janezhu

I got up to 16220 that way-- the thing you have to look out for though is as you build the cascading layers, when you get the row three, not to block yourself in (having all 3 rows full so that the only direction you can go, is the one you are avoiding).

Try to keep your cascading layers down to 2, and keep about 2 steps ahead when you get to the 3rd layer. Many people have suggested keeping your highest number in the corner but I've found that doing so makes it easier to have 2's and 4's "invade" that fortress of high numbers you're building close to the wall. The best position is for the highest number to be 2nd or 3rd in the row closest to the wall cushioned by the second highest numbers on either side so that you can build up the numbers to either side of them, and eventually add them in.

Example:

X___X___X___X

X___X___2___4

8___16__32__16

64__256_512_128