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Studies awarded for the USA Magazine tournament Strategems 2012.
[Event "1.p"] [Site ""] [Date "2012"] [Round ""] [White "Pallier=A - E0222 "] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/4p3/R4B2/7q/B6P/3n4/7K/1k6 w - - 0 1"] [PlyCount "17"] [EventDate "2012"] 1. Bd1 $1 {(Threat of the mate Ra1#)} Qxd1 2. Ra1+ Kc2 3. Rxd1 Kxd1 4. Ba1 $3 { (first refusal of capture)} ({Thematic try} 4. Bxe7 $2 Ne5 $1 5. h5 (5. Kg3 Ng6 6. h5 Nxe7 7. h6 Nf5+ $11) 5... Ng4+ $1 6. Kg3 Nh6 7. Bg5 Ng8 $1 8. Kf2 Kc2 9. Ke2 Kc3 $1 $11) (4. Bg7 $2 Nf4 5. Kg3 Nh5+ $11) 4... Nf4 (4... Nf2 5. Kg3 Ne4+ 6. Kg4 {/f4} Nd6 7. h5 Nf7 8. Kf5 Ke2 9. Kg6 $18) (4... Ke2 5. Kg3 Ke3 6. h5 $18) 5. Kg3 e5 6. Kf3 $1 {(second refusal of capture)} ({Thematic try} 6. Bxe5 $2 Ng6 7. h5 Ne7 $1 8. Kf4 Ng8 9. Kg5 Ke2 $1 10. Kg6 Kf3 11. Kg7 Kg4 {/Ne7=}) ( 6. Kg4 $2 Ng6 $1 7. h5 Ne7 8. h6 Ng8 $11) 6... Kc2 ({main} 6... Kd2 7. Bxe5 (7. Ke4 $2 Ng6 8. h5 Ne7 9. h6 Ng8 10. h7 Nf6+ $11) 7... Ng6 8. Bf4+ $1 Kd3 9. h5 Ne7 (9... Nh4+ 10. Kg4 $18) 10. h6 $18) 7. Ke4 $1 {(third refusal of capture)} (7. Bxe5 $2 Ng6 8. h5 Nxe5+ 9. Kf4 Nf7 {/d7=}) (7. Kg4 $2 Ng6 8. h5 Ne7 9. Bxe5 (9. Kg5 Ng8 10. Kg6 e4 $1 11. Kg7 e3 12. Kxg8 e2 $11) 9... Ng8 10. Kf5 Kd3 11. Kg6 Ke4 12. Kg7 Kf5 13. Kxg8 Kg5 $11) 7... Ng6 8. h5 Nf4 9. h6 $18 {. Interesting dynamic play with two equivalent main lines and tries. Main tactical idea - "refusal tof capture". It's not easy to choose the move for the wB 4.Ba1!!} 1-0
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[Event "2.p"] [Site ""] [Date "2012"] [Round ""] [White "Mikitovics=J & Kalashnikov=, E0223."] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "5K2/8/3P4/5n2/1p5r/1k6/8/2R5 w - - 0 1"] [PlyCount "25"] [EventDate "2012"] 1. d7 Rh8+ 2. Kf7 Rh7+ 3. Ke8 Nd6+ 4. Kd8 Ka4 $1 (4... Nf7+ 5. Ke8 $1 Nd6+ ( 5... Ka4 $2 6. Rc6 $1 $11) 6. Kd8 $11) 5. Rc6 $1 (5. Ra1+ $2 Kb5 $19) 5... Rh8+ ({main A} 5... Nf7+ 6. Ke8 $1 Ne5 7. Ra6+ Kb5 8. Ra5+ $3 Kxa5 9. d8=Q+ $18) ( 5... Nb7+ 6. Kc8 $1 (6. Kc7 $2 Ka5 7. Kc8 b3 $1 8. Rc3 Nd6+ 9. Kb8 (9. Kc7 Nb5+ {fork}) 9... Rh8+ 10. Kc7 Nb5+ {fork}) 6... Kb5 7. Rg6 $11) 6. Ke7 $1 (6. Kc7 $2 Nb5+ 7. Kb6 Rd8 $19 (7... Rb8+ $2 8. Kc5 Rd8 9. Ra6+ Kb3 10. Kc6 Kc4 11. Rb6 Nd4+ 12. Kc7 $11)) 6... Nb7 (6... Nf5+ 7. Kf6 Rf8+ 8. Ke5 Rd8 9. Rc7 $11 (9. Ke6 Nd4+ $18 {fork})) 7. Rc7 $1 (7. Rc8 $2 Rh7+ 8. Ke6 Rh6+ 9. Ke5 Rh5+ 10. Kf6 Rd5 11. Ke6 Rd6+ {(Rb5)-+}) 7... Rh7+ 8. Ke8 $1 Nd6+ 9. Kf8 b3 ({main} 9... Nb5 10. Kg8 $1 (10. d8=Q Rh8+ $19) 10... Nxc7 11. d8=Q Rg7+ 12. Kh8 $1 $11 (12. Kf8 Ne6+ $19 {fork})) 10. Ra7+ Kb5 11. Ra3 Kc4 12. Rxb3 $1 Rh8+ (12... Kxb3 13. d8=Q Rh8+ 14. Ke7 $11) 13. Kg7 $11 (13. Ke7 $2 Nf5+ 14. Ke6 Nd4+ $19 {fork. Enough good play. It is necessary to notice that very little "blood shed" in the play. Dominates the tactical idea - fork, but they are held on the "second floor"}) 1/2-1/2
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[Event "3.p"] [Site ""] [Date "2012"] [Round ""] [White "Krug=P - E0216"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/2p1R3/N3N3/8/1K6/2n2b2/p2k1P1P/8 w - - 0 1"] [PlyCount "27"] [EventDate "2012"] {It is clear that White must prepare a fork on b3, but how?} 1. Nec5 $1 {only move} ({Thematic try} 1. Nac5 $2 Nd5+ 2. Kc4 Nxe7 3. Nb3+ Kc2 4. Ned4+ Kb2 5. Nxf3 Nc6 6. Nfd2 Ne5+ 7. Kb4 c5+ $1 8. Kxc5 Nf3 $1 $19) (1. Nd4 $2 Bd1 2. Rd7 Ke1 $19) 1... Bd5 (1... Nd5+ 2. Kc4 Nxe7 3. Nb3+ Kc2 4. Nb4+ Kb2 5. Nxa2 $11) 2. Rd7 Kc2 3. Nxc7 Bg8 4. N7e6 (4. Rd8 $2 a1=Q 5. Rxg8 Qb2+ {(b1)+-+}) 4... a1=Q 5. Rd2+ $1 Kb1 6. Nb3 Na2+ 7. Ka3 Qf6 8. Rd1+ Kc2 9. Rd2+ Kc3 10. Nec5 Qf8 11. Rd3+ Kc4 12. Kxa2 Kb4 13. Kb1 $1 (13. Kb2 $2 Bc4 14. Kc2 (14. f3 Bxd3 15. Nxd3+ Kc4 16. Kc2 Qf5 $19) 14... Qf5 $1 {zz and wins:} 15. h4 Qg6 16. h5 Qh7 17. f3 Qf5 18. f4 Bxd3+ $19) (13. Rd4+ $2 Bc4 $1 14. Kb1 Kc3 $19) 13... Bh7 ( 13... Qf5 14. Na6+ $11) 14. Kb2 $11 {. The play takes place dynamically with a little "blood", but the two white pawns are involved only as technical tools} 1/2-1/2
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[Event "1.HM"] [Site ""] [Date "2013"] [Round ""] [White "Krug=P - EO229"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/8/2P5/4n3/rN1n2kp/6P1/8/1RN4K w - - 0 1"] [PlyCount "27"] [EventDate "2013"] 1. c7 Ra8 2. Nd5 (2. Nbd3 $2 Nec6 $1 ({Not} 2... Rc8 $2 3. Nxe5+ Kf5 4. Ncd3 hxg3 5. Rf1+ Ke4 (5... Ke6 6. Rc1 Nb5 7. Rc6+ Kf5 8. Rc5 $18) 6. Rc1 Nb5 7. Rc4+ Kf5 8. Rc5 Nxc7 9. Kg1 Ke4 10. Rc4+ $18) 3. Ne5+ Kh3 4. Nxc6 Nxc6 $11) 2... Ne6 3. Nb6 (3. Rb4+ $2 Kf3 4. Nb6 Rh8 5. c8=Q Rxc8 6. Nxc8 hxg3 $11) 3... Nxc7 4. Nxa8 Nxa8 5. Rb8 Nc7 6. Rg8+ Kh3 7. g4 $1 (7. Ne2 $2 hxg3 8. Nxg3 Kh4 9. Nf5+ Kh5 $11) 7... Nxg4 8. Rf8 $1 {(threat of the mate Rf3#)} (8. Rc8 $2 Nd5 $1 $11) 8... Ne5 9. Rc8 $1 (9. Rf5 $2 Ng6 $1 10. Nd3 (10. Rg5 Nf4 $11) 10... Kg4 $11) 9... Na6 10. Re8 $1 (10. Ra8 $2 Nc5 $11) 10... Nf3 11. Rg8 (11. Nd3 $2 Kg4 $1 12. Re4+ Kg5 {/h5} 13. Kg2 Nd2 14. Ra4 h3+ $11) 11... Nc5 12. Ne2 Nd3 13. Rg2 Nd2 14. Ng1# {. The precise maneuvers of wR leads to the mate.} 1-0
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[Event "2.HM"] [Site ""] [Date "2012"] [Round ""] [White "Arestov=P - E0224 "] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/8/Qp1N3p/5P2/2p2p2/5r2/1NK2pk1/8 w - - 0 1"] [PlyCount "17"] [EventDate "2012"] 1. Qa1 $1 (1. Qxc4 $2 f1=Q 2. Qxf1+ Rxf1 3. f6 f3 4. f7 f2 5. f8=Q Rc1+ $11) 1... f1=Q 2. Qxf1+ Rxf1 (2... Kxf1 3. f6 Ra3 4. f7 Ra8 5. Ne8 $18) 3. f6 f3 $1 (3... Ra1 4. f7 Ra8 5. Ne8 $18) 4. f7 $1 (4. Nf5 $2 Ra1 $11) 4... f2 5. Nf5 $1 (5. f8=Q $2 Rc1+ $1 6. Kxc1 f1=Q+ $11) 5... Rc1+ $1 (5... Ra1 6. f8=Q f1=Q 7. Ne3+ $18) (5... Re1 6. Nd1 $1 Re2+ 7. Kc3 $1 f1=Q 8. Nfe3+ $18) 6. Kxc1 f1=Q+ 7. Nd1 $1 Qf4+ (7... Qxf5 8. Ne3+ $18) 8. Nde3+ Kf3 9. f8=Q $18 {. Not a bad work with good counterplay of Black. However, the first two moves gave nothing to the study. Also, not pleasing technical pawns...} 1-0
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[Event "Com."] [Site ""] [Date "2012"] [Round ""] [White "Mikhajlovski=Z - E0221 "] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "k7/P6P/1PPN3p/P7/1Np2pPK/5P2/2P5/q5b1 b - - 0 1"] [PlyCount "16"] [EventDate "2012"] {BTM} 1... Bxb6 (1... Bf2+ 2. Kh5 Qe5+ 3. Nf5) 2. h8=Q+ (2. g5 Bf2+ 3. Kh5 Qg7 4. gxh6 Qe5+ 5. Kg4 Qe6+ 6. Kh5 Qe5+) 2... Qxh8 3. axb6 Qd8+ 4. Kh3 Qxb6 5. c7 Qxc7 6. Nb5 Qb7 $1 7. Nd5 $3 (7. Na6 $2 Qxf3+ 8. Kh2 Qf2+ 9. Kh1 Qh4+ 10. Kg1 Qxg4+) 7... Qxb5 8. Nc7+ Kxa7 9. Nxb5+ $18 1-0
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[Event "Sp. p"] [Site ""] [Date "2012"] [Round ""] [White "Becker=R - E0231"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/8/2Q4p/8/K1B3qp/8/8/k7 w - - 0 1"] [PlyCount "29"] [EventDate "2012"] 1. Qf6+ ({Thematic try} 1. Ka3 $2 Qf5 $1 2. Qa8 Qc2 $1 3. Kb4+ (3. Qh8+ Kb1 4. Qd4 Qc1+ 5. Kb3 Qc2+ $11) 3... Kb1 4. Qh1+ Kb2 5. Qe1 h3 $1 6. Qe3 h2 7. Qa3+ Kb1 8. Bd3 h1=Q 9. Qb3+ Ka1 $11) 1... Kb1 2. Ka3 Qg3+ (2... Kc2 3. Qb2+ Kd1 4. Qb1+ $18) 3. Bb3 Qg2 {Now, White performs surgery for winning of tempo} 4. Qf5+ $1 (4. Bd5 $2 Qg3+ 5. Bf3 Kc2 $1 6. Qb2+ Kd3 $11) 4... Kc1 5. Qf4+ Kb1 6. Qf6 $1 {and now the problem is solved!} h5 (6... Qe2 7. Qg6+ Kc1 8. Qxh6+ Qd2 9. Qc6+ Kb1 10. Qe4+ $18) (6... h3 7. Bd5 $1 Qg3+ 8. Bf3 Kc2 9. Qb2+ Kd3 10. Qe2+ Kd4 11. Qe4+ Kc3 12. Qe3+ {same position as in main, a difference dislocations of black pawns.}) 7. Qf5+ Kc1 8. Qf4+ Kb1 9. Qf6 $1 {again, White forcing Black to move the bPh4} h3 10. Bd5 $1 (10. Qf5+ $2 Kc1 11. Qf4+ Kb1 12. Qf6 h4 $1 $11) 10... Qg3+ (10... Qe2 11. Be4+ Kc1 12. Qc3+ Kd1 13. Bf3 $18) 11. Bf3 $1 Kc2 12. Qb2+ Kd3 13. Qe2+ Kd4 14. Qe4+ Kc3 15. Qe3+ $18 {. Main final idea is vell known: HvdH-IV #2945- Bridgewater, 1885; #67422- Vandiest, 2000 and others. However, the author has demonstrated how can be revive the "story up to date".} 1-0
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[Event "Sp. HM"] [Site ""] [Date "2012"] [Round ""] [White "Afek=Y - E0232 "] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4K3/6k1/p5r1/6P1/1R6/8/3P4/8 w - - 0 1"] [PlyCount "21"] [EventDate "2013"] 1. Rb7+ (1. d4 $2 Rxg5 $11) (1. Rg4 $2 Rb6 2. d4 a5 3. Rg1 Rb5 4. Rd1 a4 5. d5 a3 6. d6 a2 7. d7 Re5+ 8. Kd8 Rd5 9. Ra1 Rd2 $11) 1... Kg8 2. d4 Rxg5 (2... Rd6 3. Rb4 $2 a5 4. Rc4 Rd5 5. Ke7 Rxg5 6. Ke6 $18) 3. Rd7 $1 (3. Rb1 $2 a5 4. Rd1 Rd5 $1 5. Ke7 a4 6. Ke6 Rh5 7. d5 Kf8 8. d6 Ke8 $11) 3... a5 4. d5 a4 5. d6 a3 6. Ra7 {switchback} Re5+ 7. Kd8 $1 Re3 8. d7 Kf7 9. Rc7 $1 a2 10. Kc8 a1=Q 11. d8=Q+ $18 {Excelsior. Beautiful rooks study with a practical value. Nice moves: 3.Rd7! and 9.Rc7!} 1-0
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[Event "Sp. HM"] [Site ""] [Date "2012"] [Round ""] [White "Becker=R - E0219 "] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/K1k5/8/7p/2B3Q1/3p4/2q5/8 w - - 0 1"] [PlyCount "55"] [EventDate "2012"] 1. Qg7+ $1 (1. Qf4+ $2 Kc6 2. Qe4+ Kc5 3. Qd5+ Kb4 $11) 1... Kc6 2. Qb7+ Kd6 ( 2... Kc5 3. Bb3 $1 $18) 3. Qd5+ Kc7 4. Qe5+ Kd8 5. Qd4+ $1 Ke7 (5... Kc7 6. Be6 $1 $18) (5... Ke8 6. Kb6 $1 Qe2 7. Qf6 $1 Qe3+ 8. Kc6 $18) 6. Kb6 $1 Qe2 7. Qg7+ Kd8 8. Qc7+ Ke8 9. Qf7+ Kd8 10. Qd5+ Ke7 11. Qd4 $1 h4 12. Qxh4+ Kd7 13. Qd4+ Ke7 14. Qg7+ Kd8 15. Qc7+ Ke8 16. Qf7+ Kd8 17. Qd5+ Ke7 18. Qd4 Qe1 (18... Qf3 19. Qe5+ Kf8 20. Kc7) 19. Qg7+ Kd8 20. Qc7+ Ke8 21. Qf7+ (21. Bb5+ Kf8 22. Qf4+ Ke7 23. Qg5+ Kf8 24. Qh6+ Kf7 25. Bc4+ Ke7 26. Qg5+ {loss of time}) 21... Kd8 22. Qd5+ Ke7 23. Qg5+ Kd7 24. Bb5+ Ke6 25. Qg6+ Kd5 26. Qc6+ Kd4 27. Qc5+ Ke4 28. Qe7+ $18 {. The final idea was implemented in 1922 (HvdH, #13832-Perelman). There were only 6 moves. In this study, there is a substantial development of the play. Apart from grate introduction play, here we see some of the modern tactical elements too!} 1-0
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[Event "Sp. com"] [Site ""] [Date "2012"] [Round ""] [White "Vrabec=F - E0214 "] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/8/2N1P3/Kp6/p7/8/1k1n4 w - - 0 1"] [PlyCount "45"] [EventDate "2012"] 1. Kb5 $3 (1. e6 $2 a2 {/Nc3-+}) (1. Kxb4 $2 a2 2. Nb3 Kb2 $19) (1. Nb3 $2 Kb2 2. Kxb4 a2 $19) 1... a2 $1 (1... Kb2 2. Nd3+ {(Kxb4)=}) (1... Kc2 2. Kc4 a2 3. Nb3 $11) (1... Nc3+ 2. Kxb4 $11) (1... b3 2. Nxb3 Kb2 3. Ka4 {(Kc4, e6)=}) 2. Nb3 Kc2 3. Kc4 $1 (3. Kxb4 $2 Kb2 $19) (3. Ka4 $2 Kc3 4. Na1 Nb2+ $19) 3... Kb2 4. Kxb4 {(e6)} Ne3 5. e6 Nf5 6. Kc4 $1 (6. Ka4 $2 Nd4 $1 $19) 6... Ne7 7. Kb4 Nc6+ 8. Kc4 Ne5+ 9. Kb4 Nd3+ 10. Kc4 Ne5+ 11. Kb4 Nc6+ 12. Kc4 Na5+ $1 13. Kd5 $3 (13. Kb4 $2 Nxb3 $19) 13... Nc6 $1 14. Kc4 $1 (14. Kxc6 $2 Kxb3 15. Kd7 a1=Q $19) 14... Ne7 15. Kb4 Nf5 16. Kc4 Ng7 17. e7 Nf5 18. e8=N $1 Ne3+ 19. Kb4 Nc2+ 20. Kc4 Nd4 21. Nxd4 a1=Q 22. Nd6 Qa2+ 23. Kc5 $11 {. development of the same authors study SG-2010} 1/2-1/2
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