for game.ioxapp.com/color/

color.js

function exec() {
  var panels = $('#box').find('span');
  var base =  panels.eq(0);
  panels.splice(0,1);

  var targets = [].filter.call(panels, function(panel) {
    return $(base).css('background-color') != $(panel).css('background-color');
  });

  if(targets.length > 1) {
    $(base[0]).click();
  }
  else {
    $(targets[0]).click();
  }
}

var timer = setInterval(exec, 10);

setTimeout(function() {
  clearInterval(timer);
}, 61000);