Across
- 3. Gradually lowering a tetromino
- 4. S-shaped tetromino
- 5. Russian folk song used as Tetris theme
- 7. Saving a tetromino for later use
- 9. T-shaped tetromino
- 12. Pajitnov creator of Tetris
- 17. Moving a tetromino horizontally
- 18. Clearing four lines simultaneously
- 19. Four-block tetromino shape
Down
- 1. Instantly placing a tetromino
- 2. Geometric shape composed of four blocks
- 3. Unique tetromino shapes in the game
- 6. I-shaped tetromino
- 8. Removing a completed horizontal line
- 10. J-shaped tetromino
- 11. Changing tetromino orientation
- 13. L-shaped tetromino
- 14. Z-shaped tetromino
- 15. Completing a horizontal line
- 16. Outline showing tetromino placement