www.arves.org - Probleemblad 2005-2006

Studies awarded for the Dutch Magazine tournament Probleemblad 2005-2006.

[Event "Prize, Problemblad 2005-2006"] [Site ""] [Date ""] [Round ""] [White "R.Becker & I.Akobia"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/b7/5Rp1/2n3n1/3p4/4P3/3N1K1k w - - 0 1"] [PlyCount "27"] 
 1. Nf2+ (1. exd3 $2 Nce3+ 2. Nxe3 Nxe3+ {-+}) (1. Rxg5 $2 dxe2+ 2. Ke1 (2. Kxe2 Nce5+ 3. Kd2 Nf3+ {-+}) 2... Nce5 3. Nf2+ Nxf2 4. Kxf2 (4. Rxe5 Nd3+ {-+}) 4... e1=Q+ 5. Kxe1 Nf3+ {-+}) 1... Nxf2 2. Rxg5 (2. Kxf2 $2 Nd6 3. Rxg5 Ne4+ {-+}) 2... Nd2+ (2... Nh3 3. Rg3 {=}) (2... Ng4 3. exd3 {=}) 3. Ke1 dxe2 (3... Nde4 4. Rh5+ Kg2 5. exd3 {=}) 4. Rg3 $1 Bb5 {Main B)} ({Main A)} 4... Nfe4 5. Re3 ( 5. Ra3 $2 Bc4 6. Re3 Kg1 {zz} 7. Rxe4 Nf3#) 5... Kg1 6. Ra3 Bb5 7. Rb3 Bc4 8. Re3 {zz} 8... Kh1 9. Rxe4 Nxe4 {stalemate}) 5. Re3 Kg2 (5... Nf1 6. Re7 {=}) 6. Kxd2 Kf1 7. Re7 {zz} (7. Re6 $2 Ng4 8. Re7 Nh2 {-+}) (7. Re5 $2 Bc4 {zz} 8. Re8 Nh3 9. Rf8+ Kg2 10. Rc8 (10. Re8 Ng1 {-+}) 10... Bd3 11. Rc1 Ba6 12. Rc6 Kf1 13. Rf6+ Nf2 14. Re6 Ng4 {-+}) 7... Ng4 {(Nh3)} 8. Rf7+ Nf2 9. Re7 Ba6 10. Re8 {zz} 10... Bc4 11. Re5 {zz} 11... Bd3 12. Re3 {zz} 12... Ng4 13. Rf3+ Nf2 ( 13... Kg2 14. Rf7 {(Rf8)} 14... Nh2 15. Re7 {=}) 14. Re3 {=} 1/2-1/2

[Event "Comm. Problemblad 2005-2006"] [Site ""] [Date ""] [Round ""] [White "S.Osinsev"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "4K3/1b6/1bkP4/n3R3/8/1n6/1P6/8 w - - 0 1"] [PlyCount "25"] 
 1. d7 Kd6 $1 2. Rb5 $1 Bc7 3. d8=Q+ Bxd8 4. Kxd8 Bd5 ({Main A)} 4... Nd4 5. Rxb7 $1 (5. Rxa5 $2 Nc6+ {-+}) (5. Rh5 $2 Ne6+ 6. Ke8 Ng7+ {-+}) (5. Rb6+ $2 Nac6+ $1 6. Ke8 Bc8 $1 7. b4 Kc7 {-+}) 5... Nxb7+ 6. Kc8 $1 Kc6 7. b3 $3 (7. b4 $2 Nb5 {zz} 8. Kb8 N7d6 9. Ka8 Kd7 10. Kb8 Kd8 11. Ka8 Ke7 12. Kb8 Kd7 13. Ka8 Kc6 14. Kb8 Kb6 15. Ka8 Nc7+ 16. Kb8 Na6+ 17. Ka8 Ne8 18. b5 Nec7#) 7... Nb5 8. b4 $1 {zz} 8... N5d6+ (8... N7d6+ 9. Kd8 $1 {=}) 9. Kb8 Kb6 10. b5 Nd8 11. Ka8 Nf5 12. Kb8 Ne7 13. Ka8 Ne6 14. Kb8 Nc7 {stalemate}) 5. Rb6+ $1 (5. Rb4 $2 Nc6+ {-+}) (5. Kc8 $2 Nc6 6. Rb6 Nba5 7. b4 Be6#) (5. Ke8 $2 Bc6+ {-+}) 5... Nc6+ 6. Ke8 Bc4 (6... Nc5 7. b4 $1 (7. Rb5 $2 Bc4 8. Rb6 Kc7 {-+}) 7... Nd7 8. Ra6 $1 ( 8. Rb5 $2 Be6 $1 9. Rb7 (9. Rg5 Nf6+ 10. Kf8 Nh7+ {-+}) 9... Bf5 10. Kf7 Nd8+ { -+}) (8. Rb7 $2 Nce5 $1 9. Rb5 (9. Ra7 Bf7+ 10. Kd8 Nc6+ {-+}) 9... Bf7+ 10. Kd8 Nc6+ 11. Kc8 Na7+ {-+}) 8... Bf3 9. Kf7 {=}) 7. Rb7 Nc5 8. Rh7 $1 (8. Rg7 $2 Ne5 $1 9. Rh7 (9. Rg1 Bf7+ 10. Kd8 Nc6+ 11. Kc8 Be6#) 9... Ne6 $1 10. Rb7 ( 10. Rh2 Bb5#) 10... Bd5 11. Rb6+ Kc5 12. Rb8 (12. Ra6 Nc7+ {-+}) 12... Ng7+ 13. Kf8 Nd7+ {-+}) 8... Ne5 9. b3 $3 (9. b4 $2 Ne6 $1 {-+}) 9... Bxb3 10. Ra7 (10. Kd8 $2 Bc4 $3 11. Rh5 (11. Rh6+ Ne6+ 12. Kc8 Ba6+ 13. Kb8 Nc6+ 14. Ka8 Kc7 15. Rxe6 Bb7#) (11. Kc8 Ba6+ 12. Kb8 Ncd7+ 13. Ka7 Bc8 14. Rh6+ Kc7 {-+}) 11... Ne6+ 12. Kc8 Ba6+ 13. Kb8 Nc6+ 14. Ka8 Nc7#) 10... Bd5 11. Kf8 $1 (11. Ra1 $2 Bf7+ 12. Kd8 Nc6+ 13. Kc8 Be6#) (11. Rh7 $2 Ne6 $1 {-+}) 11... Ne6+ 12. Kg8 Nc6 13. Ra1 {(Ra3) =} 1/2-1/2