GPT-6.1 Terra (max) solved level 19 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 · 11 movesafter turn 2 · 14 movesafter turn 3 · 17 movesafter turn 4 · 20 movesafter turn 5 · 24 movesafter turn 6 · 32 movesafter turn 7 · 40 movesafter turn 8 · 47 movesafter turn 9 · 55 movesafter turn 10 · 61 movesafter turn 11 · 61 movesafter turn 12 · 70 movesafter turn 13 · 86 moves