Grid, pieces, target, and strict movement rules.
Spatial planning benchmark
RushHourEval
RushHourEval is a spatial-planning benchmark built from 450 Rush Hour puzzles across 3×3, 4×4, and 5×5 boards. Models must produce complete move-by-move plans; every step is replayed and classified for legality, target completion, and optimality.
450puzzles
3×board sizes
1,221replayable answers
Everymove validated
Puzzle in
Plan out
The model returns a complete, ordered move sequence.
Every step checked
Optimal, sub-optimal, unsolved, illegal, or unparsed.
Interactive answer viewer
Replay lab
Watch the model’s attempted solution—even when it fails.
3x3 · Easy
Puzzle 1
TargetCar
Start
Prompt sent to the model view
Reference solution optimal
Validated model performance
One leaderboard, three board sizes
Target / optimal rates are shown together. Color bars split optimal, sub-optimal, unsolved, and illegal attempts.
OptimalSub-optimalLegal, no targetIllegal / parse fail
Dataset browser
Inspect all 450 puzzles
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Page 1
Original validation plots
Performance breakdowns
Click any plot to inspect it at full size.