www.arves.org - Schach 2018-2019

Studies awarded for the Schach 2018-2019 magazine torunament.

[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 "3.p Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Arpad Rusz"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "5R2/4KPr1/3P4/1kq5/7P/p1pP3p/8/1NR5 w - - 0 1"] [EventDate "2017"] 
 1. Nxa3+ $1 (1. Nxc3+ $2 Ka6 $11) 1... Qxa3 (1... Ka6 2. Nc4 h2 3. Ra8+ Kb7 4. Ra5 $18) 2. Rb8+ {Both dangerous white pawns are pinned but black unpins the d6 pawn and sets a trap:} Kc5 $1 3. Rxc3+ $1 ({It was very tempting to push the unpinned pawn:} 3. d7 $2 Qa7 $1 {Both pawns are pinned again.} (3... Rxf7+ $2 4. Kxf7 Qa2+ 5. Ke7 Qe2+ 6. Kd8 $1 Qxd3 7. Rb3 $18) 4. Rc8+ Kd5 5. Rf1 h2 6. Ke8 Qxd7+ $1 (6... Qe3+ $2 7. Kf8 Rxf7+ $1 8. Rxf7 Qh6+ 9. Kg8 Qg6+ 10. Rg7 Qe6+ 11. Kh7 Qf5+ 12. Kh8 $1 Qxd7 13. Rxd7+ Ke6 14. Re8+ $1 Kxd7 15. Re1 $18) 7. Kxd7 Rxf7+ $1 8. Rxf7 h1=Q $11) 3... Qxc3 4. Rc8+ Kd4 5. Rxc3 Rxf7+ $1 (5... Kxc3 6. Ke8 $18) 6. Ke6 $3 {White is very polite and lets Black to be the first to take the rook.} ({Thematic try:} 6. Kxf7 $2 Kxc3 {mutual zugzwang} 7. d7 h2 {mutual zugzwang} 8. d8=Q h1=Q {mutual zugzwang} 9. d4 Qb7+ 10. Ke6 (10. Qe7 Qd5+ {perpetual check} 11. Qe6 Qb7+ 12. Qe7 Qd5+ {perpetual check}) 10... Qe4+ $11 {The e4-square was no longer controlled.}) 6... Kxc3 7. Kxf7 {mutual zugzwang} h2 8. d7 {mutual zugzwang} h1=Q {Black is also let to be the first to promote the pawn.} 9. d8=Q {mutual zugzwang} Qb7+ {Now we see the reason for white's eccentric play: the black queen has to leave its ideal square.} ( 9... Qf3+ 10. Qf6+ $18) 10. Ke6 $1 {Contrary to the thematic try, now there is no check on e4.} Qh1 {The black que en returns to h1 but something has changed: the white king is protecting the d5 square!} 11. Qa5+ $1 Kxd3 12. Qd5+ 1-0

[Event "4.p Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Gunther Sonntag"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "6K1/6P1/4P1P1/4n1k1/8/4q3/1R2N3/8 w - - 0 1"] [EventDate "2018"] 
 1. Ng3 $1 (1. Nd4 $2 Qxd4 2. e7 Qd7 3. Rg2+ Kf6 4. e8=N+ Qxe8+ $19) (1. Ng1 $2 Kxg6 2. Rg2+ Kf6 $19) 1... Kxg6 (1... Ng4 2. Kh8 Nf6 3. Rg2 Qxe6 4. Ne2+ { /Ne4+=}) (1... Nxg6 2. Rb5+ Kf6 3. Nh5+ Kxe6 4. Kh7 Ne7 5. g8=Q+ Nxg8 6. Kxg8 Qg1+ 7. Ng7+ Kf6) 2. Rb6 $1 (2. Rg2 $2 Ng4 $1 3. Nf5 Kxf5 4. Kf8 Qh6 {/Kf6-+}) (2. e7 $2 Nc6 3. Re2 Nxe7+ $19) 2... Qxb6 ({main} 2... Nd7 3. exd7+ Qxb6 4. Kh8 Qb2 (4... Qd4 5. Nf5 $1 (5. Nh5 $2 Kf7 $1 6. Kh7 Qe4+ (6... Qg4 $2 {/Qg1?} 7. d8=N+ $1 $11) 7. Kh8 Qe5 {/Qa8+-+}) 5... Kxf5 6. d8=Q Qxd8+ 7. g8=Q $11) 5. Nh5 $1 Qe5 6. Nf4+ $1 (6. d8=Q $2 Qxh5+ 7. Kg8 Qh7+ 8. Kf8 Qxg7+ 9. Ke8 Qf7#) 6... Kf7 7. d8=N+ $1 $11) (2... Nc4 3. Rc6 $11) 3. Kh8 Nf7+ 4. exf7 Qf6 5. f8=N+ $1 (5. f8=Q $2 Qh4+ $19) (5. Nh5 $2 Qe5 $1 $19) 5... Kh6 6. Nf5+ $1 Qxf5 7. g8=N+ $1 Kg5 (7... Kh5 8. Kg7 Qf1 9. Ne7 Qa1+ 10. Kf7 Qf1+ 11. Kg7 $11) 8. Nh7+ Kh5 9. Nhf6+ Kg5 10. Nh7+ Kf4 11. Kg7 Qg4+ 12. Kf7 Qd7+ 13. Kg6 Qd3+ 14. Kg7 Kf5 15. Nh6+ Ke5 16. Ng8 Ke6 17. Nf8+ $11 1/2-1/2

[Event "5.hm Schach 2018-2019"] [Site ""] [Date "2019.12"] [Round ""] [White "Martin Minski"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "6K1/8/2b5/7q/6k1/8/1p5P/2Q5 w - - 0 1"] [PlyCount "42"] [EventDate "2019"] 
 1. h3+ $1 (1. Qg1+ $2 Kf4 $1 $19) (1. Qc4+ $2 Kg5 $1 2. Qc5+ Bd5+ $1 3. Qxd5+ Kh6 {/Kh4-+}) 1... Kh4 $1 (1... Qxh3 2. Qxb2 $11) 2. Qe1+ $1 ({logical try} 2. Qc4+ $2 Kg5 $1 3. Qc5+ Bd5+ $1 (3... Kh6 $2 4. Qf8+ Kg5 5. Qc5+) 4. Qxd5+ Kh6 5. Qe6+ Qg6+ $19 {position X}) 2... Kxh3 3. Qc3+ Kh4 (3... Bf3 4. Qxb2 Bd5+ 5. Kg7 Qf7+ 6. Kh6 $11) 4. Qe1+ Kg4 5. Qb4+ (5. Qe2+ $2 Bf3 $19) 5... Kg5 6. Qc5+ (6. Qd2+ $2 Kf5 $1 $19) 6... Kh4 7. Qf2+ Kg5 (7... Kg4 8. Qd4+ Kf5 9. Qc5+ $11) 8. Qc5+ Kh6 9. Qf8+ Kg5 (9... Kg6 10. Qd6+ Kf5 11. Qc5+ $11) 10. Qc5+ Bd5+ $1 11. Qxd5+ Kh6 (11... Kh4 12. Qh1+ $11) 12. Qe6+ $1 Qg6+ {position X without the wPh3} 13. Kh8 $1 b1=Q (13... Qxe6 {model stalemate}) 14. Qe3+ (14. Qh3+ $2 Qh5 15. Qe3+ (15. Qe6+ Kg5+ $19) 15... Kg6+ $19) 14... Qg5 15. Qe6+ (15. Qb6+ $2 Qbg6 $19) 15... Kh5 (15... Qbg6 16. Qh3+ Q5h5 17. Qe3+ Qgg5 18. Qe6+ Qhg6 19. Qh3+ Q5h5 20. Qe3+ $11 {perpetual check}) 16. Qf7+ Qgg6 (16... Kg4 17. Qf3+ $1 Kxf3 {stalemate}) 17. Qf3+ Qg4 18. Qf7+ Qbg6 (18... Kh4 19. Qf2+ Qg3 (19... Kg5 20. Qf6+ $1 Kxf6 {stalemate}) 20. Qf6+ Kh3 (20... Kg4 21. Qg6+ $1 Qxg6 { stalemate}) 21. Qf5+ $1 Qxf5 {stalemate}) 19. Qf5+ $3 {a rare picture} Q6g5 ( 19... Q6xf5 {stalemate}) (19... Q4xf5 {stalemate}) 20. Qh7+ Qh6 21. Qxh6+ Kxh6 {stalemate, after an edgame by Grigoriants - Carlsen, World Blitz Championship 2018,  http://www.chessgames.com/perl/  chessgame?gid=1940540} 1/2-1/2

[Event "1.c Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Pavel Arestov"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1N6/5p2/1r5P/7K/4k3/1b6/4BP2/8 w - - 0 1"] [PlyCount "17"] [EventDate "2017"] 
 1. Nd7 $1 (1. h7 $2 Rxb8 $11) 1... Rg6 $1 (1... Rc6 2. h7 (2. Bf3+ $2 Kxf3 3. Ne5+ Kf4 4. Nxc6 Bc2 $11) 2... Rc8 3. Nf6+ Kf4 4. Ng8 Rc1 5. Kh6 Rc6+ 6. Kg7 Rg6+ 7. Kf8 $18) (1... Re6 2. h7 Re8 3. Nf6+ {fork, +-.}) 2. Bd3+ $1 (2. h7 $2 Rg1 $1 3. Nf6+ Kf4 $1 4. Kh6 (4. h8=Q Rh1#) 4... Rg6+ $1 5. Kh5 Rg1 6. Kh6 Rg6+ {positional draw.}) (2. Nc5+ $2 Kf4 $1 3. Nd3+ (3. Nxb3 $2 Rg2 $19) 3... Ke4 4. h7 Rg1 $11) 2... Kxd3 3. Ne5+ Ke4 (3... Ke2 4. Nxg6 fxg6+ 5. Kg5 $1 Bg8 6. Kxg6 Bb3 (6... Kxf2 7. Kg7 $18) 7. f4 $18) 4. Nxg6 fxg6+ 5. Kg5 $1 (5. Kxg6 $2 Kf4 6. h7 Bc2+ $11) 5... Bg8 6. Kf6 $1 (6. Kxg6 $2 Be6 $3 7. f3+ Kf4 8. h7 Bf5+ $11 ) 6... Kf4 7. Kg7 $1 (7. f3 $2 g5 $1 8. Kg7 g4 $1 9. fxg4 Kg5 $1 10. Kxg8 Kxh6 $11) 7... Kg5 8. f3 $1 ({thematic try:} 8. f4+ $2 Kh5 {zz} 9. Kxg8 Kxh6 $11) ( 8. Kxg8 $2 Kxh6 $11) 8... Kh5 9. f4 $1 {zz win} 1-0

[Event "2.c Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Lubos Kekely"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2NB4/rp1P4/8/1P2p3/1Pk2n2/8/pPK5/8 w - - 0 1"] [PlyCount "27"] [EventDate "2017"] 
 1. Ba5 $1 {refusal to capture} (1. b3+ $2 Kd5 2. Ba5 a1=Q 3. d8=Q+ Ke4 4. Nd6+ Kf3 5. Nc4 b6 6. Qxb6 Qa2+ 7. Nb2 Rh7 8. Qg1 Rh3 9. Bb6 Ke4 10. Bc5 Qxb3+ 11. Kb1 Qf3 12. Qf2 Qxf2 13. Bxf2 Rb3 $19) 1... Ne6 (1... a1=Q 2. d8=Q Qa4+ 3. Kd2 Kb3 4. Nxa7 Qa1 5. Qg8+ Kxb2 6. Qc4 Qg1 7. Qc2+ Ka3 8. Qc1+ Qxc1+ 9. Kxc1 Nd5 10. Bd8 Kxb4 11. Kd2 $11) 2. b3+ Kd4 $1 3. Kb2 Ra8 4. Kxa2 e4 (4... b6 5. Nxb6 Rd8 6. Kb2 e4 7. Kc2 e3 8. Nc4 $11) 5. Kb2 $1 (5. Kb1 $2 e3 6. Bb6+ Kd3 7. Bxe3 Kxe3 8. d8=Q Nxd8 9. Nb6 Rb8 10. Nd7 Rc8 11. Nb6 Rc3 12. Nd5+ Kd4 13. Nxc3 Kxc3 $19) 5... e3 6. Bb6+ $1 (6. Bc7 $2 e2 7. Bg3 Ke3 8. Be1 Kf3 9. Kc2 Kg2 10. Bh4 Kf1 $19) 6... Kd3 7. Bxe3 $1 Kxe3 8. d8=Q $1 Nxd8 9. Nb6 Ra7 10. Nc8 { switchback} Ra8 11. Nb6 {switchback} Rb8 12. Nd7 Rc8 13. Nb6 {swithcback} Rb8 ( 13... Rc7 14. Nd5+ Kd4 15. Nxc7 $11) 14. Nd7 {switchback - positional draw with active blocking. Triple refusal to capture of rook. Rook in trap. Switchbacks.} 1/2-1/2

[Event "4.c Schach 2018-2019"] [Site ""] [Date "2018"] [Round ""] [White "Michal Hlinka and Mario Garcia"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/1pK2B2/kr6/8/1P5R/pP6/5p2/8 w - - 0 1"] [PlyCount "23"] [EventDate "2017"] 
 {Theme: Elimination of the threat of stalemate in the black counterplay} 1. Bc4+ $1 (1. b5+ $2 Rxb5 2. Bc4 Ka5 3. Bxb5 Kxb5 4. Rh1 Kb4 $11) 1... Ka7 2. b5 $1 (2. Rh1 Rg6 $11) 2... Rg6 3. Bf7 $1 (3. Bd5 $2 Rg7+ $1 $19) 3... Ra6 (3... f1=Q 4. Ra4+ Ra6 5. Rxa6+ bxa6 6. b6+ Ka8 7. Bd5#) 4. Rh1 Rf6 5. Bc4 Rg6 6. Rf1 $1 (6. Ra1 $2 Rg7+ $1 $11) 6... Rg7+ (6... a2 7. Ra1 Rg7+ 8. Kd6 Kb6 9. Rxa2 Rg2 10. Ra1 $18) 7. Kd6 (7. Kd8 $2 Rg2 8. Kc7 Rg7+ 9. Kd6 {is loss of time}) 7... Kb6 (7... Rg6+ 8. Kc5 Rf6 9. Kb4 a2 10. Ra1 Kb6 11. Bf1 $18) 8. Rxf2 Rg2 $1 9. Rf8 $1 (9. Rxg2 $2 a2 10. Rxa2 $11 {stalemate}) ({or} 9. Rf1 $2 a2 10. Ke5 Kc5 11. b6 Rd2 12. Ra1 Kxb6 13. b4 Rb2 $11) 9... a2 10. Ra8 $1 $18 (10. Rf1 $2 Rg1 11. Rxg1 a1=Q 12. Rxa1 {stalemate}) 10... Rd2+ 11. Ke5 {/e6} Kc5 12. Ra4 $1 $18 (12. Ra7 $2 Kb4 13. Ra4+ Kc3 $11) 1-0