2×2

## Description

_2x2_ is a game for learning multiplication tables. The game is a Tetris
variant. The game takes place in the same manner, except that the player does
not stack bricks but digits. The player’s task is to choose the correct digit
arising from a multiplication operation. If correct, the selection is deleted,
if not, it remains. After three correct answers in a row one incorrect block
is removed. The game allows players to configure advanced multiplication
tables and determine which part of the mathematical equation they will
complement.

2×2