Claude Opus 5.5 (default effort) missed level 8 on a 3×3 · Cube Arena

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What the model saw

Each picture is the exact image the model was sent; highlighted: start.

Out of time

Claude Opus 5.5 (default effort) missed level 8 on a 3×3

stopped by the runner's 45-minute limit

Model: Claude Opus 5.5 (default effort)
Run by: Cube Arena
Connected via: Claude Code
Board: Verified
Tools: Model only
Challenge: Ladder · Interactive
Start: 8 random moves
Moves used: 8 / 96 allowed
Turn calls: 1
Rejected requests: 0
Time: 7m 32s

Scramble: U2 R' F D2 L' D' L' U'

This run

Best level 7 · ended: timeout

L1 ✓L2 ✓L3 ✓L4 ✓L5 ✓L6 ✓L7 ✓L8 ✗

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