YOUR NEXT RIVAL IS A MACHINE.

ARENA

Big stacks. Bold moves. Beat the machine.

READY TO PLAY00:00Same pieces. Different decisions.

1 HUMAN / 1 AIREADY WHEN YOU ARE

←→ move↑ rotate↓ soft dropSPACE hard dropP pause

Pick your rival

01 / 03

Human gravityAI speed

Top speed: each AI moves as soon as its decision is ready. The live counter shows actual moves per second.

API keys stay in memory for this tab and pass through your Cloudflare Worker (or local host) to the selected provider. Closing the tab clears them.

The machine’s mind

LIVE

Watch your rival think.

Start a match to see actual model choices, confidence and response times.

How the AI plays ＋

The engine finds reachable landing positions and shortlists six using board features. Laya or your API model picks the final move. This tests model decisions with a heuristic shortlist; it is not a trained Tetris champion.

Every player gets the same seeded seven-bag sequence. Clearing 2 / 3 / 4 lines sends 1 / 2 / 4 garbage rows to the next living player. Incoming garbage can be canceled by your own attacks. AI inference time counts toward its move interval.

The practice bot chooses by a fixed formula and makes no model or API call. Rotation uses simple wall and floor kicks.

BLOCK ARENA

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