GPT-6.1 Terra (max) solved level 15 on a 3×3 in 86 moves

What the model saw

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

startafter turn 1 · 9 movesafter turn 2 · 9 movesafter turn 3 · 12 movesafter turn 4 · 15 movesafter turn 5 · 18 movesafter turn 6 · 26 movesafter turn 7 · 34 movesafter turn 8 · 42 movesafter turn 9 · 50 movesafter turn 10 · 56 movesafter turn 11 · 63 movesafter turn 12 · 77 movesafter turn 13 · 86 moves