www.arves.org - First prizes 2020

Studies awarded first prizes in 2020

(Created in 2020 and as far as they have been send to Arves in PGN-format).

[Event "1st Prize , Springaren 2019-2020"] [Site ""] [Date ""] [Round ""] [White "Michael Pasman"] [Black ""] [Result "1-0"] [Annotator ",Afek"] [SetUp "1"] [FEN "8/2pp3p/8/P6P/2K4k/3pB3/7b/8 w - - 0 1"] [PlyCount "31"] [EventDate "2020"] 
 {A most subtle bishop ending of the same colour with all units active. White tries to penetrate through the enemy pawn barricade to trap the black Bishop in the upper corner of the queenside, while Black opts for a well known fortress on the kingside. The White Bishop's journey of 9 only moves is the highlight of this tough and deep battle.} 1. a6 $1 (1. Kxd3 c6 $1) 1... d2 $1 ( 1... Bg1 2. Kxd3 $1) 2. Bxd2 Bg1 3. Bc3 $1 (3. Kd3 $2 Ba7 $1 4. Be3 Bb8 $11) ( 3. Ba5 $2 c6 $3) (3. Bb4 $2 Ba7 4. h6 Kh5 5. Bc5 Bb8 6. Be3 c6 $11) ({Try :} 3. h6 c6 $3 4. Kd3 Ba7 $1 5. Be3 Bb8 6. a7 (6. Ke4 Kg4 $1 $11) 6... Bxa7 7. Bxa7 { We reach drawn position - Black can give up also his c and d pawns and with the king in the corner - g8 - White can not win,positionaldraw}) 3... Ba7 (3... c6 4. Bd4 $18) 4. Bd4 $1 ({Try :} 4. h6 $2 c6 $1 5. Bd4 d5+ $1 6. Kd3 c5 $1) 4... Bb8 5. h6 $1 ({Thematic try :} 5. Be5 $2 d6 $1 6. Bc3 (6. Bd4 c6 $1 7. Bc3 $6 Ba7) 6... c6 $1 7. Bb4 (7. h6 Ba7 8. Bb4 d5+ $1 $11) 7... Kxh5 8. Bxd6 Ba7 9. Bc5 Bb8 {See main line - move 8 if Black plays 8. ..Kxh6 - the small difference is Black King position on h5 instead of h6 - is enough for draw.} 10. Bb6 Kg4 $1 11. Kc5 h5 $1 12. Kxc6 h4 13. Kb7 h3 14. Kxb8 (14. Bg1 Kg3 15. Kxb8 Kg2 $11) 14... h2 $11) 5... Kg5 {[#]} (5... c6 $5 6. Bf6+ $1 Kg4 (6... Kh5 7. Kc5 Ba7+ 8. Kd6 $18) 7. Kc5 $1 Ba7+ (7... Kf5 8. Kb6) 8. Kd6 $1 $18 c5 9. Kd5 Kf5 10. Be7 c4 11. Kxc4 Ke5 12. Bc5) (5... Kg4 6. Be5) (5... Kh5 6. Be5) 6. Be5 $3 {To open up a path in with for his King.} d6 (6... Ba7 7. Bxc7) (6... Kxh6 7. Bxc7 Ba7 8. Kb5 Kg5 9. Bb6 Bb8 10. Bf2 h5 11. Kb6 $18) 7. Bc3 $3 { Back to c3 - and this is the only move} ({Try :} 7. Bb2 $2 Kxh6 8. Kd5 (8. Kb5 Ba7) 8... Ba7 $1 9. Bd4 c6+ $1) ({Try :} 7. Bg7 $2 c6 $1 8. Bf8 d5+ $1 9. Kc5 Ba7+ $1 10. Kxc6 d4 $1 11. Kb7 (11. Ba3 d3 12. Bc1+ Kg6 13. Kb7 Bf2 14. a7 Bxa7 15. Kxa7) 11... d3 $1 {and black exactly in time}) ({Try :} 7. Bd4 $2 c6 $1 8. Be3+ (8. Bc3 $4 Ba7 9. Bb4 d5+) 8... Kf5 9. Bb6 Kg5 10. Bc7 d5+ 11. Kc5 d4 12. Bxb8 d3 13. a7 d2 14. a8=Q d1=Q $11) 7... c6 $1 { To avoid penetration via b5 or d5} (7... Kxh6 8. Kb5 Ba7 9. Kc6 $1 Kg6 10. Kb7 $1 Bc5 (10... Bb6 11. Ba5 $1 Bf2 12. Kxc7) 11. Kxc7 h5 12. Ba5 {Here we see the difference - if white played Bb2 insted of Bc3 for example - Bishop on c3canjumptoa5} h4 13. Bb6 $18) 8. Bb4 $1 {Now threatening Bxd6} Kf6 ({ Important line is} 8... Kxh6 9. Bxd6 Ba7 10. Bc5 $1 Bb8 { and the bad position of the Black king on h6 allows White to win, for example : } 11. Bf8+ Kg6 (11... Kg5 12. Kc5 h5 13. Kxc6 h4 14. Be7+ Kg4 15. Bxh4 $18) 12. Kc5 h5 13. Kb6 h4 14. Bd6 $1 Bxd6 15. a7 h3 16. a8=Q $18) (8... Kf5 9. Bxd6 Ba7 10. Bc5 $1 Bb8 11. Kd4 $1 (11. Ba3 {or Bb4} Ba7 { wastes time, must play again Bc5}) (11. Bb6 Ke6 12. Kc5 Kd7 $11) 11... Ke6 ( 11... Be5+ 12. Kd3 Bb8 13. Bb6 $18) (11... Kf6 12. Bb6 Ke6 13. Ke4) 12. Ke4 $1 Kf6 $5 (12... Kf7 13. Kf5 $18) (12... Kd7 13. Kf5 $1 {Main line}) 13. Bb6 Ke6 14. Bd4 $1 {Black is in zugzwang} Kf7 (14... Kd7 15. Kf5 $18) 15. Kf5 Ke7 16. Bb6 Kf7 17. Bc5 Ke8 18. Kf6 $18) (8... d5+ { White wins by King penetration Kc5-c6-b7}) 9. Bxd6 Ba7 10. Bc5 $1 { The 8th move with the Bishop !} Bb8 11. Kd4 $1 (11. Bb4 {/Bf8} Ba7 { is a loss of time}) (11. a7 $2 Bxa7 12. Bxa7 c5 13. Bxc5 Kf7 { is a draw - Black king hides on g8-h8.}) 11... Kf5 ({Or} 11... Ke6 12. Ke4 Kf6 13. Bb6 Ke6 14. Bd4 {zz}) 12. Bb6 $1 (12. Bf8 $2 Ba7+ {and White must return} 13. Bc5) 12... Ke6 13. Ke4 $1 Kd7 ({Or} 13... Kf6 14. Be3 Ke6 15. Bd4 {ZZ} Kd7 16. Kf5 $18) 14. Kf5 $1 Kc8 ({After} 14... Ke7 {the shortest win is} 15. Bd4 Kf7 16. Bc5 $18) 15. a7 $1 Bxa7 16. Bxa7 1-0

[Event "1.p. Problem Paradise "] [Site ""] [Date "2020"] [Round ""] [White "Jan Timman"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2b2n2/p3NR2/pP2p1p1/4P1p1/1kp5/2q2PP1/6KP/4N3 w - - 0 1"] [PlyCount "30"] [EventDate "2020"] 
 1. Nc6+ $1 (1. bxa7 $2 Bb7 2. Nf5 Qb2+ 3. Kf1 Ka4 $19) 1... Ka4 (1... Kc5 2. bxa7 Qb2+ 3. Kh3 Bb7 4. Na5 g4+ 5. fxg4 Bd5 6. Rc7+ Kb6 7. Nxc4+ Bxc4 8. a8=Q Bf1+ 9. Kh4 Qxh2+ 10. Kg5 Qd2+ 11. Kf6 Qf2+ 12. Kg7 Kxc7 13. Qxf8 $11) 2. bxa7 Qb2+ 3. Nc2 $1 (3. Kf1 $2 Bb7 $1 $19) 3... Qxc2+ (3... Bb7 4. N6b4 $11) 4. Kh3 g4+ $1 5. fxg4 (5. Kxg4 $2 Bb7 6. Rxb7 Qf5+ $18) 5... Nh7 $1 6. Rxh7 g5 7. Rf7 Qg6 8. Nd8 $1 (8. a8=Q $2 Qxf7 9. Qxc8 Qf1#) 8... Qe4 (8... Bb7 9. Rxb7 Qd3 10. Kg2 $11) 9. Nc6 $1 (9. Nb7 $2 Bxb7 10. Rxb7 Qh1 $1 11. Rf7 c3 12. Rf8 c2 13. a8=Q Qxa8 14. Rxa8 c1=Q $19) 9... Qxc6 (9... Qg6 10. Nd8 $11) 10. a8=Q Qxa8 11. Rb7 $3 Qb8 $1 (11... c3 12. Rb4+ Ka3 13. Rb3+ Kxb3 $11 {stalemate}) (11... Bxb7 $11 {stalemate}) 12. Rxb8 Bd7 13. Rd8 $1 (13. Ra8 $2 Ka5 14. Rd8 Bc6 15. Ra8 Bb7 $1 $19) (13. Rb7 Bb5 14. Kg2 Bc6+ 15. Kh3 Ka5) 13... Bc6 14. Ra8 $1 (14. Rc8 $2 Kb5 $19) 14... Kb5 15. Rxa6 Kxa6 $11 {stalemate} 1/2-1/2

[Event "1/2.p. Problem Paradise "] [Site ""] [Date "2020"] [Round ""] [White "Peter Krug"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "r3kb2/P3prnP/5n2/2p1B3/2RR4/6p1/P5p1/K3QB1q w q - 0 1"] [PlyCount "31"] [EventDate "2020"] [TimeControl "300"] 
 1. Rb4 Nd7 (1... cxd4 2. Rb8+ Kd7 3. Rb7+ Ke6 4. Bxd4+ $18) 2. Rb8+ Nxb8 3. Bb5+ Nd7 4. Rxd7 Rf5 (4... Rf6 5. Qxh1 gxh1=Q+ 6. Rd1+ Kf7 7. Rxh1 Rf5 8. h8=Q $18) 5. h8=N $3 (5. h8=Q $2 Qxe1+ $1 6. Rd1+ Kf7 $19) 5... Qxh8 (5... Qxe1+ 6. Rd1#) 6. Rxe7+ Kxe7 7. Bxg7+ Kf7 8. Bxh8 Be7 (8... Bd6 9. Bc4+ Kf8 10. Qe3 Rf1+ (10... Rf4 11. Bd5 Rxa7 12. Bxg2 Re7 13. Qd3 $18) 11. Kb2 g1=Q 12. Qh6+ $18) 9. Bc4+ Ke8 10. Qb1 $1 (10. Qxg3 $2 Rf1+ 11. Kb2 g1=Q 12. Qb8+ Bd8 13. Qe5+ Kf8 14. Qd6+ Ke8 15. Bb5+ Kf7 $11) 10... Bd6 (10... Rxa7 11. Bb5+ Kd8 12. Qd3+ Kc7 13. Qd7+ Kb8 14. Qe8+ Kc7 15. Qc6+ Kd8 16. Qxg2 $18) 11. Bd4 $3 (11. Kb2 $2 Rf2+ $11) 11... g1=Q (11... cxd4 12. Qe4+ Re5 (12... Kd7 13. Qxf5+ $18) 13. Qxa8+) 12. Qxg1 cxd4 13. Qg2 {or} (13. Qh1) 13... Rxa7 14. Qc6+ Ke7 15. Qe4+ Re5 16. Qh7+ $18 {unterminated} 1-0

[Event "1.p MSV-2020"] [Site ""] [Date "2020"] [Round ""] [White "Nielsen,Steffen and Minski,Martin"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/8/5rP1/8/n6k/8/K7/4R2N w - - 0 1"] [PlyCount "19"] [EventDate "2019"] 
 1. g7 Nc3+ (1... Rg6 2. Ng3 $1 Nc3+ 3. Kb3 $1 {see main line}) 2. Kb3 $1 ({ logical try} 2. Kb2 $2 Rg6 3. Ng3 $1 Ne2 $1 4. Nf5+ (4. Rxe2 Kxg3 $11) (4. Nxe2 Rxg7 $11) 4... Kg5 5. Rf1 Kf6 $1 6. g8=Q Rxg8 7. Nh6+ Kg7 8. Nxg8 Kxg8 { position X with wKb2} 9. Rf2 Nd4 $11) 2... Rg6 (2... Rb6+ 3. Kc2 $1 (3. Kxc3 $2 Rg6 4. Ng3 Rxg3+ $1 {with check} 5. Kd4 Rxg7 $11) (3. Kc4 $2 Rc6+ 4. Kb3 Rb6+) 3... Rg6 4. Ng3 $1 Ne2 $1 5. Nf5+ $1 Kg5 6. Rf1 Ng3 7. Rf2 $1 Nxf5 8. Rg2+ $18) 3. Ng3 $1 Ne2 $1 (3... Rxg7 4. Nf5+ $18) (3... Kxg3 4. Rg1+ $18) (3... Rxg3 4. Rh1+ $18) (3... Kg5 4. Nh5 $1 Kxh5 5. Rh1+ Kg5 6. Rg1+ $18) 4. Nf5+ $1 (4. Nxe2 $2 Rxg7 $11) 4... Kg5 5. Rf1 Kf6 $1 (5... Ng3 6. Rf2 $1 Nxf5 7. Rg2+ $18) 6. g8=Q $1 ({logical try} 6. Nh4+ $2 Kxg7 7. Nxg6 Kxg6 {position X with bKg6} 8. Kc4 Kg5 {/Kh5/Kh6= The black king is not far enough.}) 6... Rxg8 7. Nh6+ Kg7 ( 7... Nf4 8. Nxg8+ $18 (8. Rxf4+ $2 Ke5 $11)) 8. Nxg8 Kxg8 {position X} 9. Kc4 $1 {domination} Ng3 (9... Kh7 10. Rf2 {/Rf3} Ng3 11. Rh2+ Kg6 12. Rg2 $18) 10. Rg1 $18 1-0

[Event "1.p. ChessStar 2020 Sec. A.2."] [Date "2020"] [White "Sergey Osintsev"] [Result "1-0"] [FEN "8/K7/5B2/kp1pp3/3p3R/N5R1/3Pp3/3nr1r1 w - - 0 1"] 
 1. Nc4+ $1 Kb4 {[%emt 0:00:00]} (1... dxc4 2. Ra3+ Kb4 3. Be7#) (1... bxc4 2. Ra3+ Kb5 3. Rh7 c3 4. d3 Kb4 5. Be7+ Kb5 6. Rh6 c2 7. Rb6#) 2. Ra3 $1 Rg7+ $1 ( 2... Kxc4 3. d3+ Kb4 4. Be7#) (2... bxc4 3. Be7+ Kb5 4. Rh6 c3 5. d3 Rg7 6. Rb6#) (2... Ref1 3. Be7+ Kxc4 4. d3#) (2... dxc4 3. Be7#) (2... Nb2 3. Be7+ Kxc4 4. Rc3#) (2... Rg3 3. Rxg3 Rf1 4. Nxe5 $1 Rxf6 5. Rxd4+ Kc5 6. Rh4 $1 Rf7+ 7. Ka6 Rf6+ 8. Ka5 Kd6 9. Nd3 Nb2 $1 10. Ne1 Rf1 11. Rh6+ Kc5 12. d4+ Kxd4 13. Nc2+ Kc5 14. Re6 $18) (2... e4 3. Be7+ Kxc4 4. d3+ exd3 5. Rh6 b4 6. Rc6+ Kb5 7. Rc5#) 3. Bxg7 Rf1 4. Bxe5 Rf7+ (4... Kxc4 5. Kb6 $18) (4... bxc4 5. Bd6+ Kb5 6. Rh7 e1=Q 7. Rb7+ Kc6 8. Ra6#) 5. Kb6 Rd7 6. Bxd4 Rb7+ $1 7. Kc6 $1 (7. Kxb7 $2 e1=Q 8. Bc3+ Nxc3 9. Ne3+ Qxh4 10. Nc2+ Kc5 11. Rxc3+ Kd6 $11) 7... Rc7+ 8. Kxc7 e1=Q 9. Bc3+ $1 (9. Kd6 $2 bxc4 $1 10. Bc5+ Kb5 11. Rh8 c3 $1 12. Rb3+ Kc4 13. Rb4+ Kd3 14. Rd4+ Kc2 $11) 9... Nxc3 (9... Kc5 10. d4+ $18) 10. Ne3+ $1 ( 10. dxc3+ $2 Kc5 $11) 10... Qxh4 (10... Kxa3 11. Nc2+ Kb2 12. Nxe1 $18) 11. Nc2+ Kc5 (11... Kc4 12. Rxc3#) 12. Rxc3+ Qc4 13. d4# 1-0

[Event "1.p. UAPA 13th Ty sec.tt"] [Date "2020"] [White "Peter Krug & Pavel Arestov"] [Result "1-0"] [FEN "8/7k/Q1PK3p/8/8/7r/8/1r6 w - - 0 1"] 1. c7 $1 (1. Qa7+ $2 Kg6 2. c7 Rc3 $11) (1. Qe2 $2 Rg3 2. Qc2+ Rg6+ $11) 1... Rc3 ({B)} 1... Rg3 $1 2. Qc4 $1 (2. c8=Q $2 Rg6+ $11) 2... Rg6+ 3. Ke5 $1 (3. Ke7 $2 Rg7+ $11) 3... Re1+ (3... Rg5+ 4. Kf4 $18) 4. Kf4 $1 (4. Kf5 $2 Rh1 $1 5. c8=Q Rh5+ 6. Kf4 Rh4+ 7. Kf3 Rxc4 $11) 4... Re8 (4... Rf6+ 5. Kg3 Rg1+ 6. Kh3 Rfg6 7. Qe4 $18) 5. Qf7+ $1 (5. c8=Q $2 Rxc8 $11) 5... Rg7 6. Qxe8 Rxc7 7. Qe4+ $1 Kg8 8. Qg6+ Rg7 9. Qxh6 $18) 2. c8=Q Rxc8 3. Qd3+ $1 Kh8 $1 (3... Kg7 { /g8} 4. Qxb1 $18) 4. Qd4+ $1 (4. Qxb1 $2 Rg8 $1 5. Ke7 Rg7+ 6. Kf8 Rg8+ 7. Kf7 Rg7+ $13) 4... Kh7 5. Qe4+ Kh8 6. Qe5+ Kg8 (6... Kh7 7. Qf5+ $18) 7. Qe6+ $1 ( 7. Qd5+ $2 {is loss of time}) 7... Kg7 8. Qd7+ $1 (8. Qe7+ $5 Kg8 9. Qe6+ Kg7 { loss of time}) (8. Qxc8 $2 Rd1+ 9. Ke5 Rg1 $1 $11) 8... Kf6 $1 (8... Kg6 9. Qxc8 Rd1+ 10. Ke7 Re1+ 11. Kf8 Rf1+ 12. Kg8 $18) 9. Qe7+ $1 (9. Qxc8 $4 Rd1+ 10. Kc7 Rc1+ $19) 9... Kg6 10. Qe4+ $1 Kf6 11. Qxb1 $18 {win} 1-0

[Event "1.p.13th UAPA sec.B.2.draw "] [Date "2020"] [White "Michael Pasman"] [Result "1/2-1/2"] [FEN "R7/KR6/5P2/2p5/1p5q/7k/P3B3/r7 w - - 0 1"] 
 1. Bc4 $3 (1. f7 $2 Rxa2+ 2. Ba6 Qf6 $19) 1... Qxc4 (1... Qxf6 $4) 2. Rh8+ $1 ( 2. f7 $2 Rxa2+ (2... Qxa2+)) (2. Rh7+ $2 Kg4 $1 3. Rg8+ $5 Kf5 $3) 2... Kg4 3. Rg8+ $3 Qxg8 (3... Kf5 4. f7 Qxa2+ (4... Rxa2+ 5. Kb8 Qf4+ 6. Rc7 $11) 5. Kb8 Qh2+ 6. Rc7 $11) 4. Rg7+ Kh5 $3 (4... Kf5 5. Rxg8 Kxf6 6. Kb6 $1 c4 7. Kb5 $1 c3 8. Rc8 Ke5 9. Kxb4 Rb1+ 10. Ka5 $1 Kd4 11. a4 $1 Kd3 12. Rd8+ $1 Kc4 13. Rc8+ $1 Kd3 14. Rd8+ Kc2 15. Ka6 $1 $11) (4... Qxg7+ $4 5. fxg7 Rxa2+ 6. Kb7 $18) 5. Rxg8 b3 $1 6. Rb8 $1 ({Not} 6. f7 $2 b2 $1 7. Rg1 (7. f8=Q Rxa2+ 8. Kb7 b1=Q+ $19) 7... Rxg1 8. f8=Q b1=Q $19) 6... Rxa2+ (6... c4 7. f7 Rxa2+ 8. Kb6 $1 Rf2 9. Kc5 $1 $11) (6... bxa2 7. Rb2 $11) 7. Kb7 $1 ({Try :} 7. Kb6 $2 Ra8 $3 8. Rxa8 (8. Rb7 c4 $1) 8... b2 9. Rh8+ Kg6 $1 10. Rh1 c4 11. Rf1 Kf7 $1 12. Kc5 c3 13. Kd4 c2 $19) 7... c4 (7... Kg6 8. Kc6 $1 c4 {the same as main}) 8. Kc6 $1 (8. f7 $2 Rf2 9. Kc6 Rxf7 10. Kd5 Rf4 $19 (10... Rc7 $19)) 8... Kg6 9. Kd5 $1 Rc2 10. Ke6 $1 Re2+ 11. Kd5 $1 Rc2 12. Ke6 Rf2 13. Kd5 $1 Rf4 14. f7 $1 (14. Kc5 $2 Kxf6 $19) (14. Rb6 $2 Rxf6 15. Rb4 Rf4 $19) 14... Kxf7 15. Rb6 $1 Kg7 $5 (15... Rh4 16. Kc5 $1 $11 { And Black can't improve his position, for example} Ke7 17. Kd5 Kd7 18. Kc5 Kc7 19. Rc6+ Kb7 20. Rb6+ Ka7 21. Rb4) 16. Kc5 $1 Rf6 17. Rb4 $3 (17. Rb8 $2 Rf8 $1 18. Rb7+ Rf7 $1 $19) 17... Rf4 18. Rb6 $1 $11 1/2-1/2

[Event "1st prize, 10th Maroc Echecs 2020"] [Site ""] [Date "2020"] [Round ""] [White "Luis Miguel Gonzalez"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1R6/7k/1KP2n2/3P1p2/8/7p/8/n7 w - - 0 1"] [PlyCount "37"] [EventDate "2020"] 
 1. d6 $1 ({Thematic try} 1. Kc5 $2 h2 $1 2. Rb1 Nb3+ $1 3. Kd6 Kg6 $1 4. c7 Ne8+ 5. Kd7 Nxc7 6. Kxc7 Nd4 $1 7. Rh1 f4 $1 8. Rxh2 Kf5 $1 9. Rb2 $1 Ke5 $1 10. d6 Ne6+ 11. Kd7 Nd4 $1 12. Ra2 $1 f3 $1 13. Ra5+ Kf4 $1 14. Ke8 Nc6 $1 15. d7 Nxa5 $1 16. d8=Q f2 $11) (1. Kc7 $2 Nc2 2. Rb3 Nxd5+ 3. Kd6 Nce3 4. c7 Nxc7 $11) 1... h2 2. d7 $1 (2. Rb7+ $2 Kg6 $1 3. d7 h1=Q 4. d8=Q Nb3 $11) 2... Nxd7+ $1 (2... h1=Q 3. d8=Q Kg6 4. Qd3 $1 Qg1+ 5. Ka6 Qc5 6. Qg3+ Kf7 7. Rb7+ Ke6 8. Qe1+ Ne4 9. Qxa1 Nd6 10. Qa4 Nxb7 11. Kxb7 $18) 3. cxd7 h1=Q 4. Rb7 $1 (4. d8=Q $2 Qb1+ 5. Ka6 Qa2+ 6. Qa5 Qxa5+ 7. Kxa5 Nc2 $1 $11) 4... Qh6+ $1 5. Ka7 $1 (5. Kb5 $2 Qg7 $1 $11) 5... Qe3+ 6. Ka8 $1 (6. Kb8 $2 Qe5+ 7. Kc8 Qe6 $1 $11) 6... Qa3+ 7. Ra7 Qf3+ 8. Kb8 Qg3+ 9. Rc7 $1 (9. Kc8 $2 Qe3 10. Rb7 Qe6 $1 $11) 9... Qg8+ $1 (9... Qb3+ 10. Rb7 Qg8+ 11. d8=Q+ {transposes to the main line}) 10. d8=Q+ Kh8 11. Kc8 $1 (11. Qxg8+ $2 Kxg8 12. Rc3 Kf7 $1 13. Kc7 Ke6 14. Kc6 Ke5 15. Kc5 Ke4 16. Kc4 f4 $11) 11... Nb3 $1 (11... f4 12. Rc3 $1 $18) 12. Rf7 $3 Qxd8+ 13. Kxd8 Nd2 $1 (13... Nd4 14. Ke7 Kg8 15. Kf6 $1 f4 16. Rg7+ Kf8 17. Rd7 Nc6 18. Rd6 $18) 14. Ke7 $1 (14. Ke8 $2 Kg8 $1 15. Ke7 Ne4 $1 16. Rxf5 Kg7 17. Re5 Nd2 $1 18. Re3 Kg6 19. Ke6 Kg5 $11) 14... Ne4 $1 (14... Kg8 15. Rxf5 Kg7 16. Rf4 Kg6 17. Ke6 Kg5 18. Ke5 $18 {and White traps the Knight}) 15. Kf8 $1 ( 15. Rxf5 $2 Kg7 $1 $11) 15... Ng3 16. Rg7 $1 f4 17. Kf7 $1 Nh5 (17... Nf5 18. Rg5 Nd6+ 19. Ke6 Ne4 20. Rg4 Kh7 21. Rxf4 $18) 18. Rg5 Ng3 19. Rg4 1-0

[Event "1.p Razumenko MT 2020"] [Site ""] [Date "2020"] [Round ""] [White "Sochniev=A"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4b3/4ppK1/2p5/8/7P/P7/P1kP1pP1/5B2 w - - 0 1"] [PlyCount "37"] 
 1. h5 Bd7 2. g4 $3 ({Logical try} 2. h6 $2 Bf5 3. h7 (3. g4 Bd3 $1 4. Bh3 Kxd2 5. a4 c5 6. a5 c4 7. a6 c3 8. a7 c2 9. a8=Q c1=Q $11) 3... Bxh7 4. Kxh7 Kxd2 5. a4 e5 6. a5 e4 7. a6 e3 8. a7 e2 9. Bxe2 Kxe2 10. a8=Q f1=Q 11. Qa6+ Kf2 12. Qxf1+ Kxf1 13. a4 c5 14. a5 c4 15. a6 c3 16. a7 c2 17. a8=Q c1=Q $11 {Pg2 - obstacle.}) 2... Bxg4 (2... Kxd2 3. h6 Ke1 4. Bg2 Bxg4 5. h7 Bf3 6. Bh3 $1 Bg4 7. Bxg4 f1=Q 8. h8=Q Qf6+ 9. Kg8 Qg5+ 10. Qg7 $18) 3. h6 Bf5 4. h7 Bxh7 5. Kxh7 Kxd2 6. a4 e5 7. a5 e4 8. a6 e3 9. a7 e2 10. Bxe2 Kxe2 11. a8=Q f1=Q 12. Qa6+ Kf2 13. Qxf1+ Kxf1 14. a4 c5 15. a5 c4 16. a6 c3 17. a7 c2 18. a8=Q c1=Q 19. Qh1+ $1 $18 {Мастерски сделанный логический этюд с далеким предвидением. Жертва пешки 2. g4!! Неожиданна, слон может побить ее и при этом не быть пойманным или отвлеченным от контроля за каким-то пунктом. Результат сказывается в самом конце: нет пешки на g2, нет препятствий для решающего шаха белого ферзя. Естественная начальная позиция, материальное почти полное равенство, четко выраженная основная идея и отсутствие утомительных доказательных вариантов делают этот этюд запоминающимся как для любителей и профессионалов этюдного творчества, так и для шахматистов-практиков.} 1-0

[Event "1st prize, Azerbaijan CCC-50 AT"] [Site "Chess.com"] [Date "2020"] [Round ""] [White "Petr Kiryakov, Pavel Arestov"] [Black "(Russia)"] [Result "1-0"] [SetUp "1"] [FEN "4q3/6k1/6P1/7K/r1R2N2/8/7p/2Q5 w - - 0 1"] [PlyCount "23"] [EventDate "2020"] [TimeControl "600"] 
 1. Rc7+ ({Try #1} 1. Ne6+ $2 Kg8 $1 2. Rxa4 (2. Rc5 Rc4 $1 3. Rxc4 h1=Q+ 4. Qxh1 Qxg6+ $1 5. Kxg6 {stalemate}) (2. Rc8 h1=Q+ 3. Qxh1 Qxc8 {=}) 2... h1=Q+ 3. Qxh1 Qxg6+ $1 4. Kxg6 {stalemate}) ({Try #2} 1. Rxa4 $2 h1=Q+ 2. Qxh1 Qh8+ 3. Kg5 Qxh1 4. Nh5+ Kg8 5. Kh6 Qc1+ 6. Rf4 Qc7 {=} (6... Qg1 {=})) 1... Kg8 2. Rc8 h1=Q+ 3. Qxh1 Ra5+ (3... Qxc8 4. Qd5+ Kh8 5. Ne6 Ra5 (5... Qb8 6. g7+ {+-}) 6. Qxa5 Qxe6 7. Qc3+ Kg8 8. Kh6 {+-}) 4. Qd5+ $1 Rxd5+ 5. Nxd5 Kg7 $1 (5... Qxc8 6. Ne7+) 6. Rc7+ (6. Rxe8 $2 {model stalemate}) 6... Kf8 7. Kh6 Qe6 8. Nf4 $1 {switchback} Ke8 $1 (8... Qd6 9. Rf7+ Kg8 10. Nh5 Qd2+ 11. Rf4 {Compare with 1. Ra4 line. Black Q is on d2 . instead of c1} Qc1 12. Nf6+ Kh8 13. g7#) 9. Nh5 $1 (9. Nxe6 $2 {stalemate}) 9... Qe5 10. Ng7+ (10. Rf7 $2 Qh8+ $1 11. Kg5 Qe5+ {=}) (10. Rb7 $2 Qh8+ {=}) 10... Kd8 11. Rc5 $1 {now white is winning, black cant stop -g- pawn. For example, 11.... Qf4+ 12.Rg5 Ke7 13.Nh5+-} (11. Rf7 $2 {was wrong -} Qe3+ $1 12. Kh7 Qh3+ 13. Kg8 Qg4 14. Rf8+ Kd7 15. Rf7+ Kd8 {=}) 11... Qxc5 12. Ne6+ {+-} 1-0

[Event "1.p UAPA-12th Ty sec.A.2. tt"] [Site ""] [Date "2020.05.03"] [Round ""] [White "Pavel Arestov & Petr Kiryakov"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4k2r/7p/8/1p2r3/8/1K1Q4/8/8 w k - 0 1"] [PlyCount "19"] [EventDate "2020"] 
 1. Qc3 $1 ({Thematic Try:} 1. Qd4 $2 O-O $1 2. Qxe5 h6 $1 3. Qg3+ Kh7 4. Qd3+ Kg7 5. Qg3+ Kh7 $11) 1... O-O 2. Qg3+ $3 (2. Qxe5 $2 h6 $1 3. Qg3+ Kh7 $11) 2... Kf7 3. Qxe5 h6 4. Qg3 $1 (4. Kb4 $2 Kg6 $1 5. Qg3+ Kh7 6. Qd3+ Kg7 $11) 4... Rg8 5. Qc7+ $1 (5. Qf3+ $2 Kg7 $11) 5... Kg6 6. Kb4 Rf8 (6... Rg7 7. Qc2+ $1 Kf7 8. Qc8 Kg6 9. Qh8 $1 Rh7 10. Qe8+ Rf7 11. Kc5 $1 (11. Kxb5 $2 Kg7 $1 12. Kc6 Rf6+ 13. Kd7 Rf7+ 14. Ke6 Rf6+ 15. Ke7 Rf3 $1 16. Qh5 Re3+ 17. Kd7 Rd3+ 18. Kc7 Rc3+ 19. Kb7 Rb3+ 20. Ka7 Ra3+ $11) 11... Kg7 12. Kd6 Rf6+ 13. Ke7 Rf3 $1 14. Qh5 $1 Re3+ 15. Kd7 Rd3+ 16. Kc6 Rc3+ 17. Kb6 $18) 7. Kxb5 (7. Kc5 {/a5?} Rf7 $1 8. Qg3+ Kh7 $11) 7... Rf6 (7... Rf7 8. Qc4 $1 {main line}) 8. Ka5 $3 (8. Kc5 $2 Rf7 $1 9. Qg3+ Kh7 10. Kd6 Rg7 $1 11. Qh4 Rg6+ 12. Ke7 Rg7+ 13. Kf8 Rg8+ 14. Kf7 Rg7+ $11) (8. Qe7 $2 Rf7 $1 9. Qe6+ Kg7 $11) (8. Qa7 $2 Rf5+ $1 9. Kc6 Rf6+ 10. Kd5 Rf5+ 11. Ke4 Rf7 12. Qg1+ Kh7 13. Ke5 Rg7 $11) 8... Rf7 9. Qc4 $1 Rf6 10. Qg8+ $1 $18 1-0

[Event "1.p. 12th Ty UAPA. Sec.Win"] [Site ""] [Date "2020.07.13"] [Round ""] [White "Amatzia Avni"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4K3/6p1/B5Pk/B6p/7P/7r/2Np1P2/3n4 w - - 0 1"] [PlyCount "11"] [EventDate "2020"] 
 {[#]} 1. Be2 $1 (1. Bxd2+ $2 Kxg6 $11) (1. Kf7 $2 Rf3+ $19) 1... Nxf2 (1... Nc3 2. Kf7 Rxh4 (2... Rd3 3. Ne3 $1 Rd7+ 4. Ke6 $18) 3. Bxc3 Rf4+ 4. Kg8 Rxf2 5. Bxd2+ Kxg6 6. Bd3+ Kf6 7. Bc3+ Kg5 8. Kxg7 $18) (1... Kxg6 2. Bxd1 $18) 2. Kf7 {split} d1=Q $1 ({A)} 2... Rd3 $5 3. Bxd3 $3 d1=Q 4. Nd4 Qxd3 5. Bd2+ { sacrifice of two bishops to pave way for the knight} (5. Nf5+ $4 Qxf5+ $1 $19) 5... Qxd2 6. Nf5#) 3. Bxd1 {B)} Rd3 ({C)} 3... Ne4 4. Bd2+ $3 { sacrifice of a bishop to enable a knight move} ({not at once} 4. Nd4 $2 Nd6+ 5. Ke6 Rd3 $1 $11) 4... Nxd2 5. Nd4 Rxh4 6. Nf5+ Kg5 7. Nxh4 Kxh4 8. Kxg7 $18) 4. Ne3 $3 {sacrifice of a knight to enable a bishop move} Rxe3 (4... Rd7+ 5. Ke6 Rxd1 (5... Nxd1 6. Kxd7 Nxe3 7. Bd2 $18) (5... Ra7 6. Bb6 Rb7 (6... Ra6 7. Kf7 $18) 7. Nf5+ Kxg6 8. Bxf2 $18) 6. Nxd1 Nxd1 7. Kf7 $18) 5. Bd2 Nxd1 6. Bc1 $18 {theme: change of sacrifices} 1-0

[Event "1.p. 12th Ty UAPA. Sec.Draw"] [Site ""] [Date "2020.08.25"] [Round ""] [White "Alain Pallier"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "6N1/8/2Kp2R1/1P6/pp6/P2pp2k/4n3/8 w - - 0 1"] [PlyCount "25"] [EventDate "2020"] 
 1. b6 (1. Rxd6 $2 Ng3 $1 2. b6 e2 3. b7 e1=Q 4. b8=Q bxa3 $19 {e.g.} 5. Qc8+ Kg2 6. Kd7 a2 7. Qc6+ Ne4 8. Rg6+ Kf1 9. Nf6 a1=Q $19) 1... Nd4+ 2. Kd7 $1 (2. Kc7 $2 d2 3. b7 d1=Q 4. Rh6+ Kg2 $19) 2... e2 3. b7 d2 (3... e1=Q 4. b8=Q d2 5. Qa8 Qf1 {ans e.g.} 6. Rh6+ Kg3 7. Rg6+ $11) 4. b8=Q d1=Q 5. Qa8 $3 ({ Thematic Try :} 5. Rh6+ $2 Kg2 6. Rg6+ (6. Qa8+ Nf3 $19) 6... Kf2 $1 (6... Kf3 $2 7. Qf8+ Ke3 8. Rg4 $1 Kd3 9. Qxd6 e1=Q 10. Rxd4+ Kc2 {e.g..} 11. Nf6 Qf3 12. Rc4+ Kb3 13. Rxb4+ $11) 7. Rf6+ Nf3 8. Nh6 e1=Q 9. Ng4+ Ke2 10. Re6+ Ne5+ $1 11. Nxe5 dxe5+ {with (double) countercheck and Black wins.}) (5. Qf8 $2 e1=Q 6. Rh6+ Qh4 $1 (6... Kg2 $2 7. Rg6+ Qg3 8. Rxg3+ Kxg3 9. Qxd6+ $11) 7. Rxh4+ Kxh4 8. Qf2+ Kh3 9. Nf6 {e.g.} bxa3 10. Qe3+ Kg2 11. Qxa3 Qb3 12. Qxd6 Qb7+ 13. Ke8 Qa8+ 14. Kd7 Qa7+ 15. Kc8 a3 $19) (5. Qb7 $2 d5 $1 6. Rh6+ (6. Kd8 e1=Q 7. Qd7+ $19) 6... Kg2 $1 7. Qb8 e1=Q 8. Qh2+ Kf1 $19) (5. Nf6 $2 e1=Q 6. Qh8+ Qh4 7. Rh6 Qde1 8. axb4 a3 9. Rxh4+ Qxh4 $19) 5... d5 {Explaining why promoting d-pawn was stronger than promoting e-pawn. Now 6.Qxd5? Sf3 and White queen is pinned.} 6. Rh6+ $1 (6. Qf8 $2 e1=Q 7. Rh6+ Kg2 $1 { (with a different refutation now} ({no} 7... Qh4 $2 {as after 5.Qg8}) 8. Rg6+ Qg3 9. Rxg3+ Kxg3 10. Qd6+ Kh3 $19 {/g2-+}) 6... Kg2 7. Rg6+ (7. Qxd5+ $2 Nf3 $19) 7... Kf2 8. Qf8+ Nf3 (8... Ke3 9. Rg3+ $1 ({no} 9. Qe7+ $2 Kd3 $1 10. Rg3+ Kc2 $1 11. Qc5+ Kb2 12. Qxb4+ Nb3 $19) 9... Kd2 10. Qxb4+ Kc1 11. Rg2 $1 (11. Qc5+ $2 Nc2 12. Rg1 d4 $19) 11... Nb3 12. Qf4+ $1 (12. Qc3+ $2 Kb1 13. Qe5 Nc1 14. Ne7 d4 15. Qb5+ Qb3 16. Qf5+ d3 $19) (12. Rxe2 $2 Qxe2 13. Qxa4 Nc5+ $19) 12... Nd2 13. Rxe2 Qxe2 14. Qxa4 $11) 9. Nh6 $3 e1=Q 10. Ng4+ Kf1 (10... Ke2 11. Re6+ Kd2 12. Qf4+ Kc2 13. Ne3+ $11) 11. Nh2+ Kf2 (11... Ke2 12. Nxf3 $11) 12. Ng4+ $1 (12. Nxf3 $2 Qxf3 13. Rf6 Qee4 14. Rxf3+ Qxf3 15. Qxb4 Qe4 $19) 12... Kf1 13. Nh2+ $11 {positional draw} 1/2-1/2

[Event "1st Prize. FRME 6th 2020"] [Site ""] [Date "2020"] [Round ""] [White "Steffen Nielsen"] [Black ""] [Result "1/2-1/2"] [Annotator "Afek"] [SetUp "1"] [FEN "7k/8/8/3P4/8/5N1K/4pP2/r6B w - - 0 1"] [PlyCount "21"] [EventDate "2020"] 
 {The deepest and most original crystal clear concept in the entire field! To gain a draw White must predict a black rook sacrifice on g3 on move 10 and find a way to defend against it. The crucial decision must be taken already on the first move. A superb logical gem!} 1. Kg2 $1 {Locking in the bishop. Black was threatening both 1...Rxh1 and 1...Ra3. Ideally White would like to play Kh2, Bg2 and Bh3 slowly freeing his forces, but the following line shows why Kh2 fails.} ({Thematic try:} 1. Kh2 $2 Rf1 2. Bg2 (2. Kg2 Kg7 $19) 2... Rxf2 3. Ne1 Rf1 4. Nd3 Rd1 5. Kg3 Rxd3+ 6. Kf2 Rg3 $3 7. Be4 Re3 $19 (7... e1=Q+ $19)) 1... Rd1 2. d6 $3 ({Thematic Try:} 2. Kh2 $2 Rf1 $1 3. Bg2 (3. Kg2 Kg7 $19) 3... Rxf2 4. Ne1 Rf1 5. Nd3 Rd1 6. Kg3 Rxd3+ 7. Kf2 Rg3 $3 $19) 2... Rxd6 { White has lost the pawn on d5 for no obvious compensation.} 3. Kh2 $1 (3. Ne1 $2 Rd1 4. Nf3 Rf1 $19) (3. Kg1 $2 Rd3 4. Ne1 Rd1 $19) 3... Rd3 4. Ne1 Rd1 5. Nf3 Rf1 6. Bg2 $1 Rxf2 7. Ne1 Rf1 8. Nd3 Rd1 9. Kg3 $1 Rxd3+ 10. Kf2 Re3 11. Ke1 $11 1/2-1/2

[Event "1.p Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Steffen Nielsen"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "3bK3/4p1kN/6P1/2p5/5R1R/2n5/8/3q4 w - - 0 1"] [PlyCount "25"] [EventDate "2018"] 
 1. Nf8 {[%t Shrt] White must keep the pawn on g6 to create threats.} Nd5 (1... Nb5 2. Rh7+ Kg8 3. Rh8+ Kxh8 4. Ne6 {[%t Shrt] with a deadly double threat.}) ( 1... Qd6 {[%t Shrt] Now has a long forcing win:} 2. Rf7+ Kg8 3. g7 Qc6+ 4. Nd7 Qxd7+ 5. Kxd7 Kxf7 6. Rg4 Kg8 7. Kxd8 e5 8. Ke7 e4 9. Kf6 e3 10. Kg6 e2 11. Rf4 {[%t Shrt] and mate on the next move.} (11. Rh4)) (1... Ne4 2. Ne6+ (2. Rxe4) 2... Kxg6 3. Rxe4 Ba5 4. Kxe7) 2. Rh7+ Kg8 3. Rh8+ {!} Kxh8 4. Kf7 {[%t Shrt] Threat 5. g7#} Qh5 5. Rh4 Nf6 (5... Nf4 6. Ne6 Bc7 7. Nxf4 Qxh4 8. g7+ Kh7 9. g8=Q+) 6. Rh1 {[%t Shrt] !! Threatening 7. Nd7 Qxh1 8. g7+ Kh7 9. Nxf6+ Kh6 10. g8=Q and mate. [%t bLon] The key position has arrived. White has to find the right plan. He wants to play Nf8-d7 at the correct time. Now is not the time as Black responds 6.. Nd7 Qxh4 7. g7+ Kh7 8. Nxf6 Qxf6+. White has to find a better square for the rook.^13 [%t bLon]} (6. Rh2 {[%t Shrt] ? Threatening 7. Nd7 Qxh2 8. g7+ Kh7 9. Nxf6+ Kh6 10. Ng4+ winning. Black defends with a surprising manoeuvre} Bc7 7. Rh1 Bf4 8. Nd7 Bh6 {!}) (6. Rh3 {[%t Shrt] ? No threat. Black defends by} Bc7 (6... Bb6) (6... Ba5)) 6... e6 {[%t Shrt] !! Subtle defense, opening the line b7-f7 (but closing b3-f7)} 7. Rh3 {[%t Shrt] White now threatens 8. Nd7 Qxh3 9. g7+ Kh7 10. Nxf6+ Kh6 11. g8=Q, as Black has no check on b3.} (7. Nd7 Qxh1 8. g7+ Kh7 9. Nxf6+ Kh6 10. g8=Q Qb7+ {!}) 7... e5 {[%t Shrt] Opening the line b3-f7 (but closing c7-h2)} 8. Rh2 {!} (8. Nd7 {?} Qxh3 9. g7+ Kh7 10. Nxf6+ Kh6 11. g8=Q Qb3+) 8... e4 (8... Bc7 9. Nd7 e4 {[%t Shrt] transfers}) 9. Nd7 Bc7 10. Rh1 {[%t Shrt] ! Now this is (again) the right square, as Black will not have Qb7+.} (10. Rh3 {?} Qxh3 11. g7+ Kh7 12. Nxf6+ Kh6 13. g8=Q Qb3+) 10... Qxh1 11. g7+ Kh7 12. Nxf6+ Kh6 13. g8=Q { [%t Shrt] +?- There is no defence against mate on g6 og g7.} 1-0

[Event "1st prize FRME 2nd TT"] [Site ""] [Date "2020.08.16"] [Round ""] [White "Amatzia Avni, Yochanan Afek"] [Black ""] [Result "1-0"] [Annotator "stjef"] [SetUp "1"] [FEN "R6N/P2B1N1q/7p/1n5k/7P/8/6K1/8 w - - 0 1"] [PlyCount "15"] [EventDate "2020"] 
 {I am confident the composers of this study were marred by the difficulty of creating a natural introduction to his idea. Probably they noticed the possibility of adding an extra double knight sac on g6? But then no introduction is possible! Or at least I can’t find one. Too bad. Instead we have this artificial looking starting position and an unpleasant exchange on a7. On the bright side we have the moves 3...Kh5! 4. Kh3! and a pointed finish. All in all I think the stunning final combination will be widely known (or “shared”, as it is probably called now). It is the kind of thing where one wonders why no one found it before 2020.} 1. Bg4+ Kxg4 (1... Kxh4 2. Rc8 Nxa7 3. Rc4 $18) 2. Ng6 (2. Rg8+ $2 Qxg8 3. Nxh6+ Kxh4+ 4. Nxg8 Nxa7 $11) 2... Nxa7 (2... Kf5 3. Rf8 Qxg6+ 4. Ng5+ Kg4 5. a8=Q $18) (2... Kh5 3. Nfe5 {intending Rf8-f5+} Nd4 4. Kh3 Ne6 5. Kg3 Qc7 6. Rf8 Qc3+ 7. Nf3 Qc7+ 8. Nf4+ Nxf4 9. a8=Q Ne6+ 10. Kh3 $18) (2... Qg7 3. Nfe5+ Kf5 4. Rf8+ Qxf8 5. Nxf8 $18) 3. Rxa7 (3. Rh8 $2 Qxh8 (3... Qg7 $11)) 3... Kh5 4. Kh3 (4. Nf4+ Kxh4 $11) 4... Kxg6 5. Ne5+ Kh5 6. Ng6 $3 {Thematic move} Kxg6 (6... Qxg6 7. Ra5+) (6... Qxa7 7. Nf4#) 7. h5+ Kxh5 8. Rxh7 1-0

[Event"Prize11th Ty UAPA. Sec.Win "] [Site ""] [Date "2020"] [Round ""] [White "Oleg Pervakov & Alexander, Stavrietsky"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "2kN4/1p1q4/8/Bp5P/1P4P1/4P3/Q4R2/1K2b2r w - - 0 1"] [PlyCount "21"] [EventDate "2020"] 
 {о /\} 1. Rc2+ (1. Qc2+ $2 Bc3+ 2. Ka2 Qd5+ 3. Qb3 Ra1#) 1... Bc3+ $1 2. Rc1 Qh7+ $1 {Counterplay for perpetual check} (2... Qd3+ 3. Qc2 Rh2 4. Qxd3 Rb2+ 5. Ka1 Rc2+ {, and bishop c3 under blow} 6. Qxc3+ $1 $18) 3. e4 $1 ({But not} 3. Qc2 $2 Rh2 $1 4. Qf5+ Qxf5+ $1 5. gxf5 Rb2+ 6. Ka1 Rc2+ 7. Kb1 Rb2+ $11) 3... Qxe4+ 4. Qc2 Rh2 $1 (4... Rxc1+ 5. Kxc1 Qf4+ (5... Qe1+ 6. Qd1 Qf2 7. Qd3 $1 $18) 6. Kb1 Qf1+ 7. Ka2 Qc4+ 8. Ka3 Bxb4+ 9. Kb2 Bxa5 10. Nf7 $1 $18) 5. Nxb7 $1 {Openning diagonal a8-h1} ({Thematic try} 5. Nf7 $2 Qh7 $1 (5... Kb8 $2 6. Ng5 $1 $18) 6. Nd6+ Kb8 7. Bc7+ $5 Ka8 $1 8. Qxh7 Rb2+ 9. Ka1 Rc2+ 10. Kb1 Rb2+ $11) 5... Qh7 $1 6. Nd6+ Kb8 7. Bc7+ $1 Ka8 (7... Ka7 8. Nxb5+ $18) 8. Qe4+ $1 {Decisive check} Qxe4+ 9. Nxe4 Rb2+ 10. Ka1 Rc2+ 11. Nxc3 $18 1-0

[Event"1/2 p. 11th Ty UAPA sec.Draw"] [Site ""] [Date "2020"] [Round ""] [White "Janos Mikitovics"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2Q5/2p1p3/2P5/4q3/2K4p/3p2kN/8/8 w - - 0 1"] [PlyCount "31"] [EventDate "2020"] 
 1. Ng5 $3 {Diversion of the black queen with Sacrifice 1.} (1. Qd7 $2 d2 $3 $19 (1... Qd6 $2 2. Ng5 $3 $11)) 1... Qxg5 (1... d2 2. Qh3+ $11) (1... Kf4 2. Ne6+ $11 (2. Nf7 $2 Qe4+ 3. Kc3 Qxc6+ $19) (2. Nh3+ $2 Ke3 3. Qg8 Qd4+ 4. Kb3 Qb6+ $19)) 2. Qxc7+ e5 $1 3. Kxd3 (3. Qb6 $2 d2 $1 (3... Qf4+ $2 4. Kxd3 $11) 4. Qg1+ Kf4 5. Qf2+ Ke4 6. Qe2+ Qe3 7. Qg4+ Qf4 8. Qe2+ Kf5+ $19) 3... h3 4. Qh7 $1 Qg4 (4... h2 5. c7 Qg4 6. Kc3 {main}) 5. c7 $1 h2 $1 6. Kc3 $3 (6. Ke3 $2 e4 $1 7. Kd4 Qd1+ $19) 6... e4 $1 (6... Qd4+ 7. Kc2 $11) 7. Kb4 $3 { White "helps" activate the black battery.} (7. Kd4 $2 Qd1+ $19) (7. Kb2 $2 Qe2+ $19 (7... e3 $2 8. Ka3 {main})) 7... e3+ $1 (7... Qe6 8. Qg7+ $1 $11 (8. Kc5 $2 e3 $1 $19)) 8. Ka3 $3 (8. Kc3 $2 Kg2 $1 $19 (8... e2 $2 9. Kd2 $1 Kg2 10. c8=Q $3 $11)) 8... e2 9. c8=Q $3 {Diversion of the black queen with Sacrifice 2.} ( 9. Qd3+ $2 Qf3 10. Qxf3+ Kxf3 11. c8=Q e1=Q 12. Qh3+ Qg3 $19) 9... Qxc8 10. Qd3+ $1 Kh4 (10... Kf4 11. Qd4+ $1 (11. Qd2+ $2 Kf5 $1 12. Qd3+ Kf6 $1 13. Qd4+ Kg6 $1 14. Qe4+ Qf5 $19) 11... Kf5 12. Qf2+ Kg6 13. Qg3+ {main}) 11. Qh7+ $1 Kg4 (11... Kg3 12. Qd3+ {perpetual check or} Kf2 13. Qd4+ $11) 12. Qe4+ $1 (12. Qg6+ $2 Kf4 $1 (12... Kf3 $2 13. Qd3+ $11) 13. Qh6+ Ke4 14. Qh4+ Kd5 15. Qh5+ Kc6 $19) (12. Qg7+ $2 Kf3 $1 (12... Kf4 $2 13. Qd4+ $11) 13. Qf6+ Ke4 $3 14. Qh4+ Kd5 15. Qh5+ Kc6 $19) 12... Kg5 13. Qe3+ $1 (13. Qe7+ $2 Kf4 14. Qd6+ Ke4 15. Qe7+ Kd5 16. Qg5+ Kc6 17. Qf6+ Kb7 $19) 13... Kg6 14. Qg3+ Kf6 15. Qh4+ $1 Kg6 16. Qg3+ {perpetual check} (16. Qe4+ $2 Qf5 $19) 1/2-1/2

[Event "Nielsen 45 JT 2020"] [Site ""] [Date "2020.05.20"] [Round ""] [White "O. Pervakov & K. Sumbatyan"] [Black "1st prize"] [Result "1-0"] [Annotator ""] [SetUp "1"] [FEN "7N/N7/7P/4n3/2p2k1P/8/7K/8 w - - 0 1"] [PlyCount "17"] [EventDate "2020"] 
 {An absolute masterpiece. The introduction is pleasant, subtle and eventful and with a number of likely tries that just fail. But the climax is just amazing. Black plays for either capturing White's last pawn or for stalemate, and at the very last move of the study White has the option between stalemate.. . and a sudden mate! Despite Harold van der Heijdens database showing a fair share of studies with three knights against a queen, I have not been able to find anything resembling a significant predecessor to this study. The move 8. . .Kh5!!? might have been the perfect candidate for Ed van de Gevel's recent Disadvantage of the advantage tourney. Advantage: Stalemate. Disadvantage: Mate :-) A (cooked) study by Argunov, commendation, Selivanov 30 JT, 1997  (HHDBV #16702) shows a somewhat comparable mechanism, the thematic move being 3..Ka2 hoping for 4. Rxf1 stalemate, but allowing 5. Ra8+ Kb1 6. Ra1+ winning the queen (see appendix).} 1. h7 $1 ({Try} 1. Kh3 $2 c3 2. Nb5 c2 3. Nd4 c1=N $1 {Black underpromotion} 4. Nc6 $5 Ncd3 $1 5. h7 Kf5 6. Ng6 $5 Nf7 $1 $11 ( 6... Nxg6 $2 7. Ne7+ $1 $18)) (1. Nc6 $2 Ng4+ 2. Kh3 Nxh6 3. Ng6+ Kf5 $11) 1... c3 (1... Kf5 2. Kg3 c3 3. Nb5 c2 (3... Kf6 4. Nxc3 Kg7 5. Kf4 $1 Nd3+ 6. Ke3 Ne5 7. Ke4 $18) 4. Nd4+ Kf6 5. Nxc2 Kg7 6. Kf4 $1 Nd3+ 7. Ke3 Ne5 8. Ke4 $18) 2. Nc6 $1 {Sacrifice...} (2. Nb5 $2 c2 3. Nd4 Nf3+ $11) 2... Nf3+ $1 (2... c2 3. Nxe5 $18) 3. Kh3 Ng5+ $1 {...but counter-sacrifice!} 4. hxg5 c2 5. Nd4 $1 ({ Thematic try} 5. Nb4 $2 c1=Q 6. Nd3+ Kxg5 7. Nf7+ Kg6 8. h8=N+ Kh5 $1 9. Nxc1 $11 {Stalemate} (9. Nf4+ $4 Qxf4 $19)) 5... c1=Q 6. Ne2+ Kxg5 7. Nf7+ (7. Nxc1 $2 Kh6 $11) 7... Kg6 8. h8=N+ $1 {Now White underpromotion!} Kh5 $5 9. Ng3# { Model mate} (9. Nxc1 $2 $11 {Stalemate}) 1-0