GPT-6.1 Terra (max) solved level 16 on a 3×3 in 84 moves

What the model saw

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

startafter turn 1 · 8 movesafter turn 2 · 11 movesafter turn 3 · 14 movesafter turn 4 · 18 movesafter turn 5 · 22 movesafter turn 6 · 30 movesafter turn 7 · 37 movesafter turn 8 · 45 movesafter turn 9 · 53 movesafter turn 10 · 67 movesafter turn 11 · 77 movesafter turn 12 · 84 moves