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Book review: An Introduction to Chess Endgame Studies
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Studies awarded for the
Czeskoslovensky Sach 2025
tournament:
[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.08"] [Round ""] [White "Pervakov,Oleg and Sumbatjan,Karen"] [Black "1st prize"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/5k2/b7/4R1B1/7p/7K/4R1P1/4b1q1 w - - 0 1"] [PlyCount "16"] [EventDate "2025"] 1. Re7+ (1. Rxe1 $2 Bc8+ 2. Kxh4 Qh2#) 1... Kg6 2. R2e6+ (2. R7e6+ $2 Kh5 $1 3. Rxe1 (3. Bf4 Qh1+ 4. Bh2 Bxe2 $19 5. Re5+) 3... Bf1 $1 4. Rxf1 Qxf1 5. Kh2 Kxg5 6. Re3 Qf4+ $19) 2... Kh5 $1 (2... Kxg5 3. Re5+ Kf4 4. Re4+ $11) 3. Bf4 Qh1+ (3... Bc8 $4 4. Rh7#) 4. Bh2 Bc8 (4... Bg3 5. Re5+ Bxe5 6. Rxe5+ Kg6 7. Re6+ Kf5 8. Rxa6 $11) 5. Rh7+ $1 {them. try} (5. Rd7 $2 Bd2 $1 (5... Bxd7 $2 6. g4+ hxg3 {stalemate} (6... Kg5 7. Rg6+ $1 Kxg6 {stalemate})) 6. Rd5+ Bg5 7. g4+ hxg3 8. Rxg5+ Kxg5 $19) (5. g4+ $2 hxg3 6. Rh7+ Kg5 7. Rh5+ Kf4 $1 (7... Kxh5 {stalemate})) 5... Kg5 6. Rh5+ $1 Kxh5 7. g4+ Kg5 (7... hxg3 {stalemate}) 8. Rg6+ $1 (8. Re5+ $2 Kf6 9. Re6+ Kxe6 $1 (9... Bxe6 {stalemate})) 8... Kxg6 { stalemate} 1/2-1/2
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[Event "Ceskoslovensky šach"] [Site ""] [Date "2025.10"] [Round ""] [White "David Gurgenidze and Martin Minski"] [Black "2nd prize"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/6P1/5k2/2q5/6K1/2Nb3r/Q6p/2n4B w - - 0 1"] [PlyCount "14"] [EventDate "2025"] [SourceVersionDate "2025.08.19"] 1. Qe6+ $1 (1. Nd5+ $2 Kf7 $1 (1... Kxg7 $2 2. Qb2+ $1 Kh7 3. Kxh3 $11) 2. g8=Q+ Kxg8 3. Qa8+ Kg7 4. Kxh3 Bf1+ 5. Kg4 Qg1+ $19) 1... Kxg7 2. Nd5 $1 (2. Qd7+ $2 Kh6 3. Qe6+ Bg6 4. Kxh3 Qxc3+ 5. Kxh2 Qd2+ $19 {win after TB-7}) 2... Rg3+ $1 3. Kxg3 (3. Kh4 $2 Rg6 $19) 3... Ne2+ 4. Kh3 $1 (4. Kxh2 $2 Qg1+ 5. Kh3 Qg3#) (4. Kh4 $2 Qf2+ 5. Kg5 (5. Kh5 Ng3+ 6. Kg5 Ne4+ 7. Bxe4 Qg3+ $19) 5... Qg3+ 6. Qg4 Qe5+ 7. Kh4+ Kh6 $19) 4... Nf4+ $1 5. Nxf4 Bf5+ 6. Kxh2 Qf2+ (6... Qc2+ 7. Qe2 $11) 7. Ng2 Bxe6 {model pin stalemate} 1/2-1/2
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.07"] [Round ""] [White "Arestov,Pavel and Avni,Amatzia"] [Black "3rd prize"] [Result "1-0"] [SetUp "1"] [FEN "8/1nK4p/1B3P1k/P7/r4P2/8/8/8 w - - 0 1"] [PlyCount "25"] [EventDate "2025"] [SourceVersionDate "2025.05.26"] 1. f5 (1. Kxb7 $2 Kg6 $11) 1... Nc5 $1 (1... Rf4 $4 2. Be3 (2. a6)) (1... Nxa5 $2 2. Be3+ Kh5 3. f7 Rc4+ 4. Kd7 $18) 2. Bxc5 Rxa5 3. Kd6 Rb5 4. Kd5 (4. Be3+ $2 Kh5 5. Ke6 Kg4 $11) 4... Ra5 (4... Rb7 $2 5. Be7 $18) 5. Kd4 (5. Kd6 Rb5 6. Kd5 {repeats}) 5... Ra4+ 6. Ke5 (6. Ke3 {prolongs}) 6... Ra5 7. Kd5 Rb5 8. Kd4 {completes his traingulation; now there is no check on the fourth rank} (8. f7 $2 Rxc5+ 9. Kxc5 Kg7 $11) 8... Rb8 (8... Ra5 9. f7 $18) 9. Ke4 (9. Ke5 Rb5 {loss of time}) (9. Bd6 Rb5 10. Bc5 {loss of time}) 9... Rb7 10. Kf4 $1 ({ the last preparatory move; not yet} 10. Be7 $2 Kg5 $1 $11) 10... Rf7 (10... Rd7 11. Bf8+ {there are other winning moves, but not} (11. Kg4 $4 Rd4+ $1 12. Bxd4 $11) 11... Kh5 12. Be7 $18) 11. Be7 (11. Ke5 $2 Rb7 12. Ke6 Kg5 13. Be3+ Kg4 $11) 11... Kh5 12. Ke5 Kh6 13. Ke6 $18 1-0
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.03"] [Round ""] [White "Polasek, Jaroslav"] [Black "spec. prize"] [Result "1-0"] [SetUp "1"] [FEN "4r3/pp6/3P1Q2/P1p5/k3q3/8/1PR1P3/3K4 w - - 0 1"] [PlyCount "23"] [EventDate "2025"] {Bílý postupně obětuje své pěšce za aktivitu. V hlavní a druhé hlavní variantě se opakuje pěkný motiv b4+ s otevřením drah pro bílé figury. Možná v rámci článku prezentovat jako průběh fiktivní partie} 1. d7 $1 (1. Qf3 Qxf3 2. exf3 Kb5 3. d7 Rd8 4. Rd2 Kc6) (1. Qc3 Qh1+ 2. Kd2 (2. Qe1) 2... Qh6+) (1. Rd2 $2 Qb1#) 1... Qh1+ (1... Qd5+ 2. Rd2 Qh1+ 3. Kc2 Qe4+ 4. Kc1 Qc4+ 5. Rc2) 2. Kd2 Qd5+ 3. Ke1 Qxd7 ({main} 3... Qh1+ 4. Qf1 Qh4+ ({Po } 4... Qxf1+ 5. Kxf1 Rd8 6. Rd2 Kb5 7. Rd6 $1 {se černý král nedostane včas k pěšci d7, chybí mu jedno tempo k záchraně, např.} b6 8. e4 Ka6 9. e5 Kb7 10. e6) 5. Kd1 ({K ničemu nevede} 5. Qf2 Qh1+ 6. Kd2 Qd5+ 7. Kc1 Qh1+ { a bílý král se musí vrátit na e1.}) 5... Rd8 6. Rd2 $1 ({Na aktivizaci dámy je ještě brzo:} 6. Qf5 $2 Qh1+ 7. Kd2 Qh6+ 8. e3 Qd6+ {a bílý přijde o svou chloubu - postouplého pěšce d7 - a černý udrží případnou věžovku s pěšcem méně, např.} 9. Kc1 Qxd7 10. b3+ Kb5 $1 11. Qxc5+ (11. Rxc5+ Ka6 12. Qxd7 Rxd7 13. Kc2 b6 14. axb6 Kxb6 {a černý udží věžovku s pěšcem méně.}) 11... Ka6 12. Qc4+ Qb5 ({tohle by asi měl černý také urdžet} 12... b5 13. axb6+ (13. Qc3 Qe6 14. Kb2 (14. e4 Qd6) ( 14. b4 Re8 15. Kb2 Qe5 16. Qxe5 Rxe5 17. Rc3 Re4 18. Kb3 Kb7) 14... b4 15. Qxb4 Qe5+ 16. Ka2 Qxa5+) 13... Kxb6 14. Qc5+ (14. Qb4+ Qb5) 14... Kb7 15. Qb4+ Ka8 16. Kb2 {a černý by to snad měl udržet} Qe6) 13. Qe6+ b6 14. axb6 axb6 15. Kb1 (15. Ra2+ Kb7) 15... Qd5 (15... Qf1+) (15... Qd3 16. Kb2 Kb7 {a černý bude vyčkávat})) 6... Qe4 {Hrozí Db1 mat} (6... Kxa5 7. Qf5 Kb5 8. e4) 7. Kc1 Qc4+ 8. Kb1 Qe4+ $1 (8... Kxa5 9. Qf6 (9. Qf5)) 9. Ka1 Kxa5 10. b4+ $1 {tenhle motiv se objeví v hlavní variantě} ({Teď už} 10. Qf6 $2 { nestačí pro} Qa4+ 11. Kb1 Rxd7) 10... Kb5 (10... Kb6 11. Qf6+ Kc7 12. Qd6#) ( 10... cxb4 11. Qf6 $1) 11. e3+ $1 (11. Qf6 $2 Qe3 $1 12. Qxd8 (12. Qd6 cxb4 $1 13. Rd5+ Ka4 (13... Kc4 $2 14. Rc5+ Kb3 15. Qd1+) 14. Rd2 Kb5 $1 $11) 12... Qa3+ 13. Kb1 Qb3+ 14. Kc1 Qc3+) 11... c4 12. Qf6 Qxe3 13. Qf5+ {s čPc5 by bílý tento tah neměl} Kxb4 (13... Ka4 14. Qa5+ Kb3 15. Rb2+ Kc3 16. b5+ Kd3 17. Qxd8) 14. Rb2+ Kc3 15. Qa5+ Kd4 16. Qxd8) 4. Qf4+ $1 ({Po} 4. Qc3 $2 {remizuje skoro každý tah černého} Qd4) (4. Rxc5 $2 Qd3 $1 {a o remízu by musel bojovat bílý} 5. Qh4+ Re4 6. Qh5) 4... Kxa5 (4... Kb5 5. Qc4+ Kxa5 6. b4+ $1 cxb4 7. Qc5+ {s dalším Va2+}) 5. b4+ $1 (5. Rxc5+ $2 b5 ({asi remizuje i} 5... Ka6 {což je škoda} 6. Qc4+ b5 7. Rc6+ Kb7 8. Qxb5+ Ka8 9. Rc5 Qxb5 10. Rxb5 a6 $11) 6. Rc7 Re4 $1 7. Qg3 Re3 $1 (7... Qd4 $2 8. Qa3+ Qa4 9. Rxa7+) 8. Qf4 Re4 $1 {s opakováním tahů}) 5... Kb6 ({main?} 5... cxb4 { tahle varianta je zajímavá, ale jednoznačná úplně není} 6. Qg5+ $1 (6. Ra2+ $2 Kb5 $1 (6... Kb6 $2 7. Qxb4+ Kc7 (7... Qb5 8. Qd6+ Qc6 9. Rb2+ Ka5 10. Qb4+) 8. Qf4+ $1 Kb6 9. Rb2+ ({nebo} 9. Rd2 Qb5 10. Qd6+ (10. Qf6+ Kc7 11. Qd6+ )) 9... Ka6 10. Rd2 Qb5 11. Ra2+ Kb6 12. Qd6+ Qc6 13. Rb2+) 7. Qg5+ Kc4 $1 8. Qc1+ ({Po} 8. Rc2+ Kb3 9. Qc1 Qd4 {by bílý dokonce prohrál}) 8... Kb5 $11) 6... b5 (6... Ka4 7. Qc5 $1 Qe6 8. Qxa7+ Kb3 (8... Kb5 9. Rc5#) 9. Qa2#) (6... Ka6 7. Ra2+ Kb6 8. Qa5+ Kc6 9. Rc2+ {se ziskem dámy}) 7. Ra2+ Kb6 8. Qg1+ $1 Kc6 9. Ra6+ $1 ({K ničemu nevede} 9. Qg2+ Kb6 10. Qf2+ Kc6) 9... Kd5 10. Qg5+ ({výhru zbytečně komplikuje} 10. Qg6 Re4 (10... Re7 11. Qd3+ Kc5 12. Qc2+ Kd5 13. Rg6) 11. Qg5+ Kc4 12. Qc1+ Kd5 (12... Kb3 13. Qb1+ Kc3 14. Qxe4) 13. e3 $1 Re7 (13... Ke5 14. Qc5+ Qd5 15. Qe7+ Kf5 16. Qh7+) 14. Rh6) 10... Kc4 (10... Ke4 {např} 11. Rf6) 11. Qc1+ $1 Kb3 12. Qb1+ $1 Kc3 13. Rc6+ $1 Qxc6 14. Qc1+ {se ziskem dámy}) (5... Ka6 6. bxc5 $1 b5 (6... Rd8 7. Ra2+ Kb5 8. Qa4+ Kxc5 9. Qa5+ b5 10. Rc2+ {se ziskem dámy}) 7. cxb6 axb6 8. Ra2+ Kb7 9. Qf3+ Qc6 10. Ra7+) 6. bxc5+ Kc6 7. Qa4+ Kc7 8. c6 $1 {Jádro studie} Qe7 $1 ( 8... Qe6 9. Qxa7 (9. Qa5+ Kb8 10. c7+ Ka8 11. Qd5 Qc8 12. Qc5 Rh8 13. Rc3 Rg8 14. Ra3 a6 15. Rd3)) (8... bxc6 9. Qxa7+ Kc8 10. Qb6 $1 ({stačí také} 10. Qa8+ Kc7 11. Qa5+ Kc8 12. Rb2 (12. Qa4 Kc7) 12... Qc7 13. Qf5+ Qd7 (13... Kd8 14. Rd2+ Ke7 15. Qh7+) 14. Rb8+ Kc7 15. Rb7+) 10... Re6 11. Rb2 $1 Qc7 (11... Qd5 12. Qb8+ Kd7 13. Rb7#) 12. Qa6+ Kd8 13. Qa8+) 9. cxb7+ (9. Qxa7 $2 Qb4+ $11 (9... Qh4+ $11)) (9. Qf4+ $2 Kc8 10. cxb7+ Kxb7 11. Rb2+ Ka8 12. Qf3+ Qe4) 9... Kb8 $1 {Zdá se, že se černému podařilo ukrýt krále a bílý útok skončil.} (9... Kxb7 10. Qc6+ Kb8 11. Rb2+) 10. Rc8+ $1 {Blesk z čistého nebe! Tenhle motiv měl J. Fritz v nekorektní studii (bylo tam vedlejší řešení)} Rxc8 11. Qxa7+ $1 Kxa7 12. bxc8=N+ 1-0
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.12"] [Round ""] [White "Sergey Osintsev"] [Black "1st HM"] [Result "1/2-1/2"] [SetUp "1"] [FEN "R7/3r4/5P1R/5k1N/8/3p3p/6p1/1K6 w - - 0 1"] [PlyCount "39"] [EventDate "2025"] 1. Ra5+ ({Early} 1. Ng3+ $2 Kf4 $1 $19 {Position A1 with wRa8 - defeat} ({No} 1... Kg5 $2 2. Rg8+ Kxh6 3. Nf5+ Kh7 4. Ne7 $1 h2 5. Rg7+ Kh6 6. Nf5+ Kh5 7. Ng3+ Kh4 8. Nf5+ $11 {perpetual check})) 1... Ke4 2. Ng3+ Ke3 3. Re5+ Kf4 { Position A with wRe5 - there is a move 4.Rf5+} 4. Rf5+ $1 Kxg3 5. Rg6+ (5. Rg5+ $2 Kf4 $1 6. Rhh5 d2 $19) 5... Kh4 (5... Kh2 6. Kc1 $1 d2+ 7. Kd1 $11) 6. f7 ({ Try} 6. Rfg5 $2 Rd4 $1 (6... h2 $2 7. Rg4+ Kh3 8. Rg3+ Kh4 9. R3g4+ $1 Kh5 10. R4g5+ $1 $11 {perpetual check}) 7. Rxg2 (7. Kc1 d2+ $1 8. Kd1 h2 9. Rxg2 h1=Q+ 10. Rg1 Qf3+ $19) 7... hxg2 8. Rxg2 d2 $19 {Echo chameleon position B}) ({Try} 6. Rf4+ $2 Kh5 7. Rfg4 Rd5 $1 (7... h2 $2 8. R4g5+ $1 $11 {perpetual check}) 8. Rxg2 hxg2 9. Rxg2 d2 $19 {Echo chameleon position B1}) (6. Kc1 $2 d2+ 7. Kd1 h2 $19) 6... d2 7. Rf4+ ({Thematic try} 7. Rh6+ $2 Kg3 8. Rf3+ $1 Kh2 $1 {The Black King has escaped pursuit!} 9. Rhxh3+ Kg1 10. f8=Q (10. Rd3 d1=Q+ 11. Rxd1+ Rxd1+ 12. Kc2 Rf1 $19) 10... d1=Q+ 11. Kb2 Rb7+ 12. Rb3 Qe2+ $19) (7. f8=Q $2 d1=Q+ $19) 7... Kh5 8. Rh6+ $1 Kg5 $1 9. Rf5+ $1 Kg4 $1 10. Rg6+ $1 ( 10. Rf4+ $6 Kg3 $1 11. Rf3+ $1 Kh2 $1) 10... Kh4 11. Rf4+ Kh5 12. Rh6+ Kg5 13. Rf5+ Kg4 14. Rg6+ {The Black King moves counterclockwise along the squares h4-h5-g5-g4-h4. The White Rooks alternately attack the King on the f4-f5 and h6-g6 squares. Perpetual check?} Kxf5 $5 15. f8=Q+ Kxg6 16. Qg8+ $1 ({Thematic try} 16. Qe8+ $2 Rf7 17. Qg8+ ({or} 17. Qe6+ Kg5 $1 18. Qd5+ Kg4 19. Qd4+ Rf4 $1 $19) 17... Kh6 $1 18. Qh8+ Kg5 19. Qe5+ Kg4 20. Qd4+ Rf4 $1 21. Qg7+ Kh4 22. Qh6+ (22. Kc2 d1=Q+ 23. Kxd1 Rf1+ 24. Ke2 g1=Q $19) 22... Kg3 23. Qg5+ Kh2 $3 24. Qxf4+ Kh1 {The Black King has escaped pursuit!} 25. Kc2 g1=Q $19) 16... Kf5 17. Qf8+ Ke4 18. Qe8+ Kf3 19. Qh5+ $1 ({Thematic try} 19. Qf8+ $2 Ke2 $1 ({No} 19... Kg3 $2 20. Qb8+ $1 Kf3 21. Qb3+ $1 Kf4 22. Qb8+ Kf3 23. Qb3+ Ke2 (23... Kf2 24. Qb6+) 24. Qe6+ $1 Kf1 25. Qf5+ Kg1 26. Qxd7 Kh2 27. Qxd2 Kh1 28. Qd5 $1 $11) ({No} 19... Ke3 $2 20. Qh6+ $1 Kf2 21. Qb6+ $1 Kf1 22. Qb5+ $1 Ke1 23. Qe5+ $1 Kd1 24. Qh5+ $1 Ke1 25. Qe5+ $11 {perpetual check}) 20. Qe8+ Kf2 21. Qf8+ Kg1 22. Qc5+ Kh1 $19 {The Black King has escaped pursuit!}) 19... Kg3 ( 19... Kf4 20. Qh4+ $1 $11) 20. Qe5+ $1 $11 {perpetual check} 1/2-1/2
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.03"] [Round ""] [White "Pavel Arestov and Alexander Zhukov"] [Black "2rd HM"] [Result "1-0"] [SetUp "1"] [FEN "8/1p3k2/7B/P7/1P6/8/8/2K3n1 w - - 0 1"] [PlyCount "23"] [EventDate "2025"] 1. Be3 $1 (1. b5 $2 Ne2+ $1 2. Kd2 Nd4 3. a6 bxa6 4. bxa6 Nb5 {/Nc6=}) 1... Ne2+ (1... Nf3 2. b5 Ne5 3. Bd4 $1 $18) 2. Kd2 Ng3 3. Bf4 $1 (3. Kd3 $2 Ke6 $1 4. Kc4 Nh5 $1 5. Kb5 Kd7 6. Kb6 Kc8 7. Ka7 Nf6 8. b5 Nd5 $1 9. Bb6 Nc3 $1 $11) (3. b5 $2 Ne4+ $1 4. Kd3 Nd6 5. a6 bxa6 6. bxa6 Nc8 $1 $11) 3... Ne4+ 4. Kd3 (4. Ke3 $2 Nc3 $1 {or Kd3} 5. Kd4 {/Nd5=} Ne2+ $11) 4... Nf6 (4... Nf2+ 5. Kc4 (5. Kd4)) 5. Kd4 $1 {TRy} (5. Kc4 $2 Ke6 $1 6. b5 Nd5 7. a6 bxa6 8. bxa6 Nxf4 $1 9. a7 Nd5 $1 10. a8=Q Nb6+ 11. Kb5 Nxa8 $11) 5... Ke6 6. b5 Nd5 $1 ( 6... Kd7 7. Be5 $1 Ng4 8. Bg3 Nf6 9. Kc5 Kc8 10. Kb6 Nd7+ 11. Ka7 Nc5 12. Bf4 { /h2} Ne6 13. Be5 Nd8 14. Bf6 Ne6 15. b6 Nc5 16. Ka8 Na4 17. Bd4 {/e7}) 7. Be5 $1 {Try} (7. Bg3 $2 {/h2?} Nb6 $3 8. a6 $5 (8. axb6 $11) 8... bxa6 9. bxa6 Kd7 10. Kc5 Na4+ 11. Kb5 Nc3+ 12. Kc5 Na4+ $1 13. Kb5 Nc3+ 14. Kc5 Na4+ $11 (14... Ne4+ $2 15. Kb6 $1 $18)) 7... Nb6 $1 8. a6 $1 (8. axb6 $2 Kd7 $11) 8... bxa6 9. bxa6 Kd7 (9... Nc8 10. Bb8 $1 Kd7 11. Kc5 Kd8 12. Kc6 $18) 10. Kc5 Na4+ (10... Nc8 11. Bb8) 11. Kb5 (11. Kd5 $2 Nb6+ 12. Kc5 Na4+ 13. Kb5) 11... Nc3+ $5 12. Bxc3 $18 {12...Kc7 13.Be5+} 1-0
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[Event "Cescoslovensky Sach"] [Site ""] [Date "2025.10"] [Round ""] [White "Michael Pasman"] [Black "3rd HM"] [Result "1-0"] [SetUp "1"] [FEN "2rk4/2p3p1/2K3b1/P7/8/8/1p2B3/4R1B1 w - - 0 1"] [PlyCount "25"] [EventDate "2025"] 1. Bd3 $1 Bxd3 2. Bf2 $1 (2. Be3 Be4+) 2... g5 (2... Bb5+ 3. Kxb5 b1=Q+ 4. Rxb1 Rb8+ 5. Bb6 $1 $18) 3. Bd4 $1 Bb5+ $1 4. Kxb5 b1=Q+ $1 (4... Rb8+ 5. Kc6 b1=Q 6. Bf6+ Kc8 7. Re8#) 5. Rxb1 Rb8+ 6. Bb6 $1 cxb6 (6... Kd7 7. Ka6 $1 (7. Rd1+ Ke6 8. Kc6 cxb6 $11) (7. Rg1 cxb6 $11) 7... cxb6 8. Ka7 $1 Rg8 9. axb6 Ke6 10. Rb5 $1 $18 {cutting the black king} g4 11. b7) 7. a6 $1 (7. axb6 $2 Kd7 8. Ka6 Ra8+ $1 $11) 7... Kc7 (7... Ra8 8. Rh1 Kc7 9. Rh7+ $18) 8. Rc1+ $1 (8. a7 $2 Rf8 9. Rf1 (9. Ka6 b5 $1 10. Rxb5 Rf6+ $1 11. Ka5 Rf1 $11 {Activating the rook and drawing}) 9... Rxf1 10. a8=Q Rf5+ $11) 8... Kd6 9. Re1 $1 {Cutting the black king and threatening a7} (9. Rc6+ Ke5 $1 $11) 9... Ra8 10. Re4 $1 { zz Mutual zugzwang If white to move now - then on Kxb6 black answers Rb8+ and Ra1} (10. Kxb6 $2 Rb8+ $11) (10. Re3 $2 g4 11. Re4 Rg8 $1 $11) 10... Kc7 (10... Rc8 11. a7 Ra8 12. Kxb6 $18) 11. Re7+ Kd6 12. Rg7 Ke6 13. Rxg5 1-0
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[Event "Cescoslovensky Sach"] [Site ""] [Date "2025.11"] [Round ""] [White "Michael Pasman"] [Black "1st spec. HM"] [Result "1-0"] [SetUp "1"] [FEN "2b2Q2/4PPB1/5RP1/6k1/2q5/6K1/6p1/8 w - - 0 1"] [PlyCount "21"] [EventDate "2025"] 1. Rf5+ $3 {Vacation sacrifice} (1. Bh6+ Kh5 $1 $11) 1... Bxf5 (1... Kxf5 2. Qxc8+ $1 Qxc8 3. f8=Q+ $18) 2. Bf6+ $1 Kxf6 3. e8=N+ $1 Kg5 4. Qe7+ Kh5 5. Ng7+ $1 (5. Kxg2 Be4+ $11) ({Thematic try :} 5. Nf6+ $2 Kxg6 6. f8=N+ Kh6 $1 7. Qe3+ Kg7 $11) 5... Kh6 ({Thematic line:} 5... Kxg6 6. f8=N+ $1 $18) 6. Nxf5+ Kxg6 7. Nh4+ $1 ({Thematic try :} 7. f8=N+ $2 Kxf5) 7... Qxh4+ $1 8. Kxh4 g1=Q {Phoenix } 9. f8=N+ $1 (9. f8=Q $2 Qg4+ 10. Kxg4 {stalemate}) (9. f8=R $2 Qh2+ 10. Kg4 Qg2+ 11. Kf4 Qf2+ 12. Ke5 Qe3+ 13. Kd6 Qa3+ 14. Kd7 Qa4+ 15. Kc8 Qa8+ $11) 9... Kf5 10. Qe6+ Kf4 11. Ng6+ $18 {winning} (11. Ng6+ Kf3 {e.g} 12. Qf5+ Kg2 13. Nf4+ Kh1 14. Qe4+ Kh2 15. Qe2+ Kh1 16. Qf3+ Kh2 17. Qh3#) 1-0
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[Event "Cescoslovensky Sach"] [Site ""] [Date "2025.03"] [Round ""] [White "Vlasak,Emil and Polasek,Jaroslav"] [Black "2nd spec.HM"] [Result "1-0"] [SetUp "1"] [FEN "1r6/4r2p/7k/5P2/1N4PK/8/1NB5/8 w - - 0 1"] [PlyCount "11"] [EventDate "2014"] 1. f6 $1 {Hrozí 2.g5 mat.} (1. g5+ $2 Kg7 2. f6+ Kf7 $1 3. Bb3+ Ke8 $1 (3... Kg6 $2 4. fxe7 Rxb4+ 5. Bc4 $1) 4. Ba4+ Kf7) 1... Rg7 $1 ({Po} 1... Re5 { dostane černý vidličku} 2. Nc6 {, např.} Rxb2 ({nebo} 2... Rh5+ 3. gxh5 Rxb2 4. Ne5 Rb4+ 5. Kg3) 3. Nxe5 Rxc2 4. g5# {mat}) 2. fxg7 Rxb4 {Další průběh znáte z D1 z minulého čísla.} 3. g8=B $3 (3. Nd3 $2 Rb8) (3. g8=Q $2 Rxg4+ 4. Qxg4 {pat}) (3. g8=R Rxg4+ 4. Rxg4 {pat}) (3. g8=N+ $6 Kg7 4. Nd3 Rb7 $1 {bere jezdci ústupové pole e7} ({bílý mohl douvat v} 4... Rc4 $2 5. Bb1 $1 {Pěkný ústup} (5. Ne1 $2 Rc7 6. Bb3 Rb7 7. Be6 Rb6 {s věčným napadáním, např.} 8. Bd5 Rd6 9. Ne7 Kf6) 5... Kxg8 (5... Rc7 6. Ba2 Ra7 7. Bd5 Rd7 8. Nf4) 6. Ba2 $18) 5. Nc5 Rb5 $1 {musí kontrolovat pole f5 - uvidíme dále} 6. Nd7 ({nebo} 6. Ne4 {se stejným průběhem}) 6... Kxg8 7. Nf6+ Kg7 8. Nxh7 Rc5 $1 {s věčným napadáním střelce} 9. Bd3 Rd5 10. Be4 Re5 11. Bf5 Rxf5 12. gxf5 Kxh7 13. Kg5 Kg7 $11) 3... Rxb2 4. Bgb3 Kg7 5. Kg5 Kh8 6. Kf6 {a vyhraje, černý musí oslabit svého pěšce 1-0 (4) D1 Polasek, J original 2025 [Jara]} (6. Kf5 {vede jen k opakování pozice} Kg7 7. Kg5 Kh8) (6. Kh6 $2 Rxb3 7. Bxb3 {pat}) 1-0
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.07"] [Round ""] [White "Arkadij Vorovič"] [Black "spec. 3rd HM"] [Result "1-0"] [SetUp "1"] [FEN "1BR3K1/2p5/8/1P2p3/2kn1PP1/p7/1b6/8 w - - 0 1"] [PlyCount "17"] [EventDate "2025"] [SourceVersionDate "2025.05.25"] 1. b6 $1 (1. Rxc7+ $2 Kxb5 2. f5 a2 3. Ra7 a1=Q 4. Rxa1 Bxa1 5. Bxe5 Nxf5 $1 6. Bxa1 Nh6+ $11) (1. Bxc7 $2 Kxb5 2. Bxe5 Nc6 3. Ra8 Bxe5 4. fxe5 Nxe5 5. g5 Kb4 $11) 1... a2 (1... Nb5 2. Bxc7 a2 3. Ra8 a1=Q 4. Rxa1 Bxa1) 2. Rxc7+ Nc6 $1 (2... Kd5 3. Ra7 a1=Q 4. Rxa1 Bxa1 5. Bxe5 Kc6 6. g5) (2... Kb3 3. Ra7 exf4 (3... Ba3 4. Bxe5 a1=Q 5. b7 $18) 4. Bxf4 Nc6 5. Rxa2 Kxa2 6. b7) 3. Rxc6+ Kb5 (3... Kd3 4. Rc1 Bxc1 5. Bxe5 (5. b7 Bxf4 $11)) 4. Rc1 $1 Bxc1 (4... exf4 5. b7 (5. Re1)) 5. Bxe5 Bxf4 $1 (5... Kxb6 $2 6. f5 $1 $16) 6. Bxf4 $3 (6. Bd4 $2 Kc6 $19) 6... a1=Q 7. b7 Qa2+ 8. Kf8 $1 Qa3+ 9. Ke8 $16 {asi V} 1-0
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[Event "Cescoslovensky Sach"] [Site ""] [Date "2025.03"] [Round ""] [White "Vlasak,Emil and Polasek,Jaroslav"] [Black "comm."] [Result "1-0"] [SetUp "1"] [FEN "1r6/5k2/8/P4p2/5p2/5P1R/8/2K5 w - - 0 1"] [PlyCount "17"] [EventDate "2025"] {Emil Vlasák měl geniální nápad, přidáním černého pěšce f5 vytvořil jednoznačný a originální závěr. Mně se podařilo dopracovat dva úvodní tahy a vy se již můžete těšit z pěkné studie. Zkuste si ji vyřešit sami.} 1. Rh2 $1 (1. Rh6 $2 {vyvrací} Rb3 $1 2. a6 Kg7) ({Svůdné} 1. a6 $6 {nevychází pro} Kg6 $1 2. Rh2 Ra8 3. Ra2 Kg5 4. Kd2 Kh4 $1 5. Ra3 Kg3 {a bílý král nepřejde přes třetí řadu}) 1... Rb3 $1 ({Teď už} 1... Kg6 {nestačí pro} 2. Ra2 Kg5 3. Ra4 $1 {a černý král se včas nedostane na g3} Kh4 4. Rxf4+ Kg3 5. Rxf5) 2. a6 (2. Ra2 $2 {Po} Rxf3 3. a6 $2 {by bílý dokonce prohrál:} Rf1+ 4. Kb2 Rf2+ 5. Kb3 Rxa2 6. Kxa2 f3 7. a7 f2 8. a8=Q f1=Q $19) 2... Ra3 ({Výhru po} 2... Rxf3 {už známe:} 3. Rh8 Ra3 4. a7 Rxa7 5. Rh7+) {Až teď může jít věž na h6 a odříznout černého krále.} 3. Rh6 Kg7 4. Kb2 $1 (4. Rb6 $2 Rxf3 5. Kb2 Rf2+ $1 $11 6. Kb3 Rf1 7. Rb7+ Kf6 8. Ka2 Rf2+) 4... Rxf3 5. Rh8 $1 {a vyhraje např.} ({Nestačí} 5. a7 $2 Rf2+ $1 6. Kb1 Rf1+ $1 7. Kb2 Rf2+ 8. Kb3 Kxh6 $1 9. a8=Q Kg5 $11 {/Kh5=} 10. Qa7 Re2 $1 11. Qg1+ Kh4 $1 12. Qf1 Re3+ $1 13. Kc2 (13. Kc4 Kg4 $1) 13... Kg3 $1) ({, ani} 5. Rh7+ Kxh7 6. a7 Rf2+ $1 {s podobnou remízou.}) 5... Rf2+ 6. Kb3 $1 (6. Ka3 Kxh8 7. a7 Kh7 8. a8=Q Kg6) 6... Kxh8 7. a7 Kg7 8. a8=Q $18 Kg6 9. Qa7 {a černý nestačí vybudovat pevnost.} 1-0
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.05"] [Round ""] [White "Stanislav Nosek"] [Black "comm."] [Result "1-0"] [SetUp "1"] [FEN "k2K4/5q2/1n1b4/6P1/8/3Q4/2P5/6B1 w - - 0 1"] [PlyCount "15"] [EventDate "2025"] 1. Qa6+ $1 {Try} (1. Qxd6 $2 Qg8+ 2. Kc7 Qc8+ $1 3. Kxb6 Qc7+ $1 4. Kxc7 {/or} (4. Qxc7 {stalemate})) (1. Bxb6 $2 Qe7+ 2. Kc8 Qe8+ 3. Bd8 Qe6#) (1. Qe4+ $2 Qb7 2. Qxb7+ Kxb7 $11) 1... Qa7 2. Qxa7+ (2. Qxb6 $4 Qe7+ 3. Kc8 Qe8+ 4. Qd8 Qc6+ 5. Qc7 Qxc7#) 2... Kxa7 3. g6 $1 (3. Bd4 $2 Kb7 4. g6 Bf8 5. Ke8 Bh6 $11 6. Kf7 Nd5 7. c4 Nf4 8. Be3 Nxg6 9. Bxh6 Ne5+ 10. Ke6 Nxc4) (3. c4 $2 Kb7 4. c5 Bf4 5. g6 Nd5 6. Bd4 Bh6 $11) (3. c3 $2 Kb7 4. Bd4 Bf4 5. g6 Bh6 $11) 3... Be5 4. c3 $3 (4. Ke7 $2 Kb7 5. Ke6 Bc3 $11) 4... Kb7 $1 (4... Bxc3 5. Kc7 Ka6 6. Bxb6 $18) 5. Bd4 Bxd4 (5... Nc4 6. Kd7 {or /Ke7} (6. Bxe5 Nxe5 7. g7 Nf7+ 8. Ke7 Nh6 $11) 6... Bxd4 7. cxd4 Ne3 8. g7 Ng4 9. d5 $18) 6. cxd4 Nd5 7. g7 (7. Ke8 $2 Nf4 8. g7 Nh5 9. g8=Q Nf6+ $11) 7... Nf6 8. d5 $1 $18 (8. Ke7 $2 Ng8+ 9. Kd7 Nf6+ $1 10. Ke7 Ng8+ $11) 1-0
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[Event "Ceskoslovenky Sach"] [Site ""] [Date "2025.08"] [Round ""] [White "Rainer Staudte and Michael Schlosser"] [Black "comm."] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/7p/8/1p2p3/8/8/3P1P1k/K7 w - - 0 1"] [PlyCount "32"] [EventDate "2025"] 1. d4 {creates an advanced pawn for counterplay} exd4 2. f4 d3 3. Kb2 Kg2 4. f5 $1 (4. Kc3 $2 Kf3 $1 {wins. e. g.} 5. f5 Ke3 6. f6 d2 7. f7 d1=Q 8. f8=Q Qd4+ 9. Kc2 (9. Kb3 Kd2 10. Qh6+ Qe3+) 9... Qd3+ 10. Kb2 (10. Kc1 Qd2+ 11. Kb1 Qe1+ 12. Ka2 Qf2+) 10... Qe2+ 11. Kb3 h5) 4... Kf1 {or Kf2} (4... d2 5. Kc2 $1) 5. f6 d2 6. f7 d1=Q 7. f8=Q+ Ke1 {This quiet place avoids check and keeps both pawns.} 8. Qg7 $1 (8. Qb4+ $2 Qd2+ $1 $19 {cross check}) (8. Qe7+ $2 {or Qe8+?} Qe2+ $1 $19 {cross check}) 8... Qd3 {guards the pawns} (8... h5 9. Qg1+ Ke2 ( 9... Kd2 10. Qg5+ $1) 10. Qh2+ $1 Kd3 (10... Ke3 11. Qe5+ $1 {loses a pawn}) 11. Qd6+ $1 Ke2 12. Qh2+ {perpetual check}) (8... Qe2+ 9. Ka3 $1 Qd3+ (9... h5 10. Qg3+ $1 {see mainline}) 10. Kb4 Qc4+ 11. Ka5 Qa4+ 12. Kb6 {loses a pawn}) 9. Qg1+ (9. Qe5+ $2 Qe2+ $1 $19 {cross check}) 9... Qf1 10. Qg7 Qe2+ (10... h5 11. Qc3+ $1 {wins a pawn}) 11. Ka3 $1 {prepares counterplay against the b-pawn} h5 {excludes Kb4} (11... Qd3+ {or Qd3+ or Qf3+} 12. Kb4 $1) 12. Qg3+ $1 (12. Qg1+ $2 Kd2 $1 {a quiet place}) 12... Kf1 (12... Kd1 13. Qb3+ $1 Kd2 (13... Kc1 14. Qc3+ $1 Kd1 (14... Kb1 15. Qb3+ Kc1 (15... Ka1 16. Qc3+ $1 Kb1 17. Qb3+ { repetition}) 16. Qc3+ $1 {repetition}) 15. Qb3+ {repetition} Kd2) (13... Ke1 14. Qg3+ {repeats the position}) 14. Qc3+ $1 Kxc3 {stalemate}) (12... Kd2 13. Qc3+ $1 Kxc3 {stalemate}) (12... Qf2 13. Qe5+ Kd2 14. Qc3+ Kd1 15. Qb3+ Qc2 ( 15... Kc1 16. Qc3+ $1 Kd1 17. Qb3+) 16. Qf3+ Kd2) 13. Qh3+ $1 (13. Qf4+ $2 { loses, e. g.} Kg2 (13... Qf2 14. Qd6 (14. Qc1+ Qe1 $1 15. Qf4+ (15. Qc5 Qa1+) 15... Kg2 {a quiet place}) 14... Qa7+ 15. Kb2 Qf7 16. Qd3+ Kg2 17. Qe4+ (17. Qxb5 Qf2+)) 14. Qg5+ Qg4 15. Qxb5 (15. Qd2+ Kh3 16. Qd5 Qa4+ 17. Kb2 Qb4+ 18. Ka1 Qc3+ 19. Kb1 h4) 15... h4 $1 16. Qb2+ Kg3 17. Qb8+ Qf4 18. Qg8+ Kf2 19. Qa2+ Kg1 20. Qb1+ Kg2 21. Qc2+ Qf2 {finally found another quiet place}) { variation A:} 13... Kf2 (13... Kg1 14. Qg3+ $1 Qg2 (14... Kh1 15. Qh3+ $1) 15. Qe1+ Kh2 16. Kb4 $1 {The active white king forces the enemy queen into a passive position.} Qd5 {Perpetual check follows.}) ({variation B:} 13... Ke1 14. Qg3+ Kd1 15. Qb3+ Kd2 16. Qc3+ Kxc3 {stalemate again}) 14. Qh2+ $1 Ke3 ( 14... Kf3 15. Qxh5+) 15. Qe5+ $1 Kd2 (15... Kf3 16. Qxh5+) (15... Kd3 16. Qxb5+ ) (15... Kf2 16. Qh2+ $1 {repeats the position}) 16. Qc3+ $1 Kxc3 (16... Kd1 { allows perpetual check, e. g.} 17. Qa1+ Kc2 (17... Kd2 18. Qc3+) 18. Qc3+ Kb1 19. Qb3+ Ka1 20. Qc3+ $1 Kb1 21. Qb3+ Kc1 22. Qc3+ Qc2 23. Qe1+ $1 Qd1 24. Qc3+ Qc2 (24... Kb1 $2 25. Qb2#) 25. Qe1+) 1/2-1/2
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[Event "Ceskoslovensky sach"] [Site ""] [Date "2025.06"] [Round ""] [White "Peter Boll and Vladislav Tarasiuk"] [Black "spec. comm."] [Result "1/2-1/2"] [SetUp "1"] [FEN "7b/p7/8/8/kN6/2p5/8/KR1b4 w - - 0 1"] [PlyCount "25"] [EventDate "2025"] 1. Ka2 (1. Rxd1 $2 c2+ $19) 1... c2 2. Nxc2 Bxc2 3. Rb7 $1 {Try} (3. Rb4+ $2 Ka5 $1 4. Rh4 Bg7 $1 $19 (4... Bf6 $2 5. Rh5+ $1 Kb4 (5... Ka4 6. Rh6 $1 Bb3+ 7. Kb1 Bd4 (7... Bc3 8. Ra6+ Kb4 9. Rxa7 $11) 8. Rh4) 6. Rh7 $1 a5 (6... Bxh7 { stalemate}) 7. Rb7+ Ka4 (7... Kc4 8. Rc7+ $11 Kd3 9. Ka3 Bc3 10. Rxc3+ $1) 8. Rb4+ $1 Kxb4 {stalemate})) 3... a6 (3... a5 4. Rb4+ $1 axb4 {stalemate}) 4. Rb4+ $1 Ka5 $1 (4... Kxb4 {stalemate}) 5. Rb8 {The pursuit of the black bishop by the white rook begins. Black cannot lose this bishop, as it will immediately result in a theoretical draw.} Bg7 6. Rg8 $1 (6. Rb7 $2 Bh6) 6... Bf6 (6... Bc3 7. Rc8 Kb4 8. Rxc3 $1 $11) (6... Bh6 7. Rh8 Bg7 8. Rg8) 7. Rf8 Bd4 8. Rd8 $1 Be3 9. Re8 Bg1 10. Rg8 Ba7 11. Ra8 $1 {The white rook is the master of the 8th rank.} Bb6 12. Rb8 Bd4 13. Rd8 {positional draw.} 1/2-1/2
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