[Event "Chessbase-25"] [Site "?"] [Date "2011.??.??"] [Round "?"] [White "Rusz, Árpád"] [Black "(Study 91)"] [Result "1-0"] [Annotator "9th Honourable Mention"] [SetUp "1"] [FEN "8/8/2p3q1/QP6/2P2p2/1K1P3k/8/8 w - - 0 1"] [PlyCount "23"] [EventDate "2011.??.??"] 1. b6 $1 (1. bxc6 $2 Qxc6 2. Qf5+ Kg3 3. Qg5+ Kf3 4. Qd5+ Qxd5 5. cxd5 Ke2 $1 ( 5... Ke3 $2 6. d6 f3 7. d7 f2 8. d8=Q f1=Q 9. Qb6+ $1 Ke2 10. Qe6+ Kd2 11. Qh6+ Ke2 12. Qh5+ Kd2 13. Qa5+ Ke2 14. Qe5+ Kd2 15. Qc3+ Ke3 16. Qc5+ $1 Kd2 17. d4 $18) (5... Kg4 $2 6. d6 f3 7. d7 f2 8. d8=Q f1=Q 9. Qd7+ $1 Kg5 10. Qd6 $1 $18) 6. d6 f3 7. d7 f2 8. d8=Q f1=Q 9. Qe8+ Kd2 $11) 1... f3 $1 (1... Qxd3+ 2. Qc3 $18) 2. b7 Qxd3+ (2... f2 3. b8=Q Qxd3+ 4. Qc3 (4. Kb2 $2 Qe2+ 5. Ka3 Qd3+ 6. Qb3 f1=Q 7. Qh5+ Kg2 $11) 4... f1=Q 5. Qc8+ $1 (5. Qbh8+ $2 Kg2 $1 6. Qhg7+ Kh1 $1 7. Qh6+ Kg1 8. Qg5+ Kh1 9. Qh4+ Kg2 $1 (9... Kg1 $2 10. Qg3+ Qxg3 11. Qxg3+ Kh1 12. Qh4+ $18) 10. Qg4+ Kh2 $1 (10... Kh1 $2 11. Qxd3 Qxd3+ 12. Ka4 Qc2+ 13. Ka5 Qa2+ 14. Kb6 $18) 11. Qh4+ Kg2 {positional draw}) 5... Kh4 (5... Kh2 $2 6. Qc7+ Kh1 7. Qxc6+ $18) 6. Q8h8+ Kg5 7. Qhg7+ (7. Qhe5+ $2 Qff5 8. Qxd3 Qxe5 $11 ) 7... Kh5 8. Qge5+ $18) 3. Qc3 Qb1+ $1 4. Qb2 Qxb2+ $1 (4... Qd3+ 5. Kb4 Qd6+ 6. Ka5 Qc5+ 7. Ka6 Qxc4+ 8. Kb6 $1 {Roman} (8. Ka7 $2 Qc5+ 9. Ka8 Qa5+ $11) 8... Qg8 9. Ka7 Qg1+ 10. Ka8 $18) 5. Kxb2 f2 6. b8=Q f1=Q 7. Qc8+ (7. Qh8+ $2 Kg4 8. Qg7+ Kh5 9. Qh7+ Kg5 10. Qg7+ Kh5 {positional draw}) 7... Kh4 $1 8. Qxc6 $1 Qd3 $1 {Now we see the reason why it was better for Black to exchange the Queens on b2 instead of c3.} 9. Qb5 $1 {mutual zugzwang} (9. Qd5 $2 Qxd5 10. cxd5 Kg5 $11) (9. c5 $2 Kg5 10. Qd6 Qxd6 11. cxd6 Kf6 $11) 9... Kg4 10. Qc5 $1 {mutual zugzwang} (10. Qb3 $2 Qd2+ 11. Ka3 Qa5+ 12. Qa4 Qc3+ 13. Qb3 Qa5+ { perpetual check}) 10... Kf4 11. Qe7 $3 Qxc4 (11... Kf5 12. Qh7+ $18) 12. Qh4+ 1-0