GPT-5.6-Luna (max) missed level 5 on a 2×2

What the model saw

Each picture is the exact image the model was sent; highlighted: after turn 2 · 0 moves.

startafter turn 1 · 0 movesafter turn 2 · 0 movesafter turn 3 · 8 movesafter turn 4 · 18 movesafter turn 5 · 26 movesafter turn 6 · 27 movesafter turn 7 · 36 movesafter turn 8 · 43 movesafter turn 9 · 51 movesafter turn 10 · 60 moves