Might And Magick columns solution (brutal)

Might And Magick Columns

var rules = {
    l: [0,-1,1,1],
    r:  [1,-1,-1,0],
    b: [-1,1,0,1]
},
go = function(start, direction) {
    return start.map(function(value, index) {
        var val = value + rules[direction][index];
        if (val < 0) val = 4 + val;
        return val == 4 ? 0 : val;
    });
},
walk = function(path, start) {
    console.info('walking path:', path);
    console.info('start:', start);
    Array.prototype.forEach.call(path, function(step) {
        console.info('step:', step, start = go(start, step));
    });
}
route = [{
    path: '',
    position: [3,0,1,2]
}],
finish = false,
makeStep = function() {
    var steps = [];
    route.forEach(function(step) {
        Object.keys(rules).forEach(function(direction) {
            var path = step.path + direction,
                position = go(step.position, direction);
            
            if (position.join('') === '0000') {
                console.info('path', path, position.join(''));
                finish = true;
            }
            
            
            steps.push({
                path: path,
                position: position
            });
        })
    });
    
    route = steps;
}


var i = 0;

while (!finish) {
    makeStep()
    console.info('step', i++)
}