I have always a slight feeling of pity for the man who has no knowledge of chess.
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[Event "USCF Absolute CC Tournament"]
[Site "?"]
[Date "2007.??.??"]
[Round "?"]
[White "SIM Wesley T. Branghorst"]
[Black "SIM Lawrence Coplin"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "2414"]
[FEN "K7/P7/3b4/2n2Q2/2k5/8/8/8 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "2444"]
{ Don't feel bad if you cannot find white's only move for the win in this
correspondence game between two Senior International Masters. Most computers
cannot find it either. Black has imprisoned white's King preventing the
promotion of white's last pawn. } 1. Qe4+ ( { White can try: } 1. Qxc5+ Bxc5 2. Kb7 Bxa7 { Draw. } ) ( { White can also try: } 1. Qe6+ Nxe6 2. Kb7 Nc7 3. a8=Q Nxa8 4. Kxa8 { Draw. } ) ( { White can also try: } 1. Qf7+ Kd4 2. Qf1 Kd5 3. Qd1+ Kc6 4. Qxd6+ Kxd6 5. Kb8 Na6+ 6. Kb7 Nc7 7. a8=Q Nxa8 8. Kxa8 { Draw. } ) 1... Nxe4 ( { Black can try: } 1... Kb5 2. Qd5 Bh2 3. Qxc5+ Kxc5 4. Kb7 { White promotes
and wins. } ) 2. Kb7 Kb5 3. a8=Q { White wins with a large material advantage. } 3... Nc5+ { This move starts the move counter. White must capture a piece or
checkmate in 50 moves or less. Otherwise, black may claim a draw. } 4. Kc8 Kc4 5. Kd8 Kd4 6. Ke8 Bf4 7. Kf7 Be3 8. Kg6 Ne4 9. Kf5 Nd6+ 10. Ke6 Nc4 11. Qf3 Nd2 12. Qd5+ Kc3 13. Qf5 Kd4 14. Qg4+ Kc3 15. Kd5 Kd3 16. Qh5 { Another deep
move putting black into zugzwang. } 16... Bf2 ( 16... Bf4 17. Qe8 Bh2 18. Qe1 Bf4 19. Qe6 Be3 20. Qa6+ Kc3 21. Qe2 Bd4 22. Qe6 Nb3 23. Qe1+ Kc2 24. Qe2+ Kc3 25. Qc4+ Kb2 26. Qd3 Bh8 27. Qe2+ Kc3 28. Qf3+ Kc2 29. Qf5+ Kd2 30. Qf4+ Kc3 31. Qc7+ Kb4 32. Qb8+ Kc3 33. Qxh8+ ) 17. Qe8 { Yet another deep move forcing
the win of a piece and shortly thereafter the game. Black resigned here, but
lets explore some of black's potential moves. } 17... Kc3 ( 17... Be3 18. Qb5+ Kc2 19. Qe2 Bg5 20. Qe5 Bh6 21. Qf5+ Kd1 22. Kd4 Ke2 ( 22... Nb3+ 23. Kc4 Kc1 ( 23... Nd2+ 24. Kd3 Ke1 ( 24... Kc1 25. Qf6 Nb1 26. Qxh6+ ) 25. Qf6 ) 24. Kxb3 ) 23. Qe6+ ) 18. Qg6 Be1 19. Qe6 Bf2 20. Qf6+ Kc2 21. Qxf2 Kd3 22. Qe1 Kc2 23. Qe3 Nb3 24. Qe2+ Kc3 25. Qc4+ Kb2 26. Qd3 Nc1 27. Qd2+ Kb1 28. Kc4 Na2 29. Kb3 Nc1+ 30. Ka3 Nd3 31. Qc3 Nc1 32. Qb2# 1-0