Теория:

Basic Tetromino shapes
Similar to Trinomino, Tetramino too has various ways of representing its four-unit squares. The different tetromino can be obtained by rotating the existing tetromino.
Types of Tetromino:
  • Straight Tetromino:
straight tetromino.png
  • Square Tetromino:
Square Tetromino.png
  • L-Tetromino:
L tetromino.png
  • T-Tetromino:
T tetromino.png
  • Skew (or) Z-Tetromino:
Z tetromino.png