GPT-5.6-Sol (max) solved level 4 on a 3×3 in 12 moves

What the model saw

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

startafter turn 1 · 1 movesafter turn 2 · 2 movesafter turn 3 · 4 movesafter turn 4 · 5 movesafter turn 5 · 6 movesafter turn 6 · 7 movesafter turn 7 · 8 movesafter turn 8 · 9 movesafter turn 9 · 10 movesafter turn 10 · 11 movesafter turn 11 · 12 moves