www.arves.org - Nosek 70 JT

Studies awarded for the 70 birthday jubilee tournament for Stanislav Nosek

Ceskoslovensky Sach 2023 tournament.

(about Nosek, Stanislav 1952)

[Event "1.p Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Pasman=M"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1K4R1/8/5nP1/1k3P2/n7/8/N6r/8 w - - 0 1"] [PlyCount "23"] [EventDate "2023"] 
 1. Rf8 $1 (1. Rd8 Rxa2) 1... Nd7+ (1... Rxa2 2. Rxf6) 2. Kc8 $1 (2. Kc7 $2 Nxf8 3. g7 Rh7 $1 $19) 2... Nxf8 (2... Nab6+ 3. Kd8 Nxf8 (3... Rxa2 4. g7) 4. Nc3+ Kc6 (4... Kb4 5. g7 Rd2+ 6. Ke7 Nc8+ 7. Kxf8 Rd8+ 8. Kf7) 5. g7 Rd2+ (5... Ne6+ 6. fxe6) 6. Ke7 $11 Nc8+ 7. Kxf8 Rd8+ 8. Kf7) 3. Nc3+ $1 ({Thematic try :} 3. g7 Nb6+ $1 4. Kd8 (4. Kb7 Rh7) 4... Ne6+ $1 5. fxe6 Rxa2 6. g8=Q Ra8+ 7. Ke7 Rxg8 8. Kf7 Rc8 $1 (8... Rb8 9. e7 Rb7 10. Ke6) 9. e7 Rc7 10. Ke6 Rc6+ $19) 3... Nxc3 4. g7 Ng6 $1 5. f6 $3 (5. fxg6 Nd5 $19) 5... Nd5 6. f7 (6. g8=Q Nge7+ (6... Nde7+)) 6... Nde7+ (6... Rc2+ 7. Kb8 Ne5 8. f8=Q $1 Nd7+ 9. Ka8 N5b6+ 10. Kb7 $11) 7. Kd7 Rh7 $1 8. f8=Q (8. g8=Q $2 Nxg8 $19) 8... Nxf8+ 9. gxf8=N $3 { Phoenix} (9. gxf8=Q $2 Ng6+ $19) 9... Rg7 10. Ne6 Rf7 11. Ke8 Rh7 12. Nf8 1/2-1/2

[Event "2/3.p Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Hlinka=M Kekely=L Arestov=P"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1Bb1r3/8/5P2/4P2r/8/3N4/4KpN1/7k w - - 0 1"] [PlyCount "14"] [EventDate "2023"] 
 1. Ngf4 (1. Kxf2 $2 Rf5+ 2. Ndf4 Bb7 $19) (1. f7 $2 Bg4+ 2. Kxf2 Rxb8 $19) 1... f1=Q+ (1... Kg1 2. Nxf2 Rf5 3. N2h3+ Kh2 4. Kf3 Bb7+ 5. Kg4 $11) 2. Kxf1 Rf5 3. f7 $1 (3. Ke1 $2 Rxf6 4. Nf2+ Kh2 5. e6 Bxe6 6. Nd5+ Rxb8 7. Nxf6 Kg2 $19) (3. Ba7 $2 Ba6 4. Ke1 Bxd3 5. Nxd3 Rxf6 $19) (3. Bd6 $2 Ba6 4. Ke1 Bxd3 5. Nxd3 Rxf6 6. Bc5 Kg2 $19) 3... Rxf7 4. Nf2+ (4. Bd6 $2 Ba6 $19 {as after 3.Bd6?}) ( 4. e6 $2 Rxf4+ 5. Bxf4 Ba6 6. Ke2 Rd8 $19) 4... Kh2 5. e6 $1 (5. N4d3 $2 Bh3+ 6. Ke2 Rxb8 $19) 5... Bxe6 (5... Rb7 6. Be5 Rb1+ 7. Ke2 Ba6+ 8. Ke3 Re1+ 9. Kd4 $11) 6. Be5 $1 (6. Bd6 $2 Rd7 $1 7. Be5 Bc4+ $1 8. Ne2+ Rxe5 9. Ng4+ Kh3 10. Nxe5 Bxe2+ 11. Kxe2 Re7 $19 {pin}) 6... Bc4+ {main A} (6... Bh3+ {main B} 7. Ng2+ Rxe5 {double pin stalemate}) (6... Kg3 7. Nxe6+ Kh4 8. Nf4 $1 {switchback} Rxe5 9. Ng6+ {fork} Kg3 10. Nxe5 Rxf2+ 11. Ke1 $11) 7. N4d3+ Rxe5 {ideal double oin stalemate. Synthesis of double pin stalemates. All pieces in final positions moved.} 1/2-1/2

[Event "2/3.p Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Korostenski=F Polasek=J"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/5p2/K4p2/4kp2/7p/5PP1/5P2/8 w - - 0 1"] [PlyCount "49"] [EventDate "2023"] 
 1. f4+ (1. gxh4 $2 f4 $1 2. Kb5 Kf5 3. Kc5 Kg6 4. Kd5 Kh5 5. Ke4 Kxh4 6. Kxf4 Kh3 $1 7. Kf5 Kg2 $11) 1... Ke4 $1 (1... Ke6 2. gxh4 Ke7 3. Kb6 Kf8 4. Kc5 Kg7 5. Kd6 Kh6 6. Ke7 (6. Z0)) 2. gxh4 Kxf4 3. f3 Kxf3 4. h5 f4 5. h6 Kg2 6. h7 f3 7. h8=Q f2 8. Qg8+ $1 (8. Qg7+ $2 Kf3 $1 $11 9. Qxf6+ Kg2 10. Qg5+ Kh2 11. Qh4+ Kg2 12. Qg4+ Kf1 $1 13. Kb5 f5 $1 $11 14. Qf3 (14. Qh3+ Ke2) 14... f4 (14... Ke1 15. Qe3+ Kf1 16. Kc4 Kg2 $11 (16... f4 $11)) (14... Kg1 $4 15. Qg3+ Kf1 16. Kc4 f4 17. Qh2 Ke1 18. Kc3 f1=Q 19. Qd2#) 15. Kc4 Kg1 16. Qg4+ Kh2 17. Qxf4+ Kg2 18. Qg4+ Kh2 19. Qf3 Kg1 20. Qg3+ Kh1 21. Qxf2) (8. Qa8+ Kg1 9. Qg8+) 8... Kh1 $1 (8... Kf3 9. Qa8+ Ke2 10. Qe4+) (8... Kh2 9. Qb8+ (9. Qh7+) 9... Kg2 10. Qb2 Kg1 11. Qd4) 9. Qh7+ $1 Kg1 $1 (9... Kg2 10. Qe4+) 10. Qg7+ $1 Kh2 11. Qh6+ $1 Kg1 (11... Kg2 12. Qd2 $1 Kg1 (12... f5 13. Kb5 (13. Ka5) 13... f4 14. Qd5+ $1 Kh2 15. Qf3 Kg1 16. Qg4+ Kf1 17. Kc4) 13. Qe3 (13. Qd4 f5 (13... Kg2 14. Qg4+) 14. Kb5 (14. Ka5) 14... f4 15. Qg7+ $1 (15. Kc4 $2 f5 $1 $11 16. Kd3 f3 $11) 15... Kh2 16. Qh6+ $1 (16. Qb2 Kg1 17. Qg7+) 16... Kg2 17. Qg5+ $1 Kf3 18. Qh5+)) 12. Qe3 f5 (12... Kg2 13. Qe4+ Kg1 14. Qg4+ Kh2 15. Qf3 Kg1 16. Qg3+ Kf1 17. Kb5 f5 18. Kc4 f4 19. Qh2 Ke1 20. Kc3 f1=Q 21. Qd2#) 13. Qg3+ $1 (13. Kb5 $2 f4 14. Qd4 f5 (14... f6 $11)) 13... Kf1 14. Kb5 $1 f4 (14... Ke2 15. Qe5+) 15. Qg7 (15. Qg5 f6) (15. Qg8 Ke1 16. Qe8+ Kd2 17. Qd7+ Ke2 18. Qg4+ Ke1 19. Qh4 Ke2 20. Qh5+ Kd2 21. Qd5+ Ke2 22. Qe5+) (15. Qxf4 $2 f5 $1) 15... Ke2 16. Qe5+ Kf3 17. Qh5+ Kg2 18. Qg4+ Kf1 19. Kc4 (19. Kb4 f5 20. Qg5 $1 Ke1 21. Qh4 $1 Ke2 22. Qh2 Kf3 23. Qh3+ Ke2 24. Qg2 Ke1 (24... f3 25. Qh2 Ke3 (25... Ke1 26. Qe5+ Kf1) 26. Qe5+ Kd2 27. Qf4+ Ke2 28. Kc3) 25. Kc3 f1=Q 26. Qd2#) 19... f5 (19... Ke1 20. Qh4 $1 Ke2 21. Qh2) 20. Qg6 (20. Qg7 Ke2 21. Qe5+ Kf3 22. Qd5+ $1) (20. Qg5 Ke2 21. Qe7+ Kf3 22. Qb7+ Ke2 23. Qg2) (20. Qg8) (20. Qxf5 Kg2 21. Qg4+ Kh2 22. Qf3 Kg1) 20... Ke2 21. Qe6+ Kf3 {(d2)} (21... Kd2 22. Qd5+ Ke2 (22... Ke1 23. Kc3) 23. Qd3+ Ke1 24. Kc3 f1=Q 25. Qd2#) 22. Qd5+ $1 Ke2 23. Qd3+ (23. Qg2 Ke1 24. Kc3 f3 (24... f1=Q 25. Qd2#) 25. Qh2 f4 26. Kc2 f1=Q 27. Qd2#) 23... Ke1 24. Kc3 f1=Q 25. Qd2# 1-0

[Event "6.p Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Babula=V Polasek=J"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/5p1k/R1p5/5P2/4K1P1/7r/8/8 w - - 0 1"] [PlyCount "27"] [EventDate "2023"] 
 1. Ra7 $1 Kg7 (1... Rh4 2. Kf4 $1 (2. Rxf7+ $2 Kg8) 2... Kg7 (2... Kg8 3. Kg5 Rh1 4. Ra8+ Kh7 5. Kf6) 3. Kg5 Rh1 4. f6+ Kg8 5. Ra8+ Kh7 6. Rf8 $18) (1... Kg8 2. Ke5 $1 Rg3 (2... Rd3 3. Kf6 Rd6+ 4. Ke7 $18 Rd1 5. Ra8+ Kg7 6. f6+ Kg6 7. Rg8+) 3. Kf6 Rxg4 4. Ra8+ Kh7 5. Kxf7 $18 c5 (5... Rg7+ 6. Ke6) 6. f6 Rb4 7. Kf8 (7. Ke6 Rb6+ 8. Kf5 $1 Rb7 9. Re8 Rf7 10. Re7 Kg8 11. Kg6 Rf8 12. Rg7+ Kh8 13. f7) 7... Rb6 8. f7 Rb7 9. Ke8) 2. g5 Rh8 (2... Kg8 3. Ra8+ (3. Ke5) 3... Kg7 4. f6+) 3. Kf4 $1 (3. g6 $2 Rf8 $1 4. Ke5 (4. Kf4 Kf6) 4... c5 $1 5. Re7 c4 $1 $11 6. gxf7 Rxf7 (6... Ra8 7. Re8 Ra5+) 7. Ke6 Rxe7+ 8. Kxe7 c3) (3. Rc7 $2 Re8+ 4. Kf4 Kg8 $11) 3... Rf8 (3... Rc8 4. g6 Rf8 5. Kg5) 4. Rc7 $1 (4. g6 $2 Kf6 $1 $11) 4... Kg8 (4... c5 5. g6 $1) (4... Z0 5. g6 (5. Kg4 c5 6. Rxc5 (6. g6 Kh6) 6... Ra8) (5. Ke5 c5 (5... Re8+)) 5... Kh6 6. gxf7 Kg7 7. Kg5 Rxf7 8. f6+ Kg8 9. Rxc6 Ra7 10. Kg6 Rg7+ 11. fxg7) 5. Ke5 (5. f6 $2 Ra8 6. g6 fxg6 7. Kg5 Ra1) 5... Kg7 (5... Rd8 6. Kf6 Rd6+ 7. Ke7 $18) (5... f6+ 6. Ke6 $1 (6. gxf6 $2 Re8+ 7. Re7 Kf8 $1) 6... fxg5 7. f6 g4 8. Rg7+) (5... c5 6. Kf6 $1 Ra8 7. Rc6 $1 c4 8. g6 $1 fxg6 (8... c3 9. gxf7+ (9. Rxc3 $2 Ra6+ 10. Kg5 fxg6 11. f6 Ra1 $11) (9. Kg5 fxg6 10. Kxg6) 9... Kf8 (9... Kh7 10. Kg5 Kg7 11. f8=Q+ $1) 10. Kg6 $1 c2 11. f6 $1 (11. Rxc2 $2 Ra6+ 12. f6 Rxf6+)) 9. Kxg6 $18) (5... Ra8 6. Kf6 c5 7. Rc6 $1) 6. g6 c5 (6... Re8+ 7. Kf4 Rf8 8. Kg5) 7. Kf4 $1 Kh6 (7... Kf6 8. Rc6+ Kg7 9. Kg5 fxg6 (9... f6+ 10. Kg4) 10. f6+ Kf7 11. Rxc5) 8. gxf7 Kg7 (8... Ra8 9. f6 $1 Kg6 10. Ke5 c4 11. Ke6 $18) 9. Kg5 Rxf7 10. f6+ Kg8 11. Rc6 $3 (11. Rc8+ $2 Rf8) (11. Rxc5 $2 Ra7 12. Kg6 Rg7+ 13. fxg7) 11... Kh7 ( 11... Ra7 12. Kg6 Rg7+) 12. Re6 $1 c4 13. Re7 $1 Kg8 14. Kg6 1-0

[Event "sp.p Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Tkachenko=SN"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1bk2n2/6n1/5K2/2PPPp2/4N3/8/8/8 w - - 0 1"] [PlyCount "21"] [EventDate "2023"] 
 1. Ng5 $1 (1. Nd2 $2 Ne8+ (1... Nh5+ 2. Kxf5 $1 Nd7 3. e6 $1 Nxc5 4. Kg6 Nf4+ 5. Kf7 Nxd5 6. e7) 2. Ke7 Nc7 3. d6 (3. Kxf8 Nxd5 4. Kf7 Kd7 5. e6+ Kd8 6. Nf3 f4 7. Ng5 Ne7 8. Nf3 Bc7 9. Kf8 Ba5 10. Kf7 Bc3 11. Kf8 Bb4 $19) 3... Nce6 4. c6 f4 5. Nf3 Ba7 6. Ng5 Bb6 7. d7+ Kc7 8. d8=Q+ Nxd8 9. Kxf8 Kxc6 $19) (1. Nc3 $2 Nd7+ 2. Kxg7 Bxe5+ $19) (1. e6 $2 Ngxe6 (1... Nfxe6 2. dxe6) 2. dxe6 fxe4 3. e7 Nh7+ 4. Kf7 Ng5+ 5. Kf8 Ne6+ 6. Kf7 Nc7) (1. Kxg7 Bxe5+ 2. Kxf8 fxe4) 1... Nh5+ $1 (1... Ne8+ 2. Ke7 Nc7 3. d6 Ng6+ 4. Kf6) (1... Nd7+ 2. Kxg7 Nxe5 3. Kf6 f4 4. d6 f3 5. Ne4 Nd3 6. c6 Nb4 (6... f2 7. Nxf2 Nxf2 8. Ke7) 7. Kf5 Ba7 8. d7+ Kc7 9. Ng5 f2 10. Ne6+ Kxc6 11. d8=Q f1=Q+ 12. Nf4 $11) 2. Kxf5 (2. Kf7 $2 Nd7 3. e6 Ne5+ 4. Ke7 Ba7 5. Kd6 Nd3 6. c6 $6 Bc5#) 2... Nd7 $1 3. c6 $1 (3. e6 $2 Nxc5 4. e7 Ng7+ 5. Kg6 Ne8 6. Kf7 Nd6+ 7. Kf8 Nd7+ (7... Nb5)) (3. Ne4 $2 Ng7+ 4. Kg6 Bxe5 $19) (3. d6 $2 Nxc5 4. e6 (4. Nf7 Kd7) 4... Bxd6 $19) 3... Nxe5 (3... Nc5 4. d6 $11) 4. c7 $3 (4. Ne4 $2 Nc4 $19) 4... Bxc7 5. d6 $1 Bxd6 (5... Bd8 6. Ne6 Bf6 7. Nf4 $1 $11) 6. Ne4 $1 Bb8 7. Kg5 $1 Ng7 $1 8. Kf6 Ne8+ 9. Ke7 Ng7 (9... Nc7 10. Nd6#) 10. Kf6 Nh5+ 11. Kg5 1/2-1/2

[Event "1.hm Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Arestov=P Hlinka=M"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "7b/8/6R1/8/8/3p4/2p4r/1RK1k3 w - - 0 1"] [PlyCount "26"] [EventDate "2023"] 
 1. Rg1+ Ke2 $1 (1... Kf2 2. Kd2 cxb1=Q 3. Rxb1 Rh3 4. Rb3 $11) 2. Rb3 $1 (2. Rb4 $2 Bg7) 2... Be5 $1 (2... Bf6 3. Rg2+ Rxg2 4. Rxd3) 3. Rg2+ $1 (3. Rxd3 $2 Kxd3 $19) 3... Rxg2 4. Rxd3 $1 Kf1 $1 (4... Kxd3 {stalemate}) 5. Rf3+ Kg1 6. Rf6 $1 {try} (6. Rf1+ $2 Kh2 7. Rh1+ Kg3 $19 8. Rh3+ Kg4 9. Rh4+ Kf5 10. Rh5+ Ke4) 6... Bc7 (6... Bxf6 {stalemate}) (6... Kh2 7. Rh6+ Kg1 8. Rh1+ Kxh1 {stalemate}) (6... Bb8 7. Kb2 Ba7 8. Rc6 $1 Bd4+ 9. Kb3 $11) (6... Bg3 7. Kb2 Bf2 8. Rc6) 7. Kb2 $1 Be5+ 8. Kc1 Bd4 (8... Bxf6 {stalemate}) 9. Rf1+ Kh2 (9... Kxf1 {stalemate}) 10. Rf3 $1 {try} (10. Rh1+ $2 Kg3 11. Rh3+ Kf4 $1 $19 12. Rh4+ Ke3 13. Rh3+ Ke4 14. Rh4+ Kd3 15. Rh3+ Be3+) 10... Re2 (10... Be5 11. Rh3+ Kg1 12. Rh1+ (12. Rh4 $2 Bd6 $1 $19) 12... Kxh1 {stalemate}) 11. Rh3+ $1 (11. Rf2+ $2 Bxf2 $19) 11... Kg1 12. Rh1+ (12. Rg3+ $2 Kf1 $1 13. Rf3+ Bf2) 12... Kg2 13. Rh2+ $1 Kxh2 {stalemate} 1/2-1/2

[Event "2.hm Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Sprenger=J"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/8/K4B1k/8/B4nP1/8/1N6/1r6 w - - 0 1"] [PlyCount "23"] [EventDate "2023"] 
 1. g5+ Kh5 2. Be8+ Kg4 3. g6 Re1 $1 (3... Nd5 4. Bd8 $1 {threatening g6-g7} Kf5 5. Bf7 Rxb2 6. g7 Rg2 7. g8=Q Rxg8 8. Bxg8 $18 {EGTB}) 4. Bd7+ Kf3 5. Nd3 $3 ({ thematic try} 5. Bc6+ $2 Ke2 $1 6. Bb5+ (6. g7 Rg1 7. Bb5+ Kf3 8. Nd3 Nh5 $1 { /Ne6}) 6... Kf3 7. Nd3 Re6+ 8. Ka5 Nxg6 $1 $10 (8... Rxf6 $2 9. g7 Rg6 10. Ne5+ )) 5... Nxd3 6. Bc6+ Kf4 $1 {Exploits that this square is vacant due to the Nd3 sacrifice.} (6... Ke3 $6 {loses quickly:} 7. Bg5+ Kd4 8. g7 $18) (6... Ke2 {shows the idea of 5. Nd3:} 7. g7 Rg1 8. Bb5 $1 {and the knight is pinned. Black has no defense against Bc4 followed by g8=Q.} (8. Bd5 $4 Nb4+) 8... Ke3 9. Bc4 $18) 7. Bg5+ $1 Kxg5 8. g7 Nc5+ (8... Nb4+ 9. Kb5 $1) 9. Kb6 $1 (9. Ka7 $2 Re7+) (9. Ka5 $2 Ra1+ 10. Kb6 Nd7+ $1 11. Bxd7 Ra8 $10) (9. Kb5 $2 Rb1+ 10. Kxc5 Rb8 $10) 9... Nd7+ $1 {stalemate counterplay} (9... Rb1+ 10. Ka7 Ra1+ 11. Kb8 Rb1+ 12. Kc8 $18) 10. Bxd7 Re8 11. Bxe8 Kh6 12. g8=R $1 {The last pointe.} (12. g8=Q $2 {stalemate}) (12. g8=B $2 {insufficient material}) (12. g8=N+ $2 Kg7 13. Ne7 Kf8 $10) 1-0

[Event "5.hm Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Gonzalez=L"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "b1K1R3/8/7p/8/8/r4k2/7B/7R b - - 0 1"] [PlyCount "44"] [EventDate "2023"] 
 1... Kg2 2. Ree1 Rh3 $1 (2... Kh3 3. Bd6+ Bxh1 4. Bxa3 $18) 3. Kb8 $1 ({ Thematic try:} 3. Reg1+ $2 Kf2 4. Rf1+ Kg2 $1 5. Kb8 Be4 $1 6. Re1 Rxh2 7. Rxh2+ Kxh2 8. Rxe4 Kg3 9. Re5 Kg4 10. Kc7 h5 11. Kd6 h4 $11) 3... Bd5 $1 (3... Rxh2 4. Rhg1+ Kh3 5. Kxa8 $18) 4. Rd1 $1 (4. Reg1+ $2 Kf2 5. Rf1+ Kg2 6. Rd1 { loss of time}) 4... Bf3 (4... Be4 5. Rhe1 $1 Bf3 6. Rd2+ $18) (4... Rxh2 5. Rxh2+ Kxh2 6. Rxd5 $18) 5. Rdg1+ $1 Kf2 6. Rf1+ Kg2 $1 (6... Ke2 7. Re1+ Kd3 8. Rhf1 $18) 7. Kc7 $1 Be4 $1 (7... Rxh2 8. Rhg1+ Kh3 9. Rxf3+ $18) 8. Re1 Ba8 $1 (8... h5 9. Kd6 $1 Rxh2 10. Rxh2+ Kxh2 11. Rxe4 Kg3 12. Ke5 $18) 9. Ra1 Bf3 ( 9... Be4 10. Rhe1 $1 $18) 10. Rag1+ $1 Kf2 11. Rf1+ Kg2 $1 12. Kd6 $1 Bb7 $1 ( 12... h5 13. Ke5 $1 Bg4 14. Rfg1+ Kf2 15. Bf4 $18) 13. Rb1 Ba8 14. Ra1 Bf3 ( 14... Bb7 15. Rhb1 $1 $18) 15. Rag1+ $1 Kf2 16. Rf1+ Kg2 $1 17. Ke5 $1 (17. Kc5 $2 Rh5+ 18. Kd4 Rh3 19. Ke5 {loss of time}) 17... Bc6 $1 (17... h5 18. Kf4 h4 19. Ra1 $1 Be2 20. Rhe1 $18) 18. Rc1 Bb7 19. Rb1 Ba8 20. Ra1 Bf3 (20... Bc6 21. Rhc1 $1 $18) 21. Kf4 $1 (21. Rag1+ $2 Kf2 22. Rf1+ Kg2 23. Kf4 {loss of time}) 21... Rh4+ 22. Ke3 Rh3 23. Rag1# 1-0

[Event "sp.hm Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Pasman=M"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1b4B1/PPPPPP2/4n1p1/4B1p1/b5P1/3p2Pk/7p/7K w - - 0 1"] [PlyCount "13"] [EventDate "2023"] 
 1. c8=R $1 (1. c8=Q $2 d2 2. d8=Q (2. d8=R Bd6 3. Rxd6 Nd4 4. Rxd4 d1=Q+ 5. Rxd1 Bxd1 6. f8=R Bf3+ 7. Rxf3 {stalemate}) 2... Bd6 3. Qxd6 Nd4 4. Qxd4 d1=Q+ 5. Qxd1 Bc6+ 6. Qxc6 {stalemate}) (1. cxb8=N $4 d2 2. d8=Q Bc2) (1. axb8=N $4 d2) 1... Nc7 $1 (1... d2 2. d8=R $1 (2. d8=Q $2 Bd6 $1 3. Qxd6 Nd4 4. Qxd4 d1=Q+ 5. Qxd1 Bc6+ 6. Rxc6 {stalemate}) 2... Bd6 3. Rxd6 $18) (1... Bc7 2. b8=N $1 d2 3. d8=R $1 $18) 2. Rxc7 (2. axb8=N $4 d2 3. d8=Q Bc2 $19) (2. d8=N $4 d2) 2... Bxc7 3. b8=N $1 (3. d8=N $2 d2) (3. d8=Q $2 Bc6+) 3... d2 4. d8=R $1 (4. d8=Q $2 Bd6 5. Qxd6 d1=Q+ 6. Qxd1 Bc6+ 7. Nxc6 {stalemate}) 4... Bxd8 (4... Bd6 5. Rxd6 d1=Q+ (5... Bd1 6. f8=R $1) (5... Bc2 6. a8=B $1) 6. Rxd1 Bxd1 7. f8=R $1 $18) 5. exd8=R $1 Bd1 (5... Bc2 6. a8=B $1) 6. f8=R $1 (6. f8=Q $2 Bf3+ 7. Qxf3 d1=Q+ 8. Rxd1 {stalemate}) 6... Bc2 7. a8=B $1 {Some improvement to Melnichenko(1982) study..The promotions takes place on 5 different squares (a8, b8,c8,d8,f8) instead of 4 squares in the source, and only 1 is made with capture instead of 2 in the source. In addition some promotion tries and some different promotions also in alternate lines} (7. a8=Q $2 d1=Q+ 8. Rxd1 Be4+ 9. Qxe4 {stalemate}) (7. Rf4 $2 d1=Q+ 8. Rxd1 Be4+ 9. Rxe4 {stalemate.}) 1-0

[Event "sp.hm Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Vlasak=E"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "2R5/kqN5/4n3/P7/6K1/8/NR4nb/8 w - - 0 1"] [PlyCount "21"] [EventDate "2023"] 
 1. Ra8+ (1. Rxb7+ $2 Kxb7 2. a6+ (2. Re8 Nxc7) (2. Rh8 Bxc7) 2... Kxc8 3. Nxe6 Ne3+ 4. Kf3 Nd5 $11) 1... Qxa8 2. Nxa8 Ne3+ 3. Kf3 $1 (3. Kh5 Be5 (3... Bd6) 4. Rb3 (4. Rb5 Bd4 5. Nb6 Ka6 6. Rb1 Kxa5) 4... Nc4 5. Rb4 (5. Rb5 Kxa8) 5... Nxa5 $11) 3... Be5 $1 (3... Bf4 4. Nb6 Nf5 (4... Ka6 5. Nb4+ Kb7 (5... Kxa5 6. Nc6+ Ka6 7. Nd7 Nc4 8. Rb4 Nd2+ 9. Ke2) 6. N6d5) 5. Nc8+ Ka8 6. Ke4 $18) 4. Rb6 $1 ( 4. Rb1 $5 Nc4 $1 5. Rb4 $1 (5. Rh1 Kxa8 6. Ke4 Nc7 7. Rc1 Nb5 8. Kd5 Nba3) (5. Ke4 Nd2+) 5... Nxa5 (5... Nd6 6. Nb6 $1 Nd4+ 7. Kg4 Nc6 $1 8. Ra4 Ka6 9. Nb4+ ( 9. Nc1 Kb5 10. Ra2 Nxa5 11. Nd7) 9... Nxb4 10. Rxb4 Kxa5 $11) (5... Nd2+ 6. Ke2 (6. Ke3 Bf4+) 6... Bd6 7. Ra4 Nb3 8. Nb6 Ka6 9. Nc4 Ned4+ 10. Kd1 Bc5 $11) 6. Nb6 $1 (6. Ra4 $2 Nd4+ 7. Ke4 Ndc6 8. Nb4 Kb7 9. Nxc6 Nxc6 $11 {EGTB}) 6... Nc6 7. Nc8+ (7. Rb1 Kb7 8. Nc4+ Kc7 9. Ke4) 7... Ka8 8. Rb6 Bc7 9. Rb1 Nc5 $11) (4. Rb4 Nd5 (4... Nd4+ 5. Ke4 Kxa8) (4... Nc2 5. Rc4 Ng5+) 5. Rb1 Kxa8 6. Ke4 Nc3+ 7. Nxc3 Bxc3 $11) (4. Rb3 Nd4+) (4. Rf2 Kxa8 5. Kxe3 Bd4+) 4... Nc2 $1 (4... Nf4 5. Rb5 (5. Rc6) (5. Rh6) 5... Nc4 (5... Ned5 6. Nb6 (6. Ke4 Bd6 7. Nb6 Nf6+ (7... Nxb6 8. Rxb6 Bc7 9. Rc6 Kb7 (9... Bb8 10. Nb4) 10. Rxc7+) (7... Ne7 8. Nc4) 8. Kf5 Ka6 (8... Ne8 9. Nc4 Nd3) 9. Rb1 N4h5 10. Nc4) 6... Ka6 7. Rb1 Bc7 8. Nxd5 Nxd5 9. Ke4 Nf6+ 10. Kd4 Bxa5 (10... Kxa5 11. Nb4) 11. Ke5 $18) (5... Nfd5 6. Ke4 Ka6 7. Rb3 Bh2 8. Nb6 Nxb6 9. Rxb6+ Kxa5 10. Rb2 Bg1 (10... Ng4 11. Rg2) 11. Rb1 Bf2 12. Kf3 $18) 6. Nb6 Ka6 7. Rc5 Nd2+ 8. Kg4 $1 Nd3 9. Rd5 Ne4 10. Kf3 (10. Nd7 Bc7 11. Kf3 Nf4 12. Nb4+ Ka7 13. Rb5) 10... Nec5 11. Nd7 Nxd7 12. Rxd7 Ne1+ 13. Ke2 $18) 5. Ke4 Nc5+ 6. Kxe5 Nd7+ 7. Kd6 $1 (7. Kd5 $2 Nxb6+ 8. Nxb6 Ka6 9. Nc4 Ne3+ $11) 7... Nxb6 8. Nxb6 $1 (8. axb6+ $6 Kb7 $3 9. Nc3 Ne3 10. Kc5 Kxa8 $11) 8... Nd4 (8... Ka6 9. Nc4 Na3 10. Nb4+ Kb5 11. a6 Kxc4 ( 11... Nxc4+ 12. Kc7 Ka5 13. a7 Nb6 14. Kb7) 12. Kc6 Nb5 13. Nc2 Na7+ 14. Kb7 Nb5 15. Na3+ Nxa3 16. a7 $18) 9. Nb4 Nb3 10. Kc6 $3 Nxa5+ 11. Kc7 1-0

[Event ".c Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Van der Heijden=H"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "k7/P1PK4/q6p/1N5p/B5p1/4P3/P1pP2P1/6B1 w - - 0 1"] [PlyCount "21"] [EventDate "2023"] 
 1. c8=Q+ (1. Bxc2 $2 Qxb5+ $11) 1... Qxc8+ 2. Kxc8 c1=Q+ 3. Bc2 $1 (3. Nc7+ $2 Kxa7 $11) 3... g3 (3... Qxg1 4. Be4#) (3... Qxc2+ 4. Nc7+ Kxa7 5. e4+ Qc5 6. Bxc5#) 4. a3 $1 ({Thematic try:} 4. a4 $2 h4 5. a5 (5. e4 Qxg1) 5... h5 $1 ( 5... h3 $2 6. gxh3 h5 7. h4 $1 $18) 6. a6 $2 (6. Nd4 Kxa7 7. Nc6+ $11) 6... h3 7. gxh3 h4 $19 8. e4 Qxg1 $19) 4... h4 (4... Qxg1 5. Be4#) 5. a4 h5 (5... h3 6. gxh3 $18 {e.g.} h5 7. h4) (5... Qxg1 6. Be4#) 6. a5 (6. e4 $2 Qxg1 7. Bb3 Qc5+ $11 (7... Qc1+ $11)) 6... h3 (6... Qxg1 7. Be4#) 7. gxh3 h4 (7... Qxg1 8. Be4#) 8. a6 {zz} g2 (8... Qxg1 9. Be4#) 9. Bf2 $1 (9. Bh2 $2 Qxc2+ 10. Nc7+ Kxa7 $19) 9... g1=Q (9... Qxc2+ 10. Nc7+ Kxa7 11. e4+ Qc5 12. Bxc5#) 10. Bxg1 Qxg1 (10... Qxc2+ 11. Nc7+ Qxc7+ 12. Kxc7 $18) 11. Be4# {reciprocal zugzwang, festina lente, 8 times refusal of capture in main line.} 1-0

[Event ".c Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Krug=P"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/K7/3N4/8/7p/b5N1/6k1/8 w - - 0 1"] [PlyCount "31"] [EventDate "2023"] 
 1. Ndf5 (1. Nde4 $2 h3 2. Nf5 h2 3. Nh4+ Kh3 4. Nf3 Bc5+) (1. Ngf5 $2 h3 (1... Bc5+ 2. Ka6) 2. Ne4 h2 3. Nh4+ Kh3 4. Nf5 Bc5+ 5. Nxc5 h1=Q 6. Nd6 Qc6) 1... Bc5+ 2. Ka6 (2. Kb7 $2 h3 3. Ne4 Bf2 4. Nh6 Bh4 5. Nf5 Kf3 6. Nd2+ Ke2 (6... Kf4 7. Nxh4 h2 8. Ng2+ Kg4 9. Ne3+) 7. Nxh4 h2) 2... h3 3. Ne4 Bf2 (3... h2 4. Nxc5 h1=Q 5. Nd6 Qh6 6. Ncb7) 4. Nh6 Be3 (4... h2 5. Nxf2 Kxf2 6. Ng4+) (4... Bh4 5. Nf5 Kf3 6. Nd2+) 5. Ng4 Kf3 6. Nef6 Bg5 (6... Bf4 7. Kb5 Bg3 8. Kc4 Kf4 (8... Bh4) (8... Bf4) 9. Kd3 Bh4 10. Ke2) 7. Ne5+ (7. Nh2+ $2 Kg2 8. Nh7 Bf4 9. Ng4 Kf3 10. Nhf6 Bg3 11. Kb5 Kf4 12. Kc4 Bh4 13. Kd3 Bxf6 14. Nh2 Kg3) 7... Kg2 8. Nfg4 Bf4 9. Nd3 Bg3 10. Ne3+ Kf3 11. Nf1 Bd6 (11... Bb8 12. Nd2+ Ke3 13. Ne4 h2 14. Ndf2 (14. Nef2 Kf3) 14... Kf3 (14... Bg3 15. Ng4+) 15. Nf6 Kxf2 16. Ng4+ ) 12. Nd2+ Ke3 13. Ne4 h2 14. Ndf2 (14. Nef2 $2 Kf3) 14... Kf3 15. Nf6 Kxf2 16. Ng4+ 1/2-1/2

[Event ".c Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Volodymyr Samilo"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "3n4/5b2/1P2p1N1/2P3K1/k1N5/2P5/8/8 b - - 0 1"] [PlyCount "22"] [EventDate "2023"] 
 1... Kb5 $1 (1... Bxg6 2. b7 $1 {try} (2. Kxg6 $2 Kb5 $1 3. Nd6+ Kxc5 4. b7 Nxb7 5. Nxb7+ Kc4 $11) 2... Nc6 (2... Nxb7 3. c6 Be4 4. c7 $18) 3. Ne5 Nxe5 4. b8=Q $18) 2. Nd6+ $1 {no permutation: try} (2. b7 $2 Nxb7 3. Nd6+ Nxd6 $1 $11 { , no} (3... Kxc5 4. Nxb7+ {+ see solution})) 2... Kxc5 3. b7 Nxb7 4. Nxb7+ Kd5 $1 (4... Kc4 $2 5. Nd6+ {/Nd5+} Kxc3 6. Ne5 {/Nd6} Bg8 7. Kg6 $1 Kd4 8. Ndc4 $18) 5. Nf4+ {try} (5. Ne7+ $2 Kc4 6. Nd6+ Kxc3 7. Nxf7 e5 $1 $11) 5... Kc4 6. Ne2 $1 {try} (6. Nd6+ $2 Kxc3 7. Nxf7 e5 $1 8. Ng2 Kd3 $1 9. Nd6 e4 10. Nf5 e3 $1 $11) 6... Bg8 $1 (6... Kd3 7. Nd6 Kxe2 8. c4 $1 Kd3 9. c5 e5 10. Nxf7 $18) 7. Nd6+ Kd3 8. c4 $1 Kxe2 (8... e5 9. c5 Bd5 10. Ng3 $1 Kd4 11. Nge4 {/Nde4} Bxe4 12. Nxe4 Kxe4 13. c6 $18) 9. c5 e5 10. c6 Bd5 $1 11. c7 Be6 12. Kf6 $1 $18 {Synthesis. Transformation domination 2N->B to domination N->B. Black bishop blockade. In tries is motives of the game according by Troitsky and thematic game black pawn “e”,} (12. Ne4 $2 Bc8 $1 (12... Ke3 $2 13. Kf6 $1 Bc8 14. Nd6 Ba6 15. Kxe5 Kd3 16. Kd5 $1 $18) 13. Nd6 Bd7 14. Kf6 Kd3 $1 15. Ke7 Bh3 16. Kf6 Bd7 $1 $11 {!= positional draw,}) 1-0

[Event ".c Ceskoslovenski Sach"] [Site ""] [Date "2023"] [Round ""] [White "Sedlak=L"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/3p3k/1R6/5P2/4pr2/7K/8 w - - 0 1"] [PlyCount "20"] [EventDate "2023"] 
 1. Rb6 $1 (1. Rd5 $2 Rf2+ 2. Kg3 Rd2 3. Ra5 d5 4. Kf3 d4) (1. Kg2 Rf2+ (1... Rxf4 2. Rb3 Re4 $1 3. Kf3 e2 $1) 2. Kg3 Rf1 $1 3. Rb2 d5) 1... Kh5 $1 (1... Rf2+ 2. Kg3 Rd2 3. Kf3 e2 4. Kf2 Kh5 5. Ke1 (5. f5 d5)) 2. Rxd6 Kg4 3. Rg6+ $1 (3. Re6 $2 Rf2+ $1 4. Kg1 Kf3 $1 5. f5 e2 6. f6 Rg2+ 7. Kh1 Rg5 8. f7 Rf5 9. Re7 Kf2) 3... Kxf4 (3... Kf5 4. Rg8 ({or} 4. Rg7) 4... Rxf4 (4... Rf2+ 5. Kg3 $1) 5. Kg3 $1 Re4 (5... e2 6. Rf8+ (6. Re8 Re4 7. Rxe4 Kxe4 8. Kf2 Kd3 9. Ke1 Ke3)) 6. Rf8+ Kg5 (6... Ke5) 7. Rf1) 4. Re6 $1 Rf2+ 5. Kg1 Kf3 6. Rf6+ (6. Re8 $2 Rg2+ 7. Kh1 e2 (7... Rg4 8. Rf8+ Rf4 9. Rxf4+ Kxf4 10. Kg2) 8. Rf8+ (8. Re7 Rg4 (8... Rg7 9. Re8 e1=Q+ 10. Rxe1 Kf2) 9. Rf7+ Ke3 10. Re7+ Re4) 8... Kg3 9. Rf3+ Kg4 10. Re3 Rf2 11. Kg1 Rf1+) 6... Ke2 7. Ra6 (7. Rb6 $2 Rf8 8. Rb2+ Kd1 9. Rb1+ Kc2 10. Re1 Kd2) 7... Rf8 8. Ra2+ Kf3 9. Kf1 Rb8 10. Rf2+ (10. Ra1 $2 Rh8 11. Kg1 Rg8+ 12. Kh2 e2) 10... exf2 (10... Ke4 11. Ra2 (11. Rf7 $11) 11... Kf3 12. Rf2+) 1/2-1/2