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4

The fruits of my labor: Extension to larger grids: Improvement, possibly optimal:


8

To kick this thing off, I've got: EDIT: I've come across useful patterns that provide good answers for even $n$ greater than 6: Imgur Link


3

Black can stalemate in move White's job here is moving their pieces such that black can capture almost every move while bringing their pieces into the final position. Final position:


3

13 moves (25 ply): 1. e3 a5 2. Qh5 Ra6 3. Qxa5 h5 4. h4 Rah6 5. Rh3 f6 6. Qxc7 Kf7 7. Rf3 d5 8. Qxb8 Bf5 9. Qxb7 Bh7 10. Qxd5+ Qxd5 11. Rf5 Qc4 12. Bxc4+ Kg6 13. Be6 1/2-1/2 I started off with the well-known stalemate (without queen exchange) in 10 moves, composed by Sam Loyd (see this chess.com post). In that final stalemate position, the role of the queen ...


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