www.arves.org - Change Theme Ty 2011

Studies of the Change theme tournament 2011.

[Event "4.p Changes in Studyes"] [Site ""] [Date "2011.11.19"] [Round ""] [White "Akobia=I"] [Black ""] [Result "*"] [SetUp "1"] [FEN "8/8/8/1n6/1p5P/1B6/6PK/k4b2 w - - 0 0"] [PlyCount "23"] [SourceDate "2005.01.24"] 
 1. h5 Bd3 $1 (1... Nd4 2. h6 $1 Bd3 3. Bg8 $11 b3 4. h7 Bxh7 5. Bxh7 $11) (1... Nd6 2. h6 $1 (2. g4 Bc4 3. Ba4 Bd3 4. Bb3 Kb2 5. Bg8 Ne4 6. h6 Nf6 $19) 2... Bd3 3. Bg8 $11) 2. Bg8 $1 (2. h6 $2 Bh7 $1 $19) (2. Kg3 $2 Nd4 $1 3. Bg8 b3 $19 ) 2... Kb2 3. h6 $1 ({Thematic try} 3. g4 $5 Kc3 $1 4. h6 b3 5. h7 Bxh7 6. Bxh7 Na3 $1 {zz and play leads to the thematic try 6.g4!? below}) 3... b3 4. h7 Bxh7 5. Bxh7 {main B} Kc3 ({main A} 5... Kc1 6. g4 $1 ({thematic try} 6. g3 $5 b2 { (Nd4)} (6... Na3 $2 7. g4 b2 8. g5 Nc2 9. g6 {main A}) 7. g4 Nd4 {(b2)} 8. Kg2 Nc2 $1 $19) 6... b2 7. g5 {(Kg3)} Nd4 8. Kg3 ({or} 8. Kh3 Nc2 9. g6 { and same result}) 8... Nc2 9. g6 b1=Q 10. g7 Qb8+ 11. Kh3 $1 Qc8+ 12. Kh4 $1 Qd8+ 13. Kh5 $1 Qd5+ 14. Kh6 {(g6)=}) 6. g3 $3 {zz} ({Thematic try} 6. g4 $5 Na3 $1 {zz} 7. g5 (7. Bg8 Nc4 8. g5 b2 9. Bh7 Na3 10. Bb1 Nxb1 11. g6 Nd2 12. g7) 7... b2 8. Bb1 Nxb1 9. g6 Nd2 10. g7 b1=Q {(Nf3)} 11. g8=Q Nf3+ {(b1Q)-+}) 6... Na3 7. g4 {zz} b2 8. g5 Kd2 ({or} 8... Nc2 9. g6 b1=Q 10. g7 Qb8+ 11. Kh3 $1 Qc8+ {and draws as in the line A}) 9. Bb1 $3 Nxb1 10. g6 Nc3 { (impossible 10...Nd2 as in the thematic try 6.g4!?)} 11. g7 b1=Q 12. g8=Q $11 { (no Nf3+ )} *

[Event "1.hm Changes in Studies"] [Site ""] [Date "2011.10.12"] [Round ""] [White "Akobia=I"] [Black ""] [Result "*"] [SetUp "1"] [FEN "k7/8/1R6/2p1p3/8/1p3K2/b7/3nN3 w - - 0 1"] [PlyCount "31"] [SourceDate "2005.01.24"] 
 1. Nd3 Ka7 $1 (1... c4 2. Nxe5 b2 3. Ke2 Nc3+ 4. Kd2 b1=Q 5. Rxb1 Nxb1+ 6. Kc2 {(c1)=}) 2. Rd6 e4+ $1 3. Kxe4 b2 4. Nxb2 Nxb2 5. Rd2 Bb1+ 6. Kd5 Na4 7. Kc4 Ka6 {main "B"} ({main "A"} 7... Kb6 8. Rf2 $1 ({Thematic try} 8. Rh2 $5 Ka6 $1 {zz} 9. Re2 Ka5 $1 {zz} 10. Rg2 Bf5 $1 11. Rg5 Be6+ $19) 8... Ka6 9. Rh2 Bf5 10. Rh6+ Ka5 11. Rc6 Bd7 12. Rxc5+ $11) 8. Rh2 $1 {zz} ({Thematic try} 8. Re2 $5 Ka5 $1 {zz} 9. Rg2 Bf5 $1 (9... Be4 $2 10. Ra2 {and impossible Be6+}) 10. Ra2 (10. Rg5 Be6+ $19) 10... Be6+ $19) ({Thematic try} 8. Rf2 $5 Bh7 $1 9. Rf6+ Ka5 10. Rf7 (10. Rc6 Bg8+ 11. Kd3 Kb4 $19) 10... Bg8 $19) 8... Kb6 {main "D"} ( {main "C"} 8... Ka5 9. Re2 $1 {zz} Bg6 (9... Bh7 10. Re8 $11 { prevents Bg8+ and threate Ra8+}) 10. Re7 Bh5 11. Ra7+ $11) 9. Rf2 $1 {zz} Bh7 ( {or} 9... Bg6 10. Rf6+ $11) 10. Rf8 {(prevents the move Bg8+)} (10. Rf6+ $5 Ka5 11. Rf8 Nb6+ 12. Kxc5 Nd7+ $19) 10... Be4 11. Rf4 Bc6 12. Rf6 Nb2+ 13. Kc3 $1 ( {Thematic try} 13. Kb3 $5 Nd3 14. Kc3 Ne5 15. Re6 Nf7 $1 ({not} 15... Nd7 $2 16. Kc4 {zz=}) 16. Kc4 Nd8 17. Rf6 Nb7 $19) 13... Nd1+ 14. Kd2 $1 ({ Thematic try} 14. Kd3 $5 Kb5 $1 (14... Nb2+ $2 15. Kc3 {and main line}) 15. Rf1 (15. Kc2 Ne3+ 16. Kd3 Nd5 $19) (15. Kd2 Nb2 16. Kc3 Na4+ $19) 15... Nb2+ 16. Kc3 Na4+ $19) (14. Kc2 $2 Ne3+ 15. Kd3 Nd5 $19) 14... Nb2 15. Kc3 Na4+ 16. Kc4 {positional draw} *

[Event "2.hm Changes in Studies"] [Site ""] [Date "2011"] [Round ""] [White "I.Akobia=I, Didukh=S"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/1N6/1rB3k1/4K3/1P2p1P1/8/8/8 w - - 0 1"] [PlyCount "23"] [EventDate "2011"] [SourceDate "2005.01.24"] 
 1. b5 e3 2. Nc5 e2 3. Nd3 Kg5 4. Ke4 $1 ({Thematic try} 4. Kd4 $2 {(Reti)} Kxg4 {zz} 5. Kc5 Rb8 6. b6 Rd8 7. Bd5 Rc8+ 8. Kd6 (8. Kb4 Rd8 9. b7 Rxd5 10. b8=Q Rxd3 $11) 8... Rd8+ $1 9. Kc6 Rc8+ 10. Kd7 Rc3 11. Ne1 Rc1 $1 (11... Rc5 $2 12. Bf3+) 12. b7 Rxe1 13. b8=Q Rd1 14. Qg8+ (14. Qb4+ Kh5 $1) 14... Kf4 15. Qf7+ Ke3 16. Qf3+ Kd2 $11) 4... Kxg4 5. Kd4 $1 {zz} {main} Kg5 ({main} 5... Kf5 6. Kc5 Rb8 7. b6 Rd8 8. Bd5 Rc8+ 9. Kd6 $1 (9. Kb4 $2 Rd8 10. b7 Rxd5 11. b8=Q Rxd3 $11) (9. Kd4 $2 Rc1 10. b7 Rd1 11. Ke3 e1=Q+ 12. Nxe1 Rxe1+ 13. Kd4 Re8 $1 $11) 9... Rd8+ $1 10. Kc6 Rc8+ 11. Kd7 Rc3 12. Ne1 Rc1 13. b7 Rxe1 14. b8=Q Rd1 15. Qf8+ Ke5 16. Qe7+) (5... Rb8 6. Ke3 Kf5 7. Kxe2 Ke6 8. Ke3 Kd6 9. Kd4 $18) 6. Kc5 (6. Ne1 $2 Kf5 7. Nc2 Rb8 8. Kd3 Ke5) 6... Rb8 7. b6 Rd8 8. Bd5 Rc8+ 9. Kb4 $1 {Change of the thematic try} ({Thematic try} 9. Kd6 $2 Rd8+ 10. Kc6 Rc8+ 11. Kd7 Rc3 12. Ne1 Rc5 $1 13. Bf3 Rc1 $11) 9... Rd8 10. b7 Rxd5 11. b8=Q Rxd3 12. Qe5+ {win.} 1-0