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Studies awarded for the
Ukraine 21st Team Championship 2023
With comments of judge Gady Costeff.
[Event "1.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Tarasiuk=V"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "6kN/2pp3b/8/4P3/6K1/4RPRp/3p3r/8 w - - 0 1"] [PlyCount "27"] [EventDate "2023"] 1. e6 $1 dxe6 2. Kf4+ Kf8 (2... Kxh8 3. Rxe6) 3. Ra3 $1 (3. Rb3 $2 Rg2 4. Rb8+ Ke7 5. Rxh3 e5+ 6. Kxe5 (6. Ke3 d1=N#) 6... Re2+ 7. Kf4 Bd3 8. Rh1 Re1 $19) 3... Rg2 4. Ra8+ Ke7 5. Rxh3 e5+ $1 (5... d1=Q 6. Rxh7+ Kd6 7. Rd8+) 6. Kxe5 Bb1 (6... Re2+ 7. Kf4 Bd3 8. Rh1 Re1 9. Ra1 $11) 7. Ng6+ $1 Bxg6 8. Ra1 $1 (8. Rh1 $2 Re2+ 9. Kd5 Bh5 $1 10. Raa1 Bxf3+) 8... Re2+ 9. Kd5 Re1 10. Rh1 Rxh1 ( 10... Rxa1 11. Rxa1 Bc2 12. Kc6 Kd8 13. Ra8+ Ke7 14. Ra1 $11) 11. Rxh1 Bc2 12. Kc6 Kd8 13. Rh8+ Ke7 14. Rh1 $11 { Echoed main variations, with Ra1/Rh1. The logical tries: 3.Ra3/Rb3? and 8.Ra1/Rh1? enrich the study. Both sides play actively. }1/2-1/2
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[Event "2.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Eilazyan=E"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2B5/3K2R1/pP3k2/2P2p2/2r5/1p3n2/8/8 w - - 0 1"] [PlyCount "39"] [EventDate "2023"] 1. b7 $1 (1. Rg2 a5 2. Rf2 a4 3. Kd6 Nd4 $19) 1... Rb4 2. Rh7 Ne5+ 3. Kd6 b2 4. Rh6+ Ng6 5. Rh1 b1=Q 6. Rxb1 Rxb1 7. c6 Ne7 8. c7 Rb5 (8... Rb6+ 9. Kd7 $1) ( 8... Rd1+ 9. Kc5 Rc1+ 10. Kd6) 9. Kd7 Kf7 10. Kd8 $1 Nc6+ 11. Kd7 Nb4 12. Kd8 Nc6+ 13. Kd7 Ne7 14. Kd8 Kf8 15. Kd7 Kf7 16. Kd8 Nc6+ 17. Kd7 Na5 18. Kd6 $1 Nc4+ 19. Kd7 Na5 20. Kd6 $11 { Three variations of positional draw through repetition and good economy. There is no paradox given that white has two pawns on the 7th rank. } 1/2-1/2
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[Event "3/4.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Kopyl=V Pogorelov=V Rudenko=T"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "7K/4N3/5nPP/4P3/1N1P1p1r/3P3k/2p4P/4b1n1 w - - 0 1"] [PlyCount "29"] [EventDate "2023"] 1. Nxc2 Rxh6+ 2. Kg7 Ng4 3. Nxe1 f3 4. Nxf3 Nxf3 5. Nf5 (5. Ng8 $2 Rh5 6. Nf6 Rh4 7. Nxg4 Rxg4 8. Kf7 Nxd4 9. g7 Nf5 10. g8=N Kh4 11. Nf6 Rg7+ 12. Ke6 Kg5 $19) 5... Rh5 6. Ng3 Rh4 7. Nf5 Rh5 8. Ng3 Rg5 9. Ne4 Rf5 10. Ng3 Rf4 11. Ne2 $1 Rf5 12. Ng3 Rg5 13. Ne4 Rh5 14. Ng3 Rh6 15. Nf5 $11 { Perpetual pursuit of the black rook by the white knight. The claim that 5.Ng8 is a dual draw is refuted by the analysis above. Kasparian, p Kubbel MT, 1946 is a more efficient matrix and Troitzky, Magyar Sakkvilag, 1930 shows it over the entire board, though with duals } 1/2-1/2
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[Event "3/4.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Pogorelov=V"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2kN4/5p1p/p5P1/2p5/4K3/P1P4p/1P4rP/8 w - - 0 1"] [PlyCount "17"] [EventDate "2023"] 1. gxh7 Rg4+ 2. Kf5 Rh4 3. Nxf7 Rxh7 4. Kg6 Rh4 5. Kg5 Rh7 6. Kg6 Rh4 7. Kg5 Ra4 8. c4 $1 Kc7 9. Ne5 $11 { Rejecting a repetition on the kingside, the rook is refreshingly incarcerated on the queenside. } 1/2-1/2
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[Event "5/6.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Borodavkin=S"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "4nk1N/3p2bp/6PP/8/5NP1/2B2q1p/2KP3P/8 w - - 0 1"] [PlyCount "37"] [EventDate "2023"] 1. gxh7 Qe4+ 2. d3 Qxh7 3. Nfg6+ Kg8 4. Ne7+ Kf8 5. Neg6+ Kg8 6. Ne7+ Kxh8 7. hxg7+ Nxg7 8. Bd2 $1 Ne6 9. Bc3+ Ng7 10. Bd2 d6 11. Bc1 $1 Ne6 12. Bb2+ Ng7 13. Bc1 d5 14. Bf4 $1 Ne6 15. Be5+ Ng7 16. Bf4 d4 17. Kd2 $1 Ne6 18. Be5+ Ng7 19. Bf4 $11 { This study is partially anticipated by Stavrietsky, 1st prize Babich & Olimpliev MT. 2017. That study shows 2 positional draws, with the white bishop on f4 and d2. The new study adds the same positional draw with Bc1. The transition between the three positional draws is engineered ingenuously through the a duel between the black d-pawn and the white bishop. The new study improves the economy by eliminating two officers, at the cost of 3 pawns. The fourth positional draw claimed by the author only changes the white king position and the fifth is in the introduction, both of which are less valuable. } 1/2-1/2
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[Event "5/6.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Eilazyan=E"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1r2k3/2p1P3/2P1PP2/P4p1K/4r2p/N3bQ1b/p1PP4/8 w - - 0 1"] [PlyCount "59"] [EventDate "2023"] 1. Kg6 Bg4 2. Qh1 Bd1 3. Qxd1 Rg4+ 4. Kxf5 Rf4+ 5. Ke5 $1 (5. Kg6 $2 Rxf6+ 6. Kxf6 Bd4+ 7. Kf5 a1=Q) 5... a1=Q+ 6. Qxa1 Bd4+ 7. Kxf4 $1 (7. Qxd4 $2 Rxd4 8. Kxd4 h3 9. a6 h2 10. a7 Ra8 11. Nb5 Rxa7 12. Nxa7 h1=Q 13. Nc8 Qh4+ 14. Ke5 Qg5+) 7... Bxa1 8. c3 $1 (8. a6 $2 Bxf6 9. a7 Ra8 10. Nb5 Kxe7 $1 11. d4 h3 12. Kg3 Rh8 13. a8=Q Rxa8 $19) 8... h3 9. a6 h2 10. a7 Ra8 11. Nb5 Rxa7 12. Nxa7 h1=Q 13. Nc8 Qh6+ 14. Kf5 Qh3+ 15. Ke5 Bxc3+ 16. dxc3 Qxc3+ 17. Kf5 Qc5+ 18. Ke4 $1 (18. Kg6 $2 Qc2+ 19. Kg5 Qd2+ 20. Kg6 Qg2+ 21. Kf5 Qd5+) 18... Qxc6+ 19. Ke5 Qb5+ 20. Kf4 $1 Qc4+ 21. Ke5 Qc3+ 22. Kf5 Qh3+ 23. Ke5 Qh8 24. Kf5 Qh5+ 25. Kf4 Qh4+ 26. Kf5 Qf2+ 27. Ke5 Qb2+ 28. Kf5 Qb5+ 29. Kf4 Qc4+ 30. Ke5 $11 { After 14.Nc8 we have a perpetual check in which the white king must defend his central pawns and the black queen must keep checking to defend against the mate threat. The many captures in the first 13 moves reduce the impression. } 1/2-1/2
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[Event "7.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Maly=I"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "K7/8/1q6/4N3/8/8/R7/3k4 w - - 0 1"] [PlyCount "17"] [EventDate "2023"] 1. Rd2+ Kc1 (1... Ke1 2. Nf3+ Kf1 3. Nh2+ Kg1 4. Nf3+ Kf1 5. Nh2+) 2. Rd5 Kc2 3. Rd2+ Kc3 4. Rd3+ Kb4 5. Rd4+ Kb5 6. Rd7 $1 (6. Rd5+ $2 Ka6 7. Rd7 Qc5 $19) 6... Ka6 7. Nd3 $1 Qc6+ 8. Kb8 Kb6 9. Ne5 $11 { The black king travels from d1 to a6 but it is still a draw. Such economy is compelling and defending against a powerful queen is challenging, but the artistic element is less pronounced. } 1/2-1/2
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[Event "8.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Borodavkin=S"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "6q1/2pb2pN/4p2n/1pK2kP1/2N5/6R1/1P4P1/8 w - - 0 1"] [PlyCount "17"] [EventDate "2023"] 1. Rf3+ Ke4 (1... Kg4 2. Ne5+ Kh4 3.Rh3#) 2. Re3+ Kf5 3. Rf3+ Kg6 4. Ne5+ Kxh7 5. g6+ Kh8 6. Nxd7 Nf5 7. Rh3+ Nh6 8. Rf3 e5 9. Rf8 $11 Qxf8+ 10. Nxf8{ Two positional draws. Two officers are captured without moving and the queen is captured on the last move after moving a single square. } 1/2-1/2
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[Event "9.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Tarasiuk=V Samilo=V"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "7B/2p5/B1p2pp1/P7/2p5/P5pp/P1kPP1b1/R3K1R1 b Q - 0 1"] [PlyCount "16"] [EventDate "2023"] 1... h2 2. Rf1 $1 (2. Rh1 $2 Bxh1 3. Bxc4 Bd5 4. Bd3+ Kb2 5. Bxf6+ Kxa3 6. Be7+ (6. O-O-O {(impossible move)} g2 7. Bd4 h1=Q 8. e4 Qh3 9. Bc2 $11) 6... Ka4 $19 ) 2... Bxf1 3. Bxc4 h1=Q 4. Bb3+ $1 Kb2 5. Bxf6+ Kxa3 6. Be7+ c5 7. Bxc5+ Kb2 8. Bd4+ Ka3 9. Bc5+ $11 { 2.Rf1 deflects Bg2 off the long diagonal to enable perpetual check. The claim that 2.Rh1 fails because castling is illegal is incorrect as even if 7.0-0-0 was possible, it would still lose to 7..g2 or 7..Kxa5. } 1/2-1/2
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[Event "10/11.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Yuziuk=V"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1k6/2p5/p1P5/p4B1b/P6p/p6P/P7/1K6 w - - 0 1"] [PlyCount "12"] [EventDate "2023"] 1. Ka1 Be8 (1... Bd1 2. Bc2 Be2 3. Bd3 Bf3 4. Be4 Bxe4 $11) 2. Bd7 Bg6 3. Bf5 Bf7 4. Bg6 Bd5 5. Be4 Bc4 6. Bd3 Bxd3 $11 { Moravec, Vecherni List, 1927 and Kovalenko, Shakhmaty v SSSR, 1965, show better thematic content and better economy. } 1/2-1/2
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[Event "10/11.p Ukraine 21st Team Championship"] [Site ""] [Date "2023"] [Round ""] [White "Topko=L"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "7q/7k/R7/8/3p3p/p1p1B1Pp/P5PK/8 w - - 0 1"] [PlyCount "17"] [EventDate "2023"] 1. Rh6+ Kg7 2. Bxd4+ Kxh6 3. Bxh8 c2 4. Be5 hxg3+ 5. Kxh3 $1 Kg5 (5... c1=Q 6. Bf4+ Qxf4 $11) 6. Bd4 $1 Kf4 (6... c1=Q 7. Be3+ Qxe3 $11) 7. Bg7 $1 Kg5 8. Bd4 Kf4 9. Bg7 $11 { With the capture 5.Kxh3 the king arrives at the thematic square. Everything else is anticipated by Richter, Narodni Listy, 1933. } 1/2-1/2
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