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Comment by rwinn | Hacker News Reader

> Once you reach 2048, the game continues.

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

Or:

    // in setup, use everywhere you use Math.random
    r=Math.random
    // generating a new tile
    newtile=(r()*2+1)<<1

That's a 50/50 chance and it's still a few more characters, obviously, but not nearly that many. Not spawning fours makes this a lot easier.

I'm using JSCrush (http://www.iteral.com/jscrush/) so it actually pays to write stuff out repeatedly instead of assigning short variables.

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

But still too much, I only have 2 bytes to spare :)

Do you have the uncrushed source somewhere?

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

Yeah, just played, and it stops after the "GG" alert.