Block 21

The goal of the Block 21 block puzzle is to get the block number twenty-one. To do this, you must click on groups of three or more blocks with the same values. As a result of the click, the blocks will merge into one, and its value will increase by one. The merger will occur exactly at the point where you click, and a new block will appear there. There are no time or number of moves restrictions. The Block 21 game may end if there are no options left to merge and you use all the auxiliary options located on the vertical panel on the right.