Tetris Guideline

Modern standardization is the current specification The Tetris Company enforces for making all new Tetris games alike in form.

Current modern rules include:

• 22x10 cell playing field
• Tetromino colors
  • Cyan i
  • Yellow o
  • Purple t
  • Green s
  • Red z
  • Blue j
  • Orange l
• Tetromino spawn locations
  • The i and o spawn in the middle columns
  • The rest spawn in the left-middle columns