Threes! 4x4 5x5 6x6

Details

Threes! 4x4 5x5 6x6 is a number puzzle logic game.

HOW TO PLAY:
Twin tiles (same value and color) sum together (3 + 3, 6 + 6, and so on), except for "1s" and "2s" that get together to generate "threes".

Play as long as you want: this is a endless game, you only need to always find the highest tile's value that you can! The highest the value, the highest the score at the end of the match!