile.target.groupId)
                    {
                        this.evalMovers.push(this.movers[i]);
                    }
                }

                depth = 0;
            }

            // this.printStack(this.stack);

            if (depth > maxDepth || this.bestSolution) return false;

            var maxMover = (depth == maxDepth) ? 1 : 4;

            for (var piece = 0; piece < maxMover; ++piece)
            {
                var mover = this.evalMovers[piece];

                for (var dir = 0; dir < 4; ++dir)
                {
                    var condition = this.conditions[dir];
                    var from = mover.tile;
                    var to = this.walkPath(from, condition.condition, condition.increment);

                    if (to && to != from)
                    {
                        // recurse
                        this.stack.push({ p: piece, d: dir });

                        to.piece = from.piece;
                        from.piece = null;
                        to.piece.tileIndex = to.index;

                        this.iterCount++;
                        var hasSolution = false;

                        if (to.target && to.target.groupId === mover.groupId)
                        {
                            var solution = '[' + maxDepth + '] ' + '[' + this.stack.length + '] - ';

                            for (var i = 0; i < this.stack.length; ++i)
                            {
                                solution = solution + '{ p: ' + this.stack[i].p + ', d: ' + this.stack[i].d + ' }, ';
                            }

                            console.log(solution);

                            if (!this.bestSolution || this.stack.length < this.bestSolution.length)
                            {
                                this.bestSolution = this.stack.slice(0);
                            }

                            hasSolution = true;
                        }

                        if (hasSolution || !this.bestSolution || depth+1 < this.bestSolution.length)
                        {
                            this.solve2(maxDepth, depth + 1);
                        }

                        from.piece = to.piece;
                        to.piece = null;
                        from.piece.tileIndex = from.index;

                        this.stack.pop();

                        if (hasSolution)
                        {
                            return;
                        }
                    }
                }
            }

            if (!depth)
            {
                console.log('iter: ' + this.iterCount);
                console.log('best: ' + (this.bestSolution ? this.bestSolution.length : -1));
                //_alert('done');
            }
        }










{"boardPieces":[3,2,1,0],"movers":[{"groupId":3,"position":87},{"groupId":0,"position":111},{"groupId":1,"position":127},{"groupId":2,"position":182}],"targets":[{"id":0,"color":"#c22","groupId":0},{"id":1,"color":"#2c2","groupId":1},{"id":2,"color":"#22c","groupId":2},{"id":3,"color":"#cc2","groupId":3},{"id":4,"color":"#c22","groupId":0},{"id":5,"color":"#2c2","groupId":1},{"id":6,"color":"#22c","groupId":2},{"id":7,"color":"#cc2","groupId":3},{"id":8,"color":"#c22","groupId":0},{"id":9,"color":"#2c2","groupId":1},{"id":10,"color":"#22c","groupId":2},{"id":12,"color":"#c22","groupId":0},{"id":13,"color":"#2c2","groupId":1},{"id":14,"color":"#22c","groupId":2},{"id":15,"color":"#cc2","groupId":3},{"id":16,"color":"#c22","groupId":0}],"activeTarget":{"id":11,"color":"#cc2","groupId":3}}
{"boardPieces":[3,2,1,0],"movers":[{"groupId":3,"position":87},{"groupId":0,"position":111},{"groupId":1,"position":127},{"groupId":2,"position":182}],"targets":[{"id":0,"color":"#c22","groupId":0},{"id":1,"color":"#2c2","groupId":1},{"id":2,"color":"#22c","groupId":2},{"id":3,"color":"#cc2","groupId":3},{"id":4,"color":"#c22","groupId":0},{"id":5,"color":"#2c2","groupId":1},{"id":6,"color":"#22c","groupId":2},{"id":7,"color":"#cc2","groupId":3},{"id":8,"color":"#c22","groupId":0},{"id":9,"color":"#2c2","groupId":1},{"id":10,"color":"#22c","groupId":2},{"id":12,"color":"#c22","groupId":0},{"id":13,"color":"#2c2","groupId":1},{"id":15,"color":"#cc2","groupId":3},{"id":16,"color":"#c22","groupId":0}],"activeTarget":{"id":14,"color":"#22c","groupId":2}}

120 + 60k equity
120 + 6-8k + 60k
127k + 60k
127k + 92k
127k + 100k



{"boardPieces":[1,0,2,3],"movers":[{"groupId":1,"position":26},{"groupId":2,"position":74},{"groupId":0,"position":113},{"groupId":3,"position":117}],"targets":[{"id":0,"color":"#c22","groupId":0},{"id":1,"color":"#2c2","groupId":1},{"id":2,"color":"#22c","groupId":2},{"id":4,"color":"#c22","groupId":0},{"id":5,"color":"#2c2","groupId":1},{"id":6,"color":"#22c","groupId":2},{"id":7,"color":"#cc2","groupId":3},{"id":8,"color":"#c22","groupId":0},{"id":9,"color":"#2c2","groupId":1},{"id":10,"color":"#22c","groupId":2},{"id":11,"color":"#cc2","groupId":3},{"id":12,"color":"#c22","groupId":0},{"id":13,"color":"#2c2","groupId":1},{"id":14,"color":"#22c","groupId":2},{"id":15,"color":"#cc2","groupId":3},{"id":16,"color":"#c22","groupId":0}],"activeTarget":{"id":3,"color":"#cc2","groupId":3}}