Unridden Tetris replay

Each move, the engine enumerates every hard-drop placement and Unridden picks one by reading label logits after the prefill. No tokens are generated. Step through a game to see the distribution it read and the exact HTTP exchange behind each drop.

Corrected Tetris replay — twelve measured simulator games on one RTX 5090 with Gemma 4 26B-A4B. Use Play, the speed selector, and the game tabs to inspect each run. Choice reached the 300-piece test cap on both level-18 seeds and one level-29 seed; lookahead ended at 39 and 64 pieces at level 29. This animation reconstructs the recorded simulator traces. Live NES play remains untested.

Corrected controller code · Results and limitations

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lines cleared (cumulative) stack height holes

Decision

HTTP exchanges for this move