Merge Blocks
Puzzle
Merge Blocks is a free number puzzle where you slide the whole board and merge matching tiles into bigger and bigger values. Pick the classic 4×4 board, a relaxed 5×5, or the brutal 3×3, and earn undo credits as you play. Reaching 2048 is the milestone — going beyond it is the obsession.
▶ Play now — freeHow to play
Press the arrow keys or swipe to slide every tile in one direction. Two tiles with the same number merge into one when they collide. A new tile appears after every move, and the game ends when the board is full with no merges left. Every three merges banks an undo, up to three.
Tips & tricks
Choose one corner for your biggest tile and never move it. Keep your highest values in a single row and fill it in order, like counting. Use undos to recover from a bad spawn, not a bad plan — if your grid is tidy, one mistake rarely ends the run.