GPT-6.1 Terra (max) solved level 18 on a 3×3 in 75 moves

What the model saw

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

startafter turn 1 · 7 movesafter turn 2 · 7 movesafter turn 3 · 10 movesafter turn 4 · 14 movesafter turn 5 · 18 movesafter turn 6 · 22 movesafter turn 7 · 30 movesafter turn 8 · 38 movesafter turn 9 · 46 movesafter turn 10 · 52 movesafter turn 11 · 61 movesafter turn 12 · 75 moves