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David Paulowich wrote on Sun, Oct 20 04:52 PM UTC:Excellent ★★★★★

ATTENTION EDITORS: the applet wants to play the illegal move 17... e7-e5 in the game below, ignoring the White Rook on e6. I wonder if two-step initial pawn moves were coded as leaps here.

1. h4 d6 2. Nf3 Bh3 3. Rxh3 Nc6 4. g4 Nd4 5. Nxd4 Kd7 6. Nf5 Ke6 7. Rc3 Kf6 8. Rxc7 Kg6 9. Rxb7 h6 10. Rxa7 Kh7 11. Rxa8 Nf6 12. Rxd8 Kg8 13. g5 Rh7 14. h5 Kh8 15. g6 Ng8 16. Rxd6 f6 17. Re6

At first glance, the final position here (with a blockade stalemate) may appear impossible, but I managed find a legal sequence of moves leading up to it. Shatranj blockade stalemates are actually easier to construct. H. G. Muller has posted an applet in the Shatranj Comments (May 3, 2021). Click "Play it!" and copypaste the second game to see an example. Clicking "Move" at the end makes the applet appropriately respond with *** I resign! ***

1. a3 a6 2. a4 Ra7 3. a5 Nc6 4. Ra3 Be6 5. Rf3 Kc8 6. Rxf7 Kb8 7. Rxg7 Ka8 8. Rxh7 Qf7 9. Rxf7 Nf6 10. Rxf6 Bd6 11. Nf3 Rb8 12. Ne5 Bc8 13. Rxd6 e6 14. Rxd7 Nb4 15. Rxc7 Nd5 16. Rc6 Nb6 17. Rxb6


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