www.arves.org - Polish Chess Fed 2022

Studies awarded for the Polish Chess Federation 2022 tournament.

[Event"1.p Polish Chess Fed 2022"] [Site ""] [Date ""] [Round ""] [White "Bogusz Piliczewski"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2b1K3/1kP5/2p3r1/3NR3/7N/B7/p7/b7 w - - 0 1"]   
 1. Re2 (1. Re1? Rg8+! 2. Bf8 (2. Kf7 Rg7+ 3. Ke8 Be5! 4. Ne7 Kxc7 5. Nxc8 Kxc8 6. Nf5 Ra7 {-+}) 2. .. Be5 3. Ne7 Rg4 4. Nxc8 Kxc8 5. Nf5 Kxc7 {-+}) 1. .. Re6+! (1. .. Rg8+ 2. Kf7 Rg7+ 3. Kf8 cxd5 4. Rxa2 Bf6 (4. .. Bc3 5. Bb2 Rxc7 6. Bxc3 Rxc3 {=}) 5. Rf2 Bd4 6. Rf7 Rxf7+ 7. Kxf7 Kxc7 {=}) (1. .. Bc3 2. Rxa2 Rg8+ 3. Kf7 Rg7+ 4. Kf8 cxd5 5. Bb2 {=}) 2. Rxe6 {And it turns out that Black's first move was not an invitation to exchange, but a sacrifice of the rook, because Black had no intention of capturing it, but planned to sacrifice the second piece, this time the bishop!} Bc3!! {If Black decides to sacrifice the bishop on the e5 square, then White sacrifices the rook and draws, even though the Black pawn promotes to a queen:} (2. .. Be5 3. Rxc6! a1=Q 4. Rb6+ Ka7 5. Ng6 Bxc7 6. Rc6 Bg3 (6. .. Bb7 7. Rxc7 Qxa3 {=}) 7. Rxc8 Qxa3 {=}) (2. .. Bxe6 3. Nb4 Kxc7 4. Nxa2 {=}) 3. Rxc6!! {White does not accept the bishop's sacrifice and responds by sacrificing a rook with the plan of the bishop's sacrifice on the next move.} (3. Nxc3? a1=Q 4. Ne4 (4. Re3 Qxa3 5. Ng6 Qd6 6. Kf7 Qc5 7. Rf3 Bg4 {-+}) 4. .. Bxe6 5. Nc5+ Kc8 6. Nxe6 Qf6 7. Nd8 Qxh4 {-+}) 3. .. Kxc6 {The sacrifice of the rook must be accepted.} (3. .. a1=Q 4. Rb6+ Ka7 5. Bc5 Qa4+ 6. Rb5+ Ka6 7. Nxc3 Qxh4 8. Rb6+ {=}) 4. Bb2! {Now White, after sacrificing a rook, offers a bishop, thus copying the effective play of Black.} (4. Nb4+? Bxb4 5. Bb2 Kxc7 {-+}) 4. .. Bxb2 (4. .. Bd7+ 5. Kf7 Bxb2 6. Nb4+ Kxc7 7. Nxa2 {=}) 5. Nb4+ Kxc7 6. Nxa2 {The first phase of the study is over - White has come out unscathed because Black had to take both sacrificed figures while White could take only one! The second phase begins. We have a position with two knights against two bishops. Black hopes to capture one knight, because both knights are in a bad position.} Bb7! (6. .. Ba6 7. Nb4 Bb5+ 8. Kf7 Bc4+ 9. Ke8! Bc3 10. Nc2 Bd3 11. Ne3 {=}) 7. Ng6! {The first thematic try imposes itself (in every chess book there is a recommendation to place the knight closer to the center of the chessboard!)} (7. Nf5? Bc6+ 8. Ke7 Bd5 9. Nb4 Ba3 10. Ke8 Bf3! {but not [a try within a try!]} (10. .. Bxb4? 11. Ne7 Be4 12. Nd5+ Bxd5 {Stalemate})  11. Ne3 {The knight on b4 cannot move because of the mate on h5:} (11. Nc2 Bh5#) 11. .. Bh5+ (11. .. Bxb4? 12. Nd5+ Bxd5 {Stalemate}) 12. Ke7 Bxb4+ {-+}) 7. .. Bc6+ 8. Ke7! {The second thematic try arises after:} (8. Kf8? Ba3+! (8. .. Bd5? {[again try within a try]} 9. Nb4 Ba3 10. Ke8! {the order of moves matters, White loses after:} (10. Ne7? Bf3! 11. Nc2 Bc5 12. Kf7 Be4 13. Na1 Kd7 14. Ng8 Bd5+ {-+}) 10. .. Bxb4 11. Ne7 Be4 12. Nd5+ Bxd5 {Stalemate}) 9. Kg7 Bd5 10. Nc3 Bb2 {-+}) 8. .. Bd5 (8. .. Ba3+ 9. Ke6 {=}) 9. Nb4 Ba3 10. Ke8 (10. Nf4? Bxb4+ 11. Ke8 Bc6+ {-+}) 10. .. Bxb4 {Black achieved the goal - won one knight.} 11. Ne7 {White attacks the bishop and at the same time defends the key square c6.} Be4 12. Nd5+! {The final sacrifice of the second knight. White is saved with stalemate.} Bxd5 {Stalemate. Black captured both knights, but it only gave a draw!}  1/2-1/2