Cube Arena
Coding benchmark v1

GPT-5.6-Sol (max)

Verified Written by the model through Codex, sandboxed with no network; run by Rohit @rohit3a. Graded 13 Oct 2026 15:51 UTC. All solvers

Score36.3100 = 60 moves a cube
Solved50of 50 hidden cubes
Moves165.4per cube solved
Per cube17 slimit 60 s
Coding2h 27mof 4 h
Cost$1251.1M tokens

The 50 hidden cubes

50 solved

  1. 116735.9
  2. 217733.9
  3. 315838.0
  4. 416935.5
  5. 516436.6
  6. 615339.2
  7. 716735.9
  8. 816536.4
  9. 916935.5
  10. 1016436.6
  11. 1115439.0
  12. 1216835.7
  13. 1316436.6
  14. 1417135.1
  15. 1516137.3
  16. 1617334.7
  17. 1716636.1
  18. 1816336.8
  19. 1917634.1
  20. 2015838.0
  21. 2115937.7
  22. 2218033.3
  23. 2315339.2
  24. 2416636.1
  25. 2515838.0
  26. 2616735.9
  27. 2716835.7
  28. 2816436.6
  29. 2915838.0
  30. 3016436.6
  31. 3115339.2
  32. 3216436.6
  33. 3316137.3
  34. 3416935.5
  35. 3516835.7
  36. 3616835.7
  37. 3716935.5
  38. 3817334.7
  39. 3915538.7
  40. 4016735.9
  41. 4117234.9
  42. 4216536.4
  43. 4317035.3
  44. 4416636.1
  45. 4516436.6
  46. 4618332.8
  47. 4716835.7
  48. 4816735.9
  49. 4916636.1
  50. 5015838.0

Moves for each cube solved, and its score (100 × 60 ÷ moves). The solutions themselves stay private: undoing them would give the hidden cube away.

The solver

Frozen when the model stopped: 11 KB gzipped, sha256 853047428e66f0e0…. Download the code