Bots coded by Claude, Gemini, Mimo and DeepSeek stacking polyominoes (think Tetris pieces, but with n blocks).

Reddit r/artificial / 4/27/2026

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Key Points

  • The post discusses an online challenge write-up about “stackmaxxing,” which involves stacking polyominoes—Tetris-like pieces made of n blocks.
  • It claims that “ChatGPT GPT 5.5” did not perform well enough (“DOA”) in this particular setup.
  • The write-up highlights bot implementations attributed to multiple AI systems—Claude, Gemini, Mimo, and DeepSeek—showing different approaches to the stacking task.
  • The overall focus is on practical, game-like evaluation of AI-coded bots rather than a new model release or theory contribution.
Bots coded by Claude, Gemini, Mimo and DeepSeek stacking polyominoes (think Tetris pieces, but with n blocks).

ChatGPT GPT 5.5 was DOA.

Write up here.

submitted by /u/reditzer
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Bots coded by Claude, Gemini, Mimo and DeepSeek stacking polyominoes (think Tetris pieces, but with n blocks). | AI Navigate