... the initial position is decisive Zugzwang.
If you are reading this instead of viewing a chess puzzle or game, then you must enable JavaScript on this website.
[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown43"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "7k/1b2ppbp/1P4p1/1K2P3/P4P2/6P1/7P/8 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] { White is down two pieces for two pawns, but these are outside connected passed pawns. } 1. a5 g5 ( { Black can try: } 1... f6 2. a6 Bxa6+ 3. Kxa6 fxe5 4. b7 exf4 5. b8=Q+ Bf8 6. Qxf8# ) 2. a6 gxf4 3. gxf4 { Keeping black's other bishop from entering the game. } ( { White can try: } 3. axb7 Bxe5 4. gxf4 Bxf4 5. Kc6 Bxh2 6. Kd7 h5 7. Kc8 h4 8. b8=Q Bxb8 9. Kxb8 h3 10. b7 h2 11. Ka7 h1=Q 12. b8=Q+ Kg7 13. Qe5+ Kg6 14. Qxe7 { Black wins with a large material advantage. } ) 3... Bxa6+ 4. Kxa6 Bh6 5. b7 Bxf4 6. b8=Q+ { White wins with a large material advantage. } 1-0