Make a new game · difficulty 1
2048 2048
This challenge asks a coding agent to deliver a game you can actually play. It is checked by 10 browser tests, then published here with its score and source. 这个任务要求 AI 编程助手做出一款真正能玩的游戏。完成后会跑 10 项自动测试，并把分数和源码一起公开。
2.0.0challenge version
10browser checks
60m time allowed
0model attempts published
Generated outputs
Same challenge. Different model-made games.
We never cherry-pick the highest score. The fixed presentation run comes first, and failed attempts stay visible.
No published output for this release. The frozen task contract remains available for audit.
Test contract
What the browser checks.
BuildMechanicsStateInputStability
| Check | What it measures | Points | Test file |
|---|---|---|---|
| Build build | Build | 5 | build |
| Merge Once merge-once | Mechanics | 20 | merge-once |
| Valid Spawn valid-spawn | Mechanics | 10 | valid-spawn |
| Terminal State terminal-state | Mechanics | 15 | terminal-state |
| Directional Move directional-move | Mechanics | 15 | directional-move |
| Clean Reset clean-reset | State | 10 | clean-reset |
| Deterministic Seed deterministic-seed | State | 5 | deterministic-seed |
| Keyboard Input keyboard-input | Input | 10 | keyboard-input |
| Rapid Input rapid-input | Stability | 5 | rapid-input |
| Run Seed run-seed | State | 5 | run-seed |
Technical challenge identity
Tested at 1280 × 720 with Node 22, fixed-seed resets, controlled time, native input, and schema-validated state snapshots.
Task IDbuild.2048.v2
Task contentsha256:6185ea4e766acde99f4d4df354defc487eebaca7d5149d531799b580ebac7486