www.arves.org - Problem Paradise 2022

Studies (provisionally) awarded for the Problem Paradise 2022 tournament.

Section WIN

[Event "2.p. Problem Paradise "] [Site ""] [Date "2022.04.24"] [Round ""] [White "Jan Timman"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1b1B2k1/6p1/2Pp4/5p2/Pp5K/1p1PP3/2p3N1/R7 w - - 0 1"] [PlyCount "23"] [EventDate "2022.04.24"] 
 1. Ne1 $1 Bc7 $1 (1... b2 2. Nxc2 b3 3. Bf6 bxa1=Q 4. Nxa1 gxf6 5. Nxb3 $18) 2. Bg5 $1 (2. Bf6 $2 gxf6 3. d4 b2 4. Nxc2 bxa1=Q 5. Nxa1 d5 $1 (5... Kf7 $2 6. d5 $18) 6. Nb3 Kf7 7. a5 Ke7 8. a6 Bb6 $11) 2... b2 3. Nxc2 b3 4. Bf6 $1 Bd8 $1 ( 4... bxa1=Q 5. Nxa1 gxf6 6. Nxb3 $18) (4... bxc2 5. Bxb2 $18) 5. c7 $1 (5. Kh3 $2 Bxf6 6. c7 bxc2 7. c8=Q+ Kf7 8. Qd7+ Kf8 $11) 5... Bxf6+ 6. Kg3 $1 bxc2 ( 6... Be5+ 7. Kg2 $1 (7. Kf2 $2 bxc2 8. c8=Q+ Kf7 9. Qd7+ (9. Rg1 b1=Q 10. d4 Bf6 $11) 9... Kf6 10. Rg1 b1=Q 11. Qxg7+ Ke6 12. Rg6+ Kd5 13. Qg8+ Kc5 14. Qc4+ (14. d4+ Kb4 $11) 14... Kb6 15. a5+ Kb7 16. a6+ Kb6 $11) 7... bxc2 (7... bxa1=Q 8. Nxa1 b2 9. c8=Q+ Kh7 10. Qxf5+ $18) 8. c8=Q+ $18) 7. c8=Q+ Kf7 8. Rh1 $1 (8. Qd7+ $2 Kg6 9. Rh1 (9. Rf1 c1=Q 10. Qxf5+ Kf7 $11) 9... Be5+ $1 $11) 8... b1=Q 9. Qd7+ Be7 (9... Kf8 10. Rh8#) 10. Qxf5+ Bf6 11. Qd7+ Be7 (11... Kg6 12. Qe8+ Kg5 13. Qh5# {/Rh5+ mate}) 12. Qc6 $1 $18 1-0

Section DRAW

[Event "1/2.p. Problem Paradise "] [Site ""] [Date "2022"] [Round ""] [White "Michael Pasman"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "r6b/1R1p4/2pKP3/B5k1/1P6/2p5/8/8 w - - 0 1"] [PlyCount "21"] [EventDate "2021"] 
 1. Ra7 $3 (1. e7 $2 Bf6 2. Bb6 (2. b5 Bxe7+ 3. Kxe7 Rxa5 4. bxc6 dxc6 $19) 2... Kf4 $19) (1. Bb6 $2 dxe6 2. Rc7 Kf5 3. Rxc6 Ke4 4. Kxe6 Kd3 $19) (1. b5 $2 Rxa5 2. exd7 (2. e7 Ra8 3. bxc6 (3. Ra7 Re8 $19) 3... dxc6 $19) 2... Bf6 3. Rc7 Rxb5 4. Rxc6 Rb8 5. Rc8 Rb6+ 6. Kd5 Rb1 $1 7. Ke6 (7. d8=Q Rd1+ $19) 7... Re1+ $1 $19) (1. exd7 $2 c2 $19) 1... Be5+ $1 (1... Rxa7 2. e7 c2 (2... Ra8 3. Bd8 $11) (2... Be5+ 3. Kxe5 d6+ 4. Kxd6 Rxe7 5. b5 Re2 {see line B)}) 3. e8=Q c1=Q 4. Bd8+ $1 Bf6 (4... Kf4 5. Qf7+ Ke4 6. Qg6+ Kd4 7. Bb6+ Kc4 8. Qf7+ Kxb4 9. Bxa7 Qd1+ 10. Kc7 Be5+ 11. Kd8 Kc3 12. Qxd7 $11) 5. Qe5+ Kg4 6. Qe2+ $1 Kf5 7. Qd3+ $1 Kf4 (7... Kg4 8. Qe2+ $11) 8. Bxf6 $11) ({White's idea is seen after} 1... Rg8 $2 2. exd7 {With advantage for white,}) (1... dxe6 2. Rxa8 c2 3. Rg8+ { Also with advantage for white,}) 2. Kxe5 d6+ (2... Rxa7 3. e7 d6+ 4. Kxd6 Rxe7 {as main}) 3. Kxd6 Rxa7 4. e7 $1 (4. b5 $2 Rxa5 $19) 4... Rxe7 $1 5. b5 $3 {A)} (5. Kxe7 $2 c2 $19) 5... Re3 ({B)} 5... Re2 6. Bxc3 cxb5 7. Kc5 Rc2 8. Kb4 Kf5 9. Be1 $1 (9. Bg7 $2 Rc7 10. Bh6 Rb7 $19) 9... Rc1 10. Bd2 Rd1 11. Bc3 Rd5 ( 11... Rb1+ 12. Ka5 $1 Ke4 13. Bb4 $11) 12. Be1 $1 (12. Ka5 $2 Ke4 $19) 12... Ke5 13. Ka5 $1 Kd6 (13... Kd4 14. Kb4 Ke3 15. Bg3 $1 $11) 14. Kb6 $1 $11) ({or } 5... c2 6. Bd2+ Kf6 7. b6 $1 $11 (7. bxc6 $2 Re1 $1 8. c7 Rd1 $1 9. c8=Q Rxd2+ $19) (7. Kxc6 $2 Re2 $19)) 6. Bxc3 $1 (6. bxc6 $2 Rd3+ $1 (6... c2 $2 7. Bd2 Kf4 8. c7 $19) 7. Ke5 c2 $19) 6... Rd3+ $1 (6... Rxc3 7. bxc6 $1 $11) 7. Bd4 $1 (7. Kc7 cxb5 $1 $19) ({Thematic try :} 7. Kxc6 $2 Rxc3+ 8. Kd6 Rb3 $1 9. Kc6 Kf6 10. b6 Ke7 11. b7 Kd8 $19) 7... Rxd4+ 8. Kc5 $1 Rd1 9. bxc6 Kf6 { with known finish :} 10. c7 Ke7 11. c8=N+ $1 $11 1/2-1/2

[Event "1/2.p. Problem Paradise "] [Site ""] [Date "2022.08.19"] [Round ""] [White "Sergey Osintsev"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1KBn4/1nP2rP1/2k5/8/8/8/1r6/8 w - - 0 1"] [PlyCount "31"] [EventDate "2021"] 
 1. Bd7+ (1. g8=Q $2 Nd6+ 2. Bb7+ Rxb7+ 3. Ka8 Rbxc7 $1 $19) 1... Kxd7 2. c8=Q+ Kd6 3. g8=Q Nc6+ ({Additional line} 3... Nc5+ 4. Ka8 Ra2+ 5. Kb8 Nd7+ 6. Qxd7+ Kxd7 (6... Rxd7 7. Qf8+ $11 (7. Qg3+ $11) ({not} 7. Qxa2 $2 Nc6+ 8. Ka8 Rd8+ 9. Kb7 Rb8+ 10. Ka6 Ra8+ 11. Kb6 Rxa2 $19)) 7. Qxd8+ $1 Kxd8 $11 {mirror stalemate }) 4. Qxc6+ (4. Ka8 $2 Ra2#) 4... Kxc6 5. Qe8+ $3 {Preliminary check!} ({ The Queen cannot immediately} 5. Qxf7 $2 {Position A1 with Kc6} Nd6+ $1 6. Ka8 Nxf7 $19) (5. Qc8+ $2 Kd6 $19) (5. Qg6+ $2 Nd6+ $19) 5... Rd7 $1 ({ Additional line} 5... Kd6 6. Qxf7 {Position A with Kd6} Nd8+ 7. Kc8 $1 Nxf7 $11 {ideal mirror stalemate!}) 6. Qc8+ $1 Kd6 7. Qf8+ Ke6 (7... Re7 8. Qf6+ $11) 8. Qh6+ $1 ({Try} 8. Qe8+ $2 Re7 $1 9. Qg6+ Kd7 $1 10. Qg4+ Kc6 $1 11. Qf3+ Kb5 $1 12. Qd3+ Kb4 13. Qd4+ Ka3 14. Qa7+ Na5+ $19) 8... Kd5 9. Qh1+ $3 ({ Logical try No.1} 9. Qg5+ $2 Kc4 $1 10. Kc8 Rf7 $1 { Position B1 with Qg5, there is no check on e4! Only move} 11. Qc1+ Kb3 12. Qe3+ Ka4 $1 (12... Ka2 $2 13. Qe6+ Ka1 14. Qe1+ Ka2 15. Qe6+ Rb3 16. Qe2+ Ka3 17. Qa6+ Kb4 18. Qb6+ Kc4 19. Qe6+ Kc3 20. Qe3+ Kb4 21. Qb6+ Ka4 22. Qa6+ Na5 23. Qc6+ Rb5 24. Qc2+ Rb3 25. Qc6+ Nxc6 $11 {mirror stalemate}) 13. Qd4+ Rb4 14. Qd1+ Ka5 $1 15. Qd5+ Rb5 $1 { Position C1. Both black Rooks are indirectly protected by Knight's forks} 16. Qa2+ ({or} 16. Qxf7 $2 Nd6+ $19) 16... Kb4 17. Qb2+ Kc4 18. Qe2+ Kd4 $3 19. Qxb5 Nd6+ $19) ({Logical try No.2} 9. Kc8 $2 Rf7 $1 { The Rook goes under the protection of the Knight's fork} (9... Re7 $2 10. Qh1+ Kc4 11. Qh4+ $11) 10. Qh1+ (10. Qh5+ Kc6 $1 11. Qxf7 Nd6+ $19) 10... Ke5 $1 { Position B2 with Ke5! Only move} 11. Qh5+ Rf5 12. Qh8+ Rf6 $19) (9. Qh5+ $2 Kc6 10. Qf3+ Kb5 $1 $19) 9... Kd6 10. Qh6+ (10. Qd1+ $2 Ke7 $1 11. Qe1+ Kf8 12. Qf1+ Rf7 $19) 10... Kd5 11. Qh1+ Kc4 12. Kc8 $1 (12. Qc1+ $2 Kb3 $1 $19) 12... Rf7 $1 {Position B with Qh1 and Kc4} ({Additional line} 12... Rdd2 13. Qe4+ ( 13. Qc6+ $2 Nc5 $1 14. Qa6+ $5 ({or} 14. Qe6+ $5 Rd5 $19 (14... Nxe6 $2 $11 { mirror stalemate})) 14... Kc3 $19 (14... Nxa6 $2 $11 {mirror stalemate})) 13... Rd4 14. Qe6+ Kc5 15. Qe5+ Kc6 $1 16. Qc7+ $1 (16. Qxd4 $2 Nd6+ 17. Kd8 Rb8+ 18. Ke7 Nf5+ $19) (16. Qe8+ $2 Kb6 $1 $19) 16... Kd5 17. Qf7+ (17. Qd7+ $2 Nd6+ $19 ) 17... Kc5 18. Qc7+ $11 {Positional draw} Kb4 19. Qxb7+ ({not} 19. Kxb7 $2 Rc4 $1 (19... Ka3+ $2 20. Kc8 $11) 20. Qg3 Rb3 $1 21. Qd6+ ({or} 21. Qe5 Ka3+ $19) 21... Kc3+ 22. Ka6 Ra4#)) (12... Nc5 13. Qc1+ $11 ({not} 13. Qf1+ $2 Rd3 $1 $19 (13... Kb4 $2 14. Qc4+ $1 Kxc4 $11 {stalemate}))) (12... Re7 13. Qh4+ $11) 13. Qe4+ $1 (13. Qc1+ $2 Kb3 14. Qe3+ Ka4 $19) 13... Kb5 14. Qe5+ $1 (14. Qd3+ $2 Kb4 $1 $19) 14... Kc6 15. Qe4+ $1 ({Similar with logical try No.1} 15. Qe8+ $2 Kb6 $1 16. Qe6+ Ka5 $1 17. Qe5+ Rb5 $19 {Position C2.}) 15... Kb5 ({or} 15... Kb6 16. Qd4+ $11) 16. Qe5+ $11 {Position C. In contrast to the logical try No. 1, the Black Rook could not move to b5 under the protection of the Knight's fork. Positional draw.} 1/2-1/2

[Event "4.p. Problem Paradise "] [Site ""] [Date "2022.11.23"] [Round ""] [White "Michal Hlinka & Lubos Kekely"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "5N2/3P4/2k5/2p2n2/5R2/KP6/Pp2r3/4N3 w - - 0 1"] [PlyCount "29"] [EventDate "2021"] 
 1. Nc2 $1 {sacrifice for open the 1st rank} (1. d8=Q $2 b1=N+ $1 2. Ka4 Rxa2#) 1... Rxc2 (1... b1=Q 2. d8=Q Qc1+ 3. Ka4 Qxf4+ 4. b4 $1 Nd6 5. Qa8+ $1 Kc7 6. Qa5+ $1 Kb7 7. Nd7 Rxc2 8. Nxc5+ Rxc5 9. Qxc5 $11) 2. Rf1 (2. d8=N+ $2 Kb6 3. Rf1 Rc1 4. Kxb2 Rxf1 5. Nf7 Rf2+ 6. Kc3 Rxa2 7. Ne5 Re2 $19) 2... Nd6 (2... Nd4 3. d8=N+ $1 Kd6 (3... Kd5 4. Nd7 Nb5+ 5. Ka4 Nc3+ 6. Ka5 Rc1 7. Nb6+ Ke4 8. Nc4 Rxf1 9. Nxb2 Rf2 10. Nc4 Rxa2+ 11. Kb6 Kd5 12. Ne3+ Kd4 13. Nc4 Nd5+ 14. Kb5 $11) 4. Nb7+ Kd5 5. Nd7 (5. Nxc5 Nb5+ 6. Kb4 Rc1 7. Rf5+ Kc6 8. Ng6 b1=Q 9. Rf6+ Kd5 10. Ne7+ Kd4 11. Nc6+ Ke3 12. Kxb5 Qxa2 13. Re6+ Kd2 14. Rd6+ Ke2) 5... Nb5+ 6. Ka4 Rc1 7. Nb6+ Kd4 8. Rxc1 bxc1=Q 9. Kxb5 Qc2 10. Nc4 Qxa2 11. Nxc5 $11) 3. d8=N+ $1 {phoenix} (3. Rb1 $2 Nb5+ 4. Ka4 Nc3+ 5. Ka5 Kc7 $19) (3. d8=Q $2 b1=N+ $1 4. Rxb1 Nb5+ 5. Ka4 Rxa2#) 3... Kd5 4. Nd7 Nb5+ 5. Ka4 Nc3+ ( 5... Rc1 6. Nb6+ Ke4 7. Nc4 Nc3+ 8. Ka5 {as main}) 6. Ka5 Rc1 (6... b1=Q 7. Rxb1 Nxb1 8. Kb6 $11) 7. Nb6+ $1 Ke4 (7... Kd4 8. Ne6+ Ke5 9. Nxc5 Rxf1 10. Nd3+ Kd4 11. Nxb2 Rf5+ 12. Ka6 Nxa2 13. N6c4) 8. Nc4 Rxf1 9. Nxb2 Kd5 10. Nc4 $1 {switchback} (10. Na4 $2 Nxa4 11. Kxa4 Rf2 12. a3 Rf8 13. Nb7 Rb8 14. Na5 Rb6 15. Nc4 Rb7 $19) 10... Rf8 (10... Nxa2 11. Ne3+ $11) (10... Rf6 11. a4) 11. Nb6+ $1 {switchback} (11. Nb7 $2 Kc6 12. Nbd6 Ra8#) 11... Kd6 12. Nb7+ Kc6 13. Nxc5 (13. Ka6 $2 Kc7 14. Nxc5 Rf6 15. Ncd7 Rf5 $1 16. a3 Nd5 $19) 13... Kxc5 ( 13... Nxa2 14. b4 $11) 14. Nd7+ Kc6 15. Nxf8 $11 1/2-1/2

[Event "5.p. Problem Paradise "] [Site ""] [Date "2022.02.17"] [Round ""] [White "Valery Kalashnikov"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "7K/3r3P/4n3/5k2/8/4Q3/8/5r2 w - - 0 1"] [PlyCount "25"] [EventDate "2021"] [TimeControl "300"] 
 1. Kg8 ({Prematurely} 1. Qh3+ $2 Ke5 2. Qc3+ {because} (2. Qe3+ Kf6 3. Qc3+ Kf7 4. Qc8 Ke7 5. Kg8 Rg1+ 6. Kh8 Rgd1 $19) 2... Rd4 3. Qe3+ Kf6 4. Qxd4+ Nxd4 5. Kg8 Rg1+ 6. Kf8 Ne6+ $19) 1... Rg7+ (1... Rd8+ 2. Kf7 Ng5+ 3. Ke7 $11) 2. Kh8 Rc7 $1 3. Kg8 ({after} 3. Qh3+ $2 Ke5 {poorly} 4. Qc3+ $4 $19) 3... Rc8+ 4. Kf7 Ng5+ 5. Kg7 (5. Ke7 $2 Rf4 $1 6. Kd7 Rh8 7. Qc5+ Kg6 $19) 5... Rc7+ 6. Kg8 Rc8+ 7. Kg7 Ne6+ 8. Kf7 Rc7+ (8... Nf4 9. Qe7 Nh5 10. Qe2 Rc7+ 11. Kf8 $11) 9. Kg8 Rg7+ (9... Rc8+ 10. Kf7 {eternal check the White}) 10. Kh8 Rf7 11. Qh3+ $1 (11. Qd3+ $2 Kg5 $1 12. Qg3+ Kf6 13. Qc3+ Kg6 14. Qc2+ R1f5 15. Qg2+ Ng5 16. Qc6+ R7f6 $19) 11... Ke5 12. Qc3+ $1 {and not possible Rd4} (12. Qe3+ $2 Kf6 13. Qc3+ Kg6 14. Qg3+ Ng5 15. Qd6+ R1f6 $19) (12. Qg3+ $2 R1f4 13. Qc3+ Kf5 14. Qh3+ Kf6 15. Qh6+ Ke7 $19) 12... Kf5 13. Qh3+ $1 {eternal check} 1/2-1/2

[Event "sp.hm. Problem Paradise "] [Site ""] [Date "2022.11.30"] [Round ""] [White "Pavel Arestov & Michal Hlinka"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "RK6/5k2/B1N5/b1q5/8/8/p6B/8 w - - 0 1"] [PlyCount "33"] [EventDate "2021"] 
 1. Bc4+ Kf6 $1 (1... Qxc4 2. Ne5+ $11) (1... Kg6 2. Ra6 {/Bd3=}) (1... Kg7 2. Ra7+ {/Be5+=}) 2. Be5+ Qxe5+ (2... Kg6 3. Bd3+ Kg5 4. Rxa5 Qb6+ 5. Kc8 Qxc6+ 6. Bc7+ $11) 3. Nxe5 a1=Q {black phenix} 4. Nd7+ (4. Nd3 $2 Qd4 5. Rxa5 Qb6+ $19) 4... Ke7 (4... Kg5 5. Ra6 $1 (5. Bb5 $2 Qc3 6. Kb7 Qc7+ 7. Ka6 Bc3 8. Nb6 Bd4 $19) 5... Qa4 6. Ka8 $1 Qxd7 7. Rxa5+ Kf4 8. Rc5 Qd6 9. Rc8 $11) 5. Ra7 (5. Bb5 $2 Qc3 $19 6. Ra7 Kd8 7. Ka8 Bc7 8. Kb7 Qf3+) 5... Kd8 $1 (5... Qc3 6. Nc5+ $1 $11) (5... Kd6 6. Bb5 Qc3 7. Kb7 Qb4 8. Ka6 Bd8 9. Nb6 Qa3+ 10. Na4 $1 Ke5 11. Rd7 $11) 6. Ka8 $1 (6. Nc5 $2 Qe5+ $19) (6. Bb5 $2 Qc3 {/e1-+}) 6... Qh1+ (6... Qc3 7. Nc5 $1 Qf3+ (7... Qxc4 8. Nb7+ $1 $11) 8. Kb8 Qf4+ 9. Ka8 {pos. draw}) 7. Rb7 Kc8 8. Bd5 $1 Qa1 (8... Qxd5 9. Nb6+ $1 Bxb6 {stalemate}) 9. Ra7 Qc3 ( 9... Qd4 10. Rxa5 $1 Kxd7 11. Ra7+ Kd6 12. Bf7 $11) (9... Qb2 10. Rxa5 $1 $11) 10. Nb8 $1 Bc7 (10... Bb6 11. Be6+ $11) 11. Na6 Bh2 (11... Be5 12. Be6+ Kd8 13. Rd7+ Ke8 14. Kb7 $1 Qf3+ 15. Bd5 $1 Qa3 16. Bc6 $11 {/Be6=}) 12. Rh7 $1 (12. Be6+ $2 Kd8 13. Rd7+ Ke8 14. Rb7 Qa5 15. Bf7+ Kf8 16. Bc4 Qd8+ 17. Nb8 Bc7 $19 {egtb}) 12... Bg3 13. Rf7 $1 Kd8 $1 (13... Qa5 14. Be6+ Kd8 15. Bc4 $1 Kc8 16. Be6+ $11 {pos. draw}) 14. Kb7 $1 Qb2+ (14... Qd4 15. Bc6 $1 Qb2+ 16. Ka7 $1 Qd4+ 17. Kb7 $11 {pos. draw}) (14... Bd6 15. Be6 $1 Be7 (15... Qa3 16. Rd7+ $11 ) 16. Rf5 $1 Bd6 (16... Qb2+ 17. Kc6 $11) 17. Rf7 $1 $11 {pos. draw}) 15. Kc6 Qc2+ 16. Nc5 Bf2 17. Bc4 $1 $11 (17. Rf8+ $2 Ke7 18. Rf7+ Ke8 19. Bc4 Bg1 20. Kb5 Qb2+ 21. Nb3 Qe5+ 22. Ka4 Qe4 23. Kb5 Be3 24. Rf1 Qe5+ $19 {egtb}) 1/2-1/2

[Event "sp.hm. Problem Paradise "] [Site ""] [Date "2022"] [Round ""] [White "Michael Pasman"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/P7/5P2/6r1/3p4/pb4BR/k4K2 w - - 0 1"] [PlyCount "32"] [EventDate "2021"] 
 1. a7 $1 (1. Bd5 $2 Bd4 $1 2. Rxa2+ Kb1 $19) 1... Rf4+ (1... Ra4 2. Bd5 $1 { as main}) 2. Bf3 $1 {White is blocking with the bishop and sacrifices it, but black not accepts the sacrifice} Ra4 $1 (2... Rxf3+ 3. Kg2 $1 $11) (2... d2 3. Ke2 $1 $11) 3. Bd5 Rxa7 4. Rd2 Ra3 $1 (4... Kb1 5. Bxa2+ $11) 5. Rd1+ Bc1 { Now black is blocking from the check with bishop, the same as white before, but white notacceptsthesacrifice} 6. f6 $1 (6. Rxc1+ $2 Kb2 $19) (6. Bxa2 $2 Kxa2 7. Rxc1 Kb2 $1 8. Rd1 (8. Rc8 Ra1+ 9. Kf2 d2 $19) 8... Kc2 $19) 6... Kb2 7. Bxa2 Kc2 $1 8. Ke1 d2+ {Main A :} ({Main Line B} 8... Rxa2 9. f7 Ra8 10. f8=Q $1 Rxf8 11. Rxc1+ $1 Kxc1 $11 {Ideal Stalemate}) 9. Ke2 Rh3 $1 10. Bc4 $3 ({Logical try :} 10. f7 Rh2+ 11. Kf1 Ba3 $1 { and white bishop takes no control on e2 square to play Kg1}) 10... Rh2+ 11. Kf1 $1 Rh1+ (11... Kxd1 $4 12. Bb3#) (11... Ba3 12. Kg1 $1 { and the bishop takes control on e2 square, for example} Rh3 13. Be2 Re3 (13... Bc5+ 14. Kg2 Re3 15. Kf2 Re6+ 16. Kf3 $11) 14. Kf2 $11) 12. Ke2 $1 Rxd1 13. Bd3+ $1 ({Thematic try :} 13. Bb3+ Kxb3 14. Kxd1 Kc3 15. f7 Ba3 $19) 13... Kc3 14. Kxd1 Kxd3 15. f7 Ba3 16. f8=Q Bxf8 {Stalemate. ical stalemate in main line A with logical try and ideal stalemate in main line B} 1/2-1/2