rwinn

http://nassp.sourceforge.net/wiki/Main_Page

I wrote a small script that evolves them based on a scoring function, paste in your console and run evolve(1000, score)

    function evolve(numGenerations, scoringFn, stepInterval) {
      var children = document.querySelectorAll('[id*=child]'), generation = 0
      if (stepInterval == null) stepInterval = 10

      function run() {
        var i, child, ctx, data, score, winner, winningScore = -Infinity
        for (i = children.length - 1; i >= 0; i--) {
          child = children[i]
          ctx = child.getContext('2d')
          data = ctx.getImageData(0, 0, 318, 148)
          score = scoringFn(data)
          if (score > winningScore) {
            winningScore = score
            winner = i
          }
        }
        children[winner].click()
        if (++generation < numGenerations) setTimeout(run, stepInterval)
        // console.log(winner, winningScore)
      }

      run()
    }

    function score(imageData) {
      var i, r, g, b, rv = 0,
          data = imageData.data, l = data.length
      for (i = 0; i < l; i += 4) {
        r = 255 - data[i]
        g = 255 - data[i+1]
        b = 255 - data[i+2]
        a = data[i+3] / 255
        rv += (r + g + b) * a
      }
      return rv
    }

> it is likely to have repercussions especially on the cryptographic applications of smart cards, RFID chips (2), etc.

It will be easier to bruteforce RSA/DSA?

http://johan-nordberg.com/2048/

(or if you're in the future the js1k crew might have updated my submission already, in that case, forget you read this, it was perfect from the start, whoa i need a break, my brain is trying to find ways to write this comment using fewer characters, commas are nice, sleep)

Crappy algo, I would think that lots of comments indicates that people find it interesting... Next time I won't reply to peoples comments :/

  (Math.random()*2+1)<<1
  Math.random()>.25?2:4

Got nuked for some reason by HN's algorithm dropping it from nr 4 to the second page :(

That's a bug, it should pop up a dialog with your score. Rest is intentional.

  newtile = 2 vs. newtile = Math.random() > 0.25 ? 2 : 4

I think it is some hisenbug related to that js1k loads all entries by injecting the script in a iframes src attribute.

EDIT: clicking anywhere to focus the iframe makes it stop

https://en.bitcoin.it/wiki/Mining_hardware_comparison