[Event "de Rivière Arena"]
[Site "http://chess-academy.net/hdi0uO4b"]
[Date "2025.09.16"]
[Round "-"]
[White "MarkSt"]
[Black "Robert2015"]
[Result "1-0"]
[UTCDate "2025.09.16"]
[UTCTime "16:46:22"]
[WhiteElo "1355"]
[BlackElo "1463"]
[WhiteRatingDiff "+27"]
[BlackRatingDiff "-15"]
[Variant "Standard"]
[TimeControl "600+0"]
[ECO "A40"]
[Opening "Horwitz Defense"]
[Termination "Normal"]
[Annotator "chess-academy.net"]

1. d4 { [%eval 0.15] [%clk 0:10:00] } 1... e6 { [%eval 0.38] [%clk 0:10:00] } { A40 Horwitz Defense } 2. Nf3 { [%eval 0.21] [%clk 0:09:59] } 2... Nf6 { [%eval 0.43] [%clk 0:09:55] } 3. c3?! { (0.43 → -0.14) Inaccuracy. Best move was c4. } { [%eval -0.14] [%clk 0:09:56] } (3. c4 d5 4. Nc3 Bb4 5. e3 c5 6. Be2 O-O 7. O-O Nc6) 3... Bc5?? { (-0.14 → 4.36) Blunder. Best move was d5. } { [%eval 4.36] [%clk 0:09:44] } (3... d5 4. Bf4) 4. dxc5 { [%eval 4.17] [%clk 0:09:54] } 4... Nc6?! { (4.17 → 4.84) Inaccuracy. Best move was b6. } { [%eval 4.84] [%clk 0:09:29] } (4... b6 5. Bg5) 5. b4?! { (4.84 → 4.31) Inaccuracy. Best move was Nbd2. } { [%eval 4.31] [%clk 0:09:50] } (5. Nbd2 e5 6. e4 O-O 7. Qc2 d6 8. cxd6 cxd6 9. Be2 Qc7 10. b3 Nb4 11. Qb2 Nc6) 5... d6?! { (4.31 → 4.92) Inaccuracy. Best move was b6. } { [%eval 4.92] [%clk 0:09:29] } (5... b6 6. Nbd2 O-O 7. e4 d5 8. cxd6 cxd6 9. Bd3 e5 10. O-O Ne7 11. c4 Ng6 12. g3) 6. Ng5? { (4.92 → 3.56) Mistake. Best move was b5. } { [%eval 3.56] [%clk 0:09:43] } (6. b5 Na5 7. cxd6 cxd6 8. Ba3 Nc4 9. Bb4 a5 10. bxa6 b6 11. Nbd2 Nxd2 12. Qxd2 Bxa6) 6... h6? { (3.56 → 4.60) Mistake. Best move was O-O. } { [%eval 4.6] [%clk 0:08:50] } (6... O-O) 7. Ne4?? { (4.60 → -0.70) Blunder. Best move was Nf3. } { [%eval -0.7] [%clk 0:09:35] } (7. Nf3 e5 8. cxd6 cxd6 9. e3 a6 10. Be2 O-O 11. h3 Be6 12. O-O Qc7 13. Bb2 Rfe8) 7... Nxe4 { [%eval 0.04] [%clk 0:08:46] } 8. f3?? { (0.04 → -3.35) Blunder. Best move was Qc2. } { [%eval -3.35] [%clk 0:09:33] } (8. Qc2 f5 9. Nd2 d5 10. e3 O-O 11. Bb2 a6 12. Be2 e5 13. O-O Be6 14. a4 Nxd2) 8... Nf2?? { (-3.35 → 4.27) Blunder. Best move was Qh4+. } { [%eval 4.27] [%clk 0:08:37] } (8... Qh4+ 9. g3 Nxg3 10. hxg3 Qxh1 11. b5 Ne7 12. cxd6 cxd6 13. Qxd6 Nf5 14. Qc5 Nxg3 15. Nd2) 9. Kxf2 { [%eval 3.78] [%clk 0:09:29] } 9... Qf6? { (3.78 → 5.92) Mistake. Best move was O-O. } { [%eval 5.92] [%clk 0:08:11] } (9... O-O 10. h4 e5 11. e4 Be6 12. cxd6 cxd6 13. Na3 a5 14. b5 Ne7 15. Nc4 d5 16. exd5) 10. Na3? { (5.92 → 3.44) Mistake. Best move was cxd6. } { [%eval 3.44] [%clk 0:09:18] } (10. cxd6 Qh4+ 11. g3 Qd8 12. b5 Ne7 13. Ba3 Nf5 14. e4 Nxd6 15. Qd4 f6 16. Be2 O-O) 10... Qh4+? { (3.44 → 5.21) Mistake. Best move was dxc5. } { [%eval 5.21] [%clk 0:06:51] } (10... dxc5 11. bxc5) 11. g3 { [%eval 4.75] [%clk 0:09:14] } 11... Qg5?? { (4.75 → 16.97) Blunder. Best move was Qd8. } { [%eval 16.97] [%clk 0:06:46] } (11... Qd8 12. e4) 12. f4?? { (16.97 → 5.29) Blunder. Best move was Bxg5. } { [%eval 5.29] [%clk 0:09:09] } (12. Bxg5 hxg5 13. Nb5 O-O 14. Nxc7 Rb8 15. b5 Ne5 16. Qxd6 f6 17. Nxe6 Bxe6 18. Qxe6+ Nf7) 12... Qg4?? { (5.29 → 8.34) Blunder. Best move was Qd8. } { [%eval 8.34] [%clk 0:05:38] } (12... Qd8 13. e4 O-O 14. Be3 b6 15. cxd6 cxd6 16. Bg2 Ne7 17. c4 d5 18. Rc1 Qd7 19. cxd5) 13. h3?! { (8.34 → 7.81) Inaccuracy. Best move was cxd6. } { [%eval 7.81] [%clk 0:09:04] } (13. cxd6) 13... Nxb4? { (7.81 → 19.35) Mistake. Best move was Qf5. } { [%eval 19.35] [%clk 0:05:34] } (13... Qf5 14. Nb5) 14. hxg4 { [%eval 18.59] [%clk 0:08:59] } 14... Nd3+ { [%eval 24.2] [%clk 0:05:21] } 15. Qxd3 { [%eval 23.77] [%clk 0:08:55] } 15... dxc5 { [%eval 25.46] [%clk 0:04:43] } 16. c4 { [%eval 23.4] [%clk 0:08:46] } 16... b6 { [%eval 24.85] [%clk 0:04:21] } 17. g5 { [%eval 23.61] [%clk 0:08:38] } 17... Bb7 { [%eval 23.03] [%clk 0:04:17] } 18. Rxh6 { [%eval 21.96] [%clk 0:08:33] } 18... Rxh6 { [%eval 29.4] [%clk 0:04:14] } 19. gxh6 { [%eval 28.13] [%clk 0:08:31] } 19... Rd8 { [%eval 35.47] [%clk 0:04:10] } 20. Qc2 { [%eval 26.29] [%clk 0:08:26] } 20... e5 { [%eval 48.89] [%clk 0:03:50] } 21. fxe5 { [%eval 30.1] [%clk 0:08:22] } 21... f6?! { (30.10 → Mate in 6) Checkmate is now unavoidable. Best move was gxh6. } { [%eval #6] [%clk 0:03:44] } (21... gxh6 22. Qa4+) 22. hxg7 { [%eval #7] [%clk 0:08:16] } 22... Rd4 { [%eval #4] [%clk 0:03:34] } 23. g8=Q+ { [%eval #3] [%clk 0:08:12] } 23... Ke7 { [%eval #1] [%clk 0:03:29] } 24. Qf5?! { (Mate in 1 → Mate in 2) Not the best checkmate sequence. Best move was Qch7#. } { [%eval #2] [%clk 0:08:08] } (24. Qch7#) 24... Rd1 { [%eval #1] [%clk 0:03:20] } 25. Qfe6# { [%clk 0:08:06] } { White wins by checkmate. } 1-0


