Wow, such clone, many timewaste... http://doge2048.com/ (honestly I'm disappointed it's not a copy of Wipeout 2048 with dogs, that would be AWESOME)
My scores are getting worse, I keep thinking I got it nailed and know what I'm doing but then I take my eye of the ball and "Game over"
Did the 2048 tile and 34K+ score on third attempt. Kinda lost interest once you've found the 'how to' . Nice time eater anyway.
I worked out how to complete 2048. I then completed it. I then googled if my solution was the best solution. Apprently though it's all a bit of a 'rip off' from Threes, which those guys cover in their blog. They also namecheck the numberwang version of 2048, which is pure brilliance on a stick! http://louhuang.com/2048-numberwang/