nr 43
with a speculative, sharp gambit, partly named after Russian chess master (and write) Georgy Lisitsin
https://en.wikipedia.org/wiki/Georgy_Lisitsin; a relatively short game, for a change again.
[pgn]
[Event "Computer Chess Game"]
[Date "2025.09.16"]
[Round "17"]
[White "Patricia 5.0"]
[Black "KnightX 4.5"]
[Result "1-0"]
[Annotator "EAS-Tool: 3 PawnUnits Sacrifice found"]
[ECO "A04"]
[PlyCount "48"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]
1. Nf3 f5 2. e4 {Lisitsin gambit} fxe4 3. Ng5 {Lisitsin-Zilbermints gambit} e5 4. d3 e3 5. Bxe3 Nc6 6. g3 ({Relevant:} 6. Nf3 Nf6 7. d4 e4 8. Ne5 d6 9. Nxc6 bxc6 10. c4 d5 11. Nc3 Rb8 12. Qd2 Bd6 13. c5 {1-0 Lenderman,A (2634)-Williams,S (2464) Titled Tuesday intern op 6th June Chess.com INT blitz 2020 (7)}) 6... Nf6 7. Bg2 d5 {Inhibits Ng5-e4.} 8. c4 {[#] Black is slightly better.} dxc4 9. Qa4 (9. dxc4 Qxd1+ 10. Kxd1 Ng4 $17) 9... cxd3 {[#]} (9... h6 $15 10. Nf3 Ng4 (10... Qxd3 11. Nxe5 Qd6 12. Bxc6+ bxc6 13. O-O $16)) 10. Qc4 $146 ({Predecessor:} 10. Bxc6+ bxc6 11. Qxc6+ Bd7 12. Qc4 Qe7 {Prevents Qc4-f7+.} 13. Nc3 h6 14. Nge4 Rb8 15. Qxd3 Nxe4 $1 16. Qxe4 {Nc3-d5 is the strong threat.} Qe6 $1 17. O-O Bc6 18. Qc2 Bf3 {And now ...Bf8-e7 would win.} 19. Ne4 {0-1 Labbe,R-Caron,P FRA CDE-Jub50 sfA corr France 1999} (19. Bxa7 $15 Rd8 20. Nb5)) 10... Qd7 11. O-O {White has compensation.} Ng4 12. Nc3 $36 {White has the initiative. White is much more active. The black rooks are passive.} {Black can hardly hold the game after this.} Nb4 $2 {decisive mistake} (12... h6 $14 13. Nge4 {2} Na5 {1} 14. Qb5 {1} Qxb5 {1} 15. Nxb5 {1} Nxe3 {1} 16. fxe3 {1} Rb8 $14 {1}) 13. Nd5 $18 Na6 14. Rad1 (14. Qxd3 c6 $16) 14... c6 15. Rxd3 cxd5 16. Bxd5 ({Weaker is} 16. Rxd5 Qc7 17. Qb3 Nb4 $16) 16... Qc7 17. Bf7+ Ke7 18. Qd5 Nf6 {Dodges Bf7-h5} 19. Qb3 Bd7 20. Be6 {Threatening mate with Be6xd7.} b5 21. Rfd1 h6 22. Rxd7+ Nxd7 {[#]} 23. Bf5 $1 {A strong pair of Bishops.} Qc4 24. Rxd7+ {Weighted Error Value: White=0.05 (flawless) /Black=0.62} Ke8 1-0
[/pgn]
Beauty contest
Moderator: Ras
-
jefk
- Posts: 1045
- Joined: Sun Jul 25, 2010 10:07 pm
- Location: the Netherlands
- Full name: Jef Kaan
-
jefk
- Posts: 1045
- Joined: Sun Jul 25, 2010 10:07 pm
- Location: the Netherlands
- Full name: Jef Kaan
Re: Beauty contest
nr 44
As these P5 wins are often caused by mistakes by the opponent, let's take
a strong opponent, Slowchess, thus a longer game, where SC is slowly squashed.
Move 40 is a nice exchange sacrifice by WHite
[pgn]
[Event "Computer Chess Game"]
[Date "2025.10.03"]
[Round "29"]
[White "Patricia 5.0"]
[Black "SlowChess Blitz 2.9 sse"]
[Result "1-0"]
[Annotator "EAS-Tool: 4 PawnUnits Sacrifice "]
[ECO "C00"]
[PlyCount "114"]
[TimeControl "240+2"]
1. e4 c5 2. f4 {Sicilian, Grand prix} e6 (2... d6 3. Nf3 e6 4. Bb5+ Bd7 5. Be2 Nc6 6. O-O g6 7. Nc3 Bg7 8. Nb5 Qb8 9. f5 Nf6 10. fxe6 {½-½ Bednar,E (1970)-Roussel,P (1820) Loire Cup 2000 Phase Ligue 2003 (2)}) 3. d4 d5 4. e5 Nc6 5. Nf3 {French, Steinitz defense} Nh6 ({Relevant:} 5... f6 {5...Lc8-d7 -0.16} 6. a3 (6. c3 $14) 6... Nh6 7. Bd3 cxd4 8. h3 (8. b4 $11 {keeps the balance.}) 8... fxe5 9. fxe5 Nf5 10. Bxf5 $1 exf5 11. O-O Bc5 12. b4 Bb6 13. b5 Ne7 {0-1 Lahaye,R (2411)-Lopez,J (2388) Amsterdam Batavia Grolsch blitz 11th 2019 (9.3)}) (5... cxd4 {0} 6. a3 Nh6 7. Bd3 Bd7 8. O-O $11) 6. Bd3 Qb6 {[#]} 7. O-O $146 {surprisingly a novelty, d4 now can be taken,} ({Predecessor:} 7. c3 cxd4 8. cxd4 Bd7 9. Bc2 Nb4 10. Nc3 Rc8 (10... Nxc2+ $15 11. Qxc2 Bb4) 11. Bb1 $14 Be7 12. O-O O-O 13. Kh1 g6 ({Black should play} 13... f6) 14. h3 {1-0 Kudryavtsev,Y (1990)-Laffont,J (1557) LSS No Engine Cup 70 Final LSS email 2013} (14. a3 $142)) 7... Nb4 (7... cxd4 8. Kh1 {6} Nf5 {5} 9. Re1 {2} Be7 {3} 10. Nbd2 {2} O-O {3} 11. Nb3 {2} a5 {3} 12. Bxf5 {2} exf5 {1} 13. a4 {2} f6 {2} 14. Nbxd4 {13} fxe5 {1} 15. Nxc6 {2} bxc6 {1} 16. Be3 $11 {1}) 8. Be2 {The position is equal.} cxd4 9. Kh1 $1 Nc6 10. Bd3 {White has compensation.} Bd7 11. a3 a5 12. Nbd2 Rc8 13. Re1 Be7 14. Qe2 O-O 15. Rb1 Kh8 16. Nf1 Qc7 17. Ng3 (17. Ng5 g6 18. Qf2 Kg7 19. Qh4) 17... g6 18. Bd2 a4 19. h3 (19. Ng5 {keeps more tension.} Qd8 20. h3 Nxe5 21. Qxe5+ f6 22. Qxd4 Bc5 23. Nxe6 Bxd4 24. Nxd8 Rfxd8 25. Be3) 19... Kg8 20. b4 axb3 21. cxb3 Ra8 22. a4 f6 23. Rbc1 Qb8 24. Bb5 Nf7 25. Nf1 fxe5 26. fxe5 Ba3 27. Bxc6 bxc6 {[#]} 28. N1h2 $1 Be7 (28... Qxb3 29. Ng4 Be7 (29... Rxa4 $2 30. Nf6+ Kh8 31. Nxd7 $18) 30. a5 $11) (28... Bxc1 29. Bxc1 Qxb3 30. Qf2 $19) 29. a5 c5 30. Ng4 Qd8 (30... Qxb3 31. Nf6+ Bxf6 32. exf6 $15) 31. Qd3 Rb8 {[#]} 32. b4 $1 {White stays focused until the end.} cxb4 (32... Bb5 33. Qb1) 33. Ra1 {White has more active pieces.} Bb5 34. Qxd4 Ba6 35. Rab1 b3 36. Re3 Bc4 37. Bc3 Rb7 38. Rbe1 Kg7 39. Nf6 h6 (39... Qc8 $142) 40. Qg4 $1 $18 Bc5 (40... b2 41. Rb1 Ng5 (41... Bc5 42. Ree1 $14) 42. Nxg5 (42. Rxb2 Rxb2 43. Bxb2 Ne4 $14) (42. Bxb2 Ba2 $17) 42... hxg5 43. g3 $17 (43. Bxb2 $2 Ba2 $19) (43. Rxb2 Rxb2 44. Bxb2 Qb8 $16)) 41. Bd4 Bb4 (41... Qxa5 $16 42. Nh5+ Kh7 43. Nf6+ Kg7) 42. Rd1 (42. a6 Bxa6 43. Rd1 Qc8 $11) 42... Qc8 43. Bb2 (43. a6 Bxa6 44. Rxb3 Be7 45. Rxb7 Bxb7 $14) 43... Bc5 44. Nd4 $1 {A dynamic duo of knights.} Re7 (44... Bxd4 45. Rxd4 (45. Qxd4 Rb5 $16) 45... Ra7 {Remove Defender}) 45. Rc1 Qa6 (45... g5 46. h4 Bxd4 47. Bxd4 (47. Qxd4 Rc7 $16) 47... Qb8) 46. Rg3 g5 (46... Nxe5 47. Qh5 (47. Qf4 Bd6 $11) 47... Kxf6 48. Rf3+ Nxf3 49. Qxf3+ Kg7 50. Nxe6+ Kh7 51. Qxf8 $18 (51. Nxf8+ $2 Kg8 $19)) 47. h4 ({Less strong is} 47. Nxb3 Bf2 $16) 47... Bxd4 48. Qxd4 {Threatens to win with Bb2-a3.} (48. Bxd4 Qxa5 49. Nh5+ Kh7 $11) 48... Rb7 49. Kh2 Qxa5 $2 (49... Be2 {keeps fighting.} 50. Rc5 Rd8) 50. Rxc4 $1 {Deflection. White is clearly winning. Exchange sacrifice} dxc4 {[#]} 51. Qe4 {Prevents Qa5-e1} Rfb8 52. Qh7+ Kf8 53. Rf3 {White threatens Qh7-g8+ and mate.} Rd8 54. Bc3 Qc5 {[#]} 55. Bb4 $1 {a nice tactic winning the queen later with a fork} Qxb4 {[#]} 56. Qg8+ $1 Ke7 {[#]} 57. Nd5+ $1 {Deflection, Double Attack} {Weighted Error Value: White=0.04 (flawless) /Black=0.43} Kd7 1-0
[/pgn]
As these P5 wins are often caused by mistakes by the opponent, let's take
a strong opponent, Slowchess, thus a longer game, where SC is slowly squashed.
Move 40 is a nice exchange sacrifice by WHite
[pgn]
[Event "Computer Chess Game"]
[Date "2025.10.03"]
[Round "29"]
[White "Patricia 5.0"]
[Black "SlowChess Blitz 2.9 sse"]
[Result "1-0"]
[Annotator "EAS-Tool: 4 PawnUnits Sacrifice "]
[ECO "C00"]
[PlyCount "114"]
[TimeControl "240+2"]
1. e4 c5 2. f4 {Sicilian, Grand prix} e6 (2... d6 3. Nf3 e6 4. Bb5+ Bd7 5. Be2 Nc6 6. O-O g6 7. Nc3 Bg7 8. Nb5 Qb8 9. f5 Nf6 10. fxe6 {½-½ Bednar,E (1970)-Roussel,P (1820) Loire Cup 2000 Phase Ligue 2003 (2)}) 3. d4 d5 4. e5 Nc6 5. Nf3 {French, Steinitz defense} Nh6 ({Relevant:} 5... f6 {5...Lc8-d7 -0.16} 6. a3 (6. c3 $14) 6... Nh6 7. Bd3 cxd4 8. h3 (8. b4 $11 {keeps the balance.}) 8... fxe5 9. fxe5 Nf5 10. Bxf5 $1 exf5 11. O-O Bc5 12. b4 Bb6 13. b5 Ne7 {0-1 Lahaye,R (2411)-Lopez,J (2388) Amsterdam Batavia Grolsch blitz 11th 2019 (9.3)}) (5... cxd4 {0} 6. a3 Nh6 7. Bd3 Bd7 8. O-O $11) 6. Bd3 Qb6 {[#]} 7. O-O $146 {surprisingly a novelty, d4 now can be taken,} ({Predecessor:} 7. c3 cxd4 8. cxd4 Bd7 9. Bc2 Nb4 10. Nc3 Rc8 (10... Nxc2+ $15 11. Qxc2 Bb4) 11. Bb1 $14 Be7 12. O-O O-O 13. Kh1 g6 ({Black should play} 13... f6) 14. h3 {1-0 Kudryavtsev,Y (1990)-Laffont,J (1557) LSS No Engine Cup 70 Final LSS email 2013} (14. a3 $142)) 7... Nb4 (7... cxd4 8. Kh1 {6} Nf5 {5} 9. Re1 {2} Be7 {3} 10. Nbd2 {2} O-O {3} 11. Nb3 {2} a5 {3} 12. Bxf5 {2} exf5 {1} 13. a4 {2} f6 {2} 14. Nbxd4 {13} fxe5 {1} 15. Nxc6 {2} bxc6 {1} 16. Be3 $11 {1}) 8. Be2 {The position is equal.} cxd4 9. Kh1 $1 Nc6 10. Bd3 {White has compensation.} Bd7 11. a3 a5 12. Nbd2 Rc8 13. Re1 Be7 14. Qe2 O-O 15. Rb1 Kh8 16. Nf1 Qc7 17. Ng3 (17. Ng5 g6 18. Qf2 Kg7 19. Qh4) 17... g6 18. Bd2 a4 19. h3 (19. Ng5 {keeps more tension.} Qd8 20. h3 Nxe5 21. Qxe5+ f6 22. Qxd4 Bc5 23. Nxe6 Bxd4 24. Nxd8 Rfxd8 25. Be3) 19... Kg8 20. b4 axb3 21. cxb3 Ra8 22. a4 f6 23. Rbc1 Qb8 24. Bb5 Nf7 25. Nf1 fxe5 26. fxe5 Ba3 27. Bxc6 bxc6 {[#]} 28. N1h2 $1 Be7 (28... Qxb3 29. Ng4 Be7 (29... Rxa4 $2 30. Nf6+ Kh8 31. Nxd7 $18) 30. a5 $11) (28... Bxc1 29. Bxc1 Qxb3 30. Qf2 $19) 29. a5 c5 30. Ng4 Qd8 (30... Qxb3 31. Nf6+ Bxf6 32. exf6 $15) 31. Qd3 Rb8 {[#]} 32. b4 $1 {White stays focused until the end.} cxb4 (32... Bb5 33. Qb1) 33. Ra1 {White has more active pieces.} Bb5 34. Qxd4 Ba6 35. Rab1 b3 36. Re3 Bc4 37. Bc3 Rb7 38. Rbe1 Kg7 39. Nf6 h6 (39... Qc8 $142) 40. Qg4 $1 $18 Bc5 (40... b2 41. Rb1 Ng5 (41... Bc5 42. Ree1 $14) 42. Nxg5 (42. Rxb2 Rxb2 43. Bxb2 Ne4 $14) (42. Bxb2 Ba2 $17) 42... hxg5 43. g3 $17 (43. Bxb2 $2 Ba2 $19) (43. Rxb2 Rxb2 44. Bxb2 Qb8 $16)) 41. Bd4 Bb4 (41... Qxa5 $16 42. Nh5+ Kh7 43. Nf6+ Kg7) 42. Rd1 (42. a6 Bxa6 43. Rd1 Qc8 $11) 42... Qc8 43. Bb2 (43. a6 Bxa6 44. Rxb3 Be7 45. Rxb7 Bxb7 $14) 43... Bc5 44. Nd4 $1 {A dynamic duo of knights.} Re7 (44... Bxd4 45. Rxd4 (45. Qxd4 Rb5 $16) 45... Ra7 {Remove Defender}) 45. Rc1 Qa6 (45... g5 46. h4 Bxd4 47. Bxd4 (47. Qxd4 Rc7 $16) 47... Qb8) 46. Rg3 g5 (46... Nxe5 47. Qh5 (47. Qf4 Bd6 $11) 47... Kxf6 48. Rf3+ Nxf3 49. Qxf3+ Kg7 50. Nxe6+ Kh7 51. Qxf8 $18 (51. Nxf8+ $2 Kg8 $19)) 47. h4 ({Less strong is} 47. Nxb3 Bf2 $16) 47... Bxd4 48. Qxd4 {Threatens to win with Bb2-a3.} (48. Bxd4 Qxa5 49. Nh5+ Kh7 $11) 48... Rb7 49. Kh2 Qxa5 $2 (49... Be2 {keeps fighting.} 50. Rc5 Rd8) 50. Rxc4 $1 {Deflection. White is clearly winning. Exchange sacrifice} dxc4 {[#]} 51. Qe4 {Prevents Qa5-e1} Rfb8 52. Qh7+ Kf8 53. Rf3 {White threatens Qh7-g8+ and mate.} Rd8 54. Bc3 Qc5 {[#]} 55. Bb4 $1 {a nice tactic winning the queen later with a fork} Qxb4 {[#]} 56. Qg8+ $1 Ke7 {[#]} 57. Nd5+ $1 {Deflection, Double Attack} {Weighted Error Value: White=0.04 (flawless) /Black=0.43} Kd7 1-0
[/pgn]
-
jefk
- Posts: 1045
- Joined: Sun Jul 25, 2010 10:07 pm
- Location: the Netherlands
- Full name: Jef Kaan
Re: Beauty contest
nr 45
A Novelty again already at move 3(!) and a completely New -playable- gambit as well.
The eleventh move for White was a blunder which imo an engine of this strength should not make (not
even at 4/2 time control) but a human up till master level could easily make such a mistake, in blitz
at least (you can check for the following Bxf7+ move but it's not easy to see this is winning for White).
[pgn]
[Date "2025.10.06"]
[White "Patricia 5"]
[Black "KnightX45"]
[Result "1-0"]
[Annotator "EAS-Tool: 2 PawnUnits Sacrifice found in this"]
[ECO "A00"]
[PlyCount "52"]
{A00: Irregular Openings} 1. a3 {Anderssen} e5 2. d4 exd4 {Reversed Scandinavian} 3. c3 $1 $146 {Djengis gambit nr 90} ({Relevant:} 3. Qxd4 Nc6 4. Qa4 Nf6 5. Nc3 d5 6. Bg5 Be6 7. O-O-O Be7 8. e4 Nxe4 9. Bxe7 Qxe7 10. Nxe4 dxe4 11. Qxe4 O-O 12. Nf3 Rad8 13. Bd3 g6 14. Rhe1 {1-0 Nagy,G (2445)-Palczert,M (2349) Titled Tuesday intern op 28th Nov Early Chess.com INT blitz 2023 (10)}) 3... dxc3 4. Nxc3 Be7 5. e4 d6 6. Nf3 Nf6 7. Be2 O-O 8. Qc2 {The position is equal.} Bd7 9. O-O Re8 10. h3 a6 11. Bc4 {Hoping for e4-e5.} b5 $2 {[#] decisive mistake} (11... Nc6 $11 {and Black stays safe.}) 12. Bxf7+ $1 $18 {Decoy} Kxf7 (12... Kh8 13. Bxe8) 13. Qb3+ (13. Ng5+ {or} Kf8 {1} 14. Qb3 {1} d5 {2} 15. Nxd5 {1} Nxd5 {1} 16. Qxd5 {1} Bxg5 {3} 17. Bxg5 {1} Qc8 {2} 18. Qxa8 {1}) 13... d5 14. Nxd5 Kf8 15. Ng5 {Inhibits Bd7-e6. Threatening mate with Nd5xf6.} Nxd5 16. Qxd5 Bxg5 17. Bxg5 (17. Qxa8 $2 {loses.} Bf6 18. Qa7 Rxe4 19. Qc5+ Kg8 20. Qd5+ Re6 $17) 17... c6 18. Qd6+ Re7 19. f4 ({Stronger than} 19. Qxe7+ Qxe7 20. Bxe7+ Kxe7 $17) 19... Kf7 20. f5 (20. Bxe7 Qxe7 21. Qxe7+ Kxe7 $11) 20... Qb6+ 21. Kh1 Re8 22. e5 Kg8 23. e6 h5 24. e7 Bxf5 25. Rxf5 {Black is weak on the dark squares} Nd7 26. Qxd7 {White took control after the opening. Weighted Error Value: White=0.00 (flawless) /Black=0.64} c5 {1-0 Patricia 5.0-KnightX 4.5 Computer Chess Game } 1-0
[/pgn]
A Novelty again already at move 3(!) and a completely New -playable- gambit as well.
The eleventh move for White was a blunder which imo an engine of this strength should not make (not
even at 4/2 time control) but a human up till master level could easily make such a mistake, in blitz
at least (you can check for the following Bxf7+ move but it's not easy to see this is winning for White).
[pgn]
[Date "2025.10.06"]
[White "Patricia 5"]
[Black "KnightX45"]
[Result "1-0"]
[Annotator "EAS-Tool: 2 PawnUnits Sacrifice found in this"]
[ECO "A00"]
[PlyCount "52"]
{A00: Irregular Openings} 1. a3 {Anderssen} e5 2. d4 exd4 {Reversed Scandinavian} 3. c3 $1 $146 {Djengis gambit nr 90} ({Relevant:} 3. Qxd4 Nc6 4. Qa4 Nf6 5. Nc3 d5 6. Bg5 Be6 7. O-O-O Be7 8. e4 Nxe4 9. Bxe7 Qxe7 10. Nxe4 dxe4 11. Qxe4 O-O 12. Nf3 Rad8 13. Bd3 g6 14. Rhe1 {1-0 Nagy,G (2445)-Palczert,M (2349) Titled Tuesday intern op 28th Nov Early Chess.com INT blitz 2023 (10)}) 3... dxc3 4. Nxc3 Be7 5. e4 d6 6. Nf3 Nf6 7. Be2 O-O 8. Qc2 {The position is equal.} Bd7 9. O-O Re8 10. h3 a6 11. Bc4 {Hoping for e4-e5.} b5 $2 {[#] decisive mistake} (11... Nc6 $11 {and Black stays safe.}) 12. Bxf7+ $1 $18 {Decoy} Kxf7 (12... Kh8 13. Bxe8) 13. Qb3+ (13. Ng5+ {or} Kf8 {1} 14. Qb3 {1} d5 {2} 15. Nxd5 {1} Nxd5 {1} 16. Qxd5 {1} Bxg5 {3} 17. Bxg5 {1} Qc8 {2} 18. Qxa8 {1}) 13... d5 14. Nxd5 Kf8 15. Ng5 {Inhibits Bd7-e6. Threatening mate with Nd5xf6.} Nxd5 16. Qxd5 Bxg5 17. Bxg5 (17. Qxa8 $2 {loses.} Bf6 18. Qa7 Rxe4 19. Qc5+ Kg8 20. Qd5+ Re6 $17) 17... c6 18. Qd6+ Re7 19. f4 ({Stronger than} 19. Qxe7+ Qxe7 20. Bxe7+ Kxe7 $17) 19... Kf7 20. f5 (20. Bxe7 Qxe7 21. Qxe7+ Kxe7 $11) 20... Qb6+ 21. Kh1 Re8 22. e5 Kg8 23. e6 h5 24. e7 Bxf5 25. Rxf5 {Black is weak on the dark squares} Nd7 26. Qxd7 {White took control after the opening. Weighted Error Value: White=0.00 (flawless) /Black=0.64} c5 {1-0 Patricia 5.0-KnightX 4.5 Computer Chess Game } 1-0
[/pgn]
-
jefk
- Posts: 1045
- Joined: Sun Jul 25, 2010 10:07 pm
- Location: the Netherlands
- Full name: Jef Kaan
Re: Beauty contest
nr 46
Another novelty at move 3 (!), a mistake at move 18 by Rodin,
but nevertheless an interesting game:
[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2025.09.18"]
[Round "15"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 2 PawnUnits Sacrifice found in this"]
[ECO "A00"]
[PlyCount "63"]
[GameId "2230027713964140"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]
{A00: Irregular Openings} 1. h3 {Clemenz opening} e5 2. d4 {often played recently by Ukranian master Orest Vovk} ({Relevant:} 2. e4 Nf6 3. Nc3 Nc6 4. Nf3 Bb4 5. a3 Bxc3 6. dxc3 d6 7. Bd3 O-O 8. Qe2 Qe7 9. Bg5 Nd8 {1-0 Carlsen,M (2833)-Aravindh,C (2731) Titled Tuesday intern op 25th Mar Early Chess.com INT blitz 2025 (5)}) 2... e4 $6 (2... exd4 $11) 3. c4 $1 $146 ({Predecessor:} 3. Bf4 d5 4. e3 Bd6 5. Bxd6 Qxd6 6. Nc3 Nf6 7. g4 O-O 8. Nge2 Nbd7 9. Bg2 h6 10. Ng3 {0-1 Brown,G (1757)-Kammin,S (1795) BCF-chT4 1920 (4NCL) online Lichess.org INT 2020 (7.72)}) 3... Nf6 4. Bg5 Bb4+ 5. Nd2 h6 6. Bxf6 Qxf6 7. e3 d6 8. Ne2 {White is slightly better.} O-O 9. a3 Bxd2+ 10. Qxd2 Bf5 11. Nf4 Nd7 12. g4 Be6 13. Be2 {Strongly threatening Nf4-h5.} Nb6 14. h4 (14. Qc2 $16) 14... Bxc4 $14 15. Bxc4 Nxc4 16. Qe2 Nb6 17. O-O-O $1 g6 (17... c6 {2} 18. Rdg1 {2} Kh7 {1} 19. Rh3 {1} Rg8 {1} 20. Rhg3 $14 {1}) 18. g5 $1 {Black cannot hold the game after this.} hxg5 $2 {Qf5 would have been better} (18... Qf5 $1 $14) 19. hxg5 $18 Qxg5 (19... Qf5 {is a better chance.}) 20. Rdg1 Qf5 21. Rh5 $1 Qd7 22. Rhg5 Qc6+ 23. Kb1 {Threatening mate with Qe2-h5.} Rfe8 {[#]} 24. Nxg6 {Demolition} fxg6 25. Rxg6+ Kf8 26. Rg7 Qd7 27. Rxd7 Nxd7 28. Qg4 Ke7 {White is clearly winning.} 29. Qf5 Rg8 {Prevents Rg1-g7+} 30. Qh7+ {[#] Skewer} Kf6 31. Rxg8 Rxg8 {Weighted Error Value: White=0.03 (flawless) /Black=0.84} 32. Qxg8 1-0
[/pgn]
The move 1.h3 is played quite often by FM Orest Vovkov, quite a strong chess player
https://players.chessbase.com/en/player ... est/278881
Gained quite a few points in recent years; maybe due to this awesome Clemenz opening
with the response 2.d4! against 1...e5, who knows.
Another novelty at move 3 (!), a mistake at move 18 by Rodin,
but nevertheless an interesting game:
[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2025.09.18"]
[Round "15"]
[White "Rebel-Extreme-1.1"]
[Black "Rodin v8.00"]
[Result "1-0"]
[Annotator "EAS-Tool: 2 PawnUnits Sacrifice found in this"]
[ECO "A00"]
[PlyCount "63"]
[GameId "2230027713964140"]
[EventDate "2025.??.??"]
[TimeControl "240+2"]
{A00: Irregular Openings} 1. h3 {Clemenz opening} e5 2. d4 {often played recently by Ukranian master Orest Vovk} ({Relevant:} 2. e4 Nf6 3. Nc3 Nc6 4. Nf3 Bb4 5. a3 Bxc3 6. dxc3 d6 7. Bd3 O-O 8. Qe2 Qe7 9. Bg5 Nd8 {1-0 Carlsen,M (2833)-Aravindh,C (2731) Titled Tuesday intern op 25th Mar Early Chess.com INT blitz 2025 (5)}) 2... e4 $6 (2... exd4 $11) 3. c4 $1 $146 ({Predecessor:} 3. Bf4 d5 4. e3 Bd6 5. Bxd6 Qxd6 6. Nc3 Nf6 7. g4 O-O 8. Nge2 Nbd7 9. Bg2 h6 10. Ng3 {0-1 Brown,G (1757)-Kammin,S (1795) BCF-chT4 1920 (4NCL) online Lichess.org INT 2020 (7.72)}) 3... Nf6 4. Bg5 Bb4+ 5. Nd2 h6 6. Bxf6 Qxf6 7. e3 d6 8. Ne2 {White is slightly better.} O-O 9. a3 Bxd2+ 10. Qxd2 Bf5 11. Nf4 Nd7 12. g4 Be6 13. Be2 {Strongly threatening Nf4-h5.} Nb6 14. h4 (14. Qc2 $16) 14... Bxc4 $14 15. Bxc4 Nxc4 16. Qe2 Nb6 17. O-O-O $1 g6 (17... c6 {2} 18. Rdg1 {2} Kh7 {1} 19. Rh3 {1} Rg8 {1} 20. Rhg3 $14 {1}) 18. g5 $1 {Black cannot hold the game after this.} hxg5 $2 {Qf5 would have been better} (18... Qf5 $1 $14) 19. hxg5 $18 Qxg5 (19... Qf5 {is a better chance.}) 20. Rdg1 Qf5 21. Rh5 $1 Qd7 22. Rhg5 Qc6+ 23. Kb1 {Threatening mate with Qe2-h5.} Rfe8 {[#]} 24. Nxg6 {Demolition} fxg6 25. Rxg6+ Kf8 26. Rg7 Qd7 27. Rxd7 Nxd7 28. Qg4 Ke7 {White is clearly winning.} 29. Qf5 Rg8 {Prevents Rg1-g7+} 30. Qh7+ {[#] Skewer} Kf6 31. Rxg8 Rxg8 {Weighted Error Value: White=0.03 (flawless) /Black=0.84} 32. Qxg8 1-0
[/pgn]
The move 1.h3 is played quite often by FM Orest Vovkov, quite a strong chess player
https://players.chessbase.com/en/player ... est/278881
Gained quite a few points in recent years; maybe due to this awesome Clemenz opening
with the response 2.d4! against 1...e5, who knows.
-
jefk
- Posts: 1045
- Joined: Sun Jul 25, 2010 10:07 pm
- Location: the Netherlands
- Full name: Jef Kaan
Re: Beauty contest
nr 47
last one in this series with 4-2 time control, again with the novelty and the (new) gambit 3.d4!?
in the Sicilian Grand Prix attack as in games 3 and 37. This time with the better move
4.Nf3 instead of 4.Bc4 as in game 37, and the result is a wild, spectacular game.
[pgn]
[Event "Computer Chess Game"]
[Date "2025.09.20"]
[Round "5"]
[White "Patricia 5"]
[Black "KnightX4.5"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "60"]
[EventDate "2025.??.??"]
1. e4 c5 2. f4 {Sicilian Grand Prix B21} Nc6 3. d4 $1 $146 cxd4 4. Nf3 d5 5. e5 Bg4 6. Nbd2 Nh6 7. h3 Nf5 $5 (7... Bxf3 {3} 8. Qxf3 {2} Nf5 {1} 9. Bd3 {4} g6 {2} 10. Nb3 {2} e6 {1} 11. g4 {1} Qh4+ {1} 12. Qf2 {2} Qxf2+ {1} 13. Kxf2 {1} Nfe7 $15 {1}) 8. hxg4 {The position is equal.} Ne3 {going for the rook at a1} 9. Qe2 Nxc2+ 10. Kf2 {White has lost castling rights} Nxa1 11. e6 fxe6 12. Ng5 {[#]} (12. Qd3 Qb6 13. Rxh7 Rxh7 14. Qxh7 d3+ 15. Kg3 Qc5 16. Qg6+ Kd7 17. Bxd3 Qxc1 $19) 12... e5 13. fxe5 Qb6 (13... e6 $1 14. Ndf3 $1 {3} (14. Nxe6 $2 {-2.06/21 14.Pd2-f3 0.00} Qe7 $1 {8}) 14... Qb6 {2} (14... Kd7 15. Qd3 {3} Qb6 {2} 16. Kg3 $11 {1}) 15. Kg3 {2} O-O-O $11 {2}) 14. Kg3 Nc2 15. Ndf3 Ne3 16. Bxe3 dxe3 17. Qd3 Rd8 (17... Qxb2 $6 18. Be2 g6 {6} (18... Nxe5 19. Qxd5 Rd8 20. Bb5+ Nc6 21. Bxc6+ bxc6 22. Qxc6+ Rd7 23. Rc1 {2} (23. Qa8+ Rd8 24. Qc6+ Rd7 25. Rb1 $11) 23... Qb8+ {2} 24. Kh3 {1} Qc7 {4} 25. Qxc7 {1} Rxc7 $16 {1}) (18... Qxa2 19. Ne6 {4} (19. Qxe3 $17) 19... a6 {10} 20. Nc7+ {2} Kd8 {1} 21. Nxd5 $18 {4}) (18... Qxa2 {3} 19. Ne6 {3}) 19. Ne6 {2} Qb6 {2} 20. Qxd5 $16 {2}) (17... e6 $1 {an alternative} 18. Nxe6 {3} Ne7 {3} 19. Qb5+ {3} Qxb5 {2} 20. Bxb5+ {1} Kf7 {3} 21. Nc7 $14 {2}) 18. Qf5 g6 $1 {so far, so good, in a highly unbalanced, sharp position} (18... Qxb2 $2 19. Bd3 Qf2+ {2} 20. Kh3 {2} e2 {2} 21. e6 $18 {2}) 19. Qe6 {Chess con chili. (according to Fritz); White now also cannot castle anymore} Qxb2 $2 {3.53/23 [#] going for the White king but its a decisive mistake, KnightX4.5 (>2800 Elo) is seeing this too late)} (19... Bg7 $1 20. Qf7+ Kd7 {0 And now ...Qb6xb2! would win.} 21. Qxg7 {1 and a2-a4 would now be decisive but it's White move} h5 $13 {2}) 20. Bd3 $1 $18 Qf2+ {5.20/19 [#]} (20... Bg7 21. Rxh7 {2} Bxe5+ {0} 22. Nxe5 {1} Qxe5+ {1} 23. Qxe5 {1} Nxe5 {1} 24. Bb5+ {1} Nc6 $18 {1}) (20... Qxa2 21. Rxh7 Qf2+ 22. Kf4 $18) (20... Bg7 $142 {3.45/25}) 21. Kh3 $1 Bg7 ({Much weaker is} 21... Qxa2 22. Rb1) 22. Rf1 Qxa2 23. Rb1 (23. Qf7+ Kd7 24. Qxg7 h5 25. Qxg6 hxg4+ 26. Kxg4 Qxg2+ 27. Kf4 Rdg8 28. Bf5+ Kc7 29. Ne6+ Kb8 30. Qxg2 Rxg2 $11) 23... Qxb1 24. Bxb1 (24. Qf7+ Kd7 25. Bxb1 Bh6 $18) 24... d4 25. Be4 Nb4 26. Bxb7 {White wants to mate with Bb7-c6+.} Rb8 27. Bc8 {White mates.} Bxe5 28. Nxe5 d3 29. Qd7+ Kf8 30. Ne6+ {0} {Weighted Error Value: White=0.01 (flawless) /Black=0.74} Kg8 {}
1-0
[/pgn]
So i nominate this game for a position in the top ten. Is this gambit really so awesome ?
Well it's mainly because it's new, and thus not in Black's book, with the Chinese database
it can be (almost) 'refuted' (0.2 for Black) but then Black really needs to know how to play
(actually this is true for some other games posted previously in this thread as well;
although playable, with eg the Kings gambit I hardly found any spectacular wins (occasionally with
3.Bc4?!) probably because the Black opening books defend rather well. An exception is
the Goering, double pawn sacrifice gambit, also with Scotch gambit move order which still
pops up quite a few times with the Pohl 'interesting wins' tool; as i can show later on.
Sure, KnightX4.5 made a mistake at move 19 in above game , but its still a >2800 engine, so
comparable to a player as Carlsen (!?!??! maybe better at such fast time controls) i presume.
https://chessengines.blogspot.com/2025/ ... s-and.html
https://chessengines.blogspot.com/2025/ ... s-and.html
https://www.chessprogramming.org/KnightX
The mistake is an example of wishful thinking, Black can go for the White king but then
has neglected his defensive position (19...Bg7 would have been the required prophylactic move)
and thus subsequently, is squeezed in a mating net itself.
In the coming series (next week or so) games with 5-3 time control which with my (6 thrds)
computer (no pondering) should give stronger defenses (also for Kntx45) against P5.
Note for human players, do these games indicate you can just play some odd gambits (in blitz)
and then expect to win just like that with some aggressive play ? Well not really, my gambit
book goes several moves (12 ply or so) deep and gets better every month. No human can
remember all these odd gambits simultaneously. But what a - chess club level- payer can do,
is setting up a blitz repertoire, choosing one or two preferable/ chosen gambits , learn
them well, practice with them, and then possibly get better (blitz) results; my 2 cnts.
last one in this series with 4-2 time control, again with the novelty and the (new) gambit 3.d4!?
in the Sicilian Grand Prix attack as in games 3 and 37. This time with the better move
4.Nf3 instead of 4.Bc4 as in game 37, and the result is a wild, spectacular game.
[pgn]
[Event "Computer Chess Game"]
[Date "2025.09.20"]
[Round "5"]
[White "Patricia 5"]
[Black "KnightX4.5"]
[Result "1-0"]
[ECO "B21"]
[PlyCount "60"]
[EventDate "2025.??.??"]
1. e4 c5 2. f4 {Sicilian Grand Prix B21} Nc6 3. d4 $1 $146 cxd4 4. Nf3 d5 5. e5 Bg4 6. Nbd2 Nh6 7. h3 Nf5 $5 (7... Bxf3 {3} 8. Qxf3 {2} Nf5 {1} 9. Bd3 {4} g6 {2} 10. Nb3 {2} e6 {1} 11. g4 {1} Qh4+ {1} 12. Qf2 {2} Qxf2+ {1} 13. Kxf2 {1} Nfe7 $15 {1}) 8. hxg4 {The position is equal.} Ne3 {going for the rook at a1} 9. Qe2 Nxc2+ 10. Kf2 {White has lost castling rights} Nxa1 11. e6 fxe6 12. Ng5 {[#]} (12. Qd3 Qb6 13. Rxh7 Rxh7 14. Qxh7 d3+ 15. Kg3 Qc5 16. Qg6+ Kd7 17. Bxd3 Qxc1 $19) 12... e5 13. fxe5 Qb6 (13... e6 $1 14. Ndf3 $1 {3} (14. Nxe6 $2 {-2.06/21 14.Pd2-f3 0.00} Qe7 $1 {8}) 14... Qb6 {2} (14... Kd7 15. Qd3 {3} Qb6 {2} 16. Kg3 $11 {1}) 15. Kg3 {2} O-O-O $11 {2}) 14. Kg3 Nc2 15. Ndf3 Ne3 16. Bxe3 dxe3 17. Qd3 Rd8 (17... Qxb2 $6 18. Be2 g6 {6} (18... Nxe5 19. Qxd5 Rd8 20. Bb5+ Nc6 21. Bxc6+ bxc6 22. Qxc6+ Rd7 23. Rc1 {2} (23. Qa8+ Rd8 24. Qc6+ Rd7 25. Rb1 $11) 23... Qb8+ {2} 24. Kh3 {1} Qc7 {4} 25. Qxc7 {1} Rxc7 $16 {1}) (18... Qxa2 19. Ne6 {4} (19. Qxe3 $17) 19... a6 {10} 20. Nc7+ {2} Kd8 {1} 21. Nxd5 $18 {4}) (18... Qxa2 {3} 19. Ne6 {3}) 19. Ne6 {2} Qb6 {2} 20. Qxd5 $16 {2}) (17... e6 $1 {an alternative} 18. Nxe6 {3} Ne7 {3} 19. Qb5+ {3} Qxb5 {2} 20. Bxb5+ {1} Kf7 {3} 21. Nc7 $14 {2}) 18. Qf5 g6 $1 {so far, so good, in a highly unbalanced, sharp position} (18... Qxb2 $2 19. Bd3 Qf2+ {2} 20. Kh3 {2} e2 {2} 21. e6 $18 {2}) 19. Qe6 {Chess con chili. (according to Fritz); White now also cannot castle anymore} Qxb2 $2 {3.53/23 [#] going for the White king but its a decisive mistake, KnightX4.5 (>2800 Elo) is seeing this too late)} (19... Bg7 $1 20. Qf7+ Kd7 {0 And now ...Qb6xb2! would win.} 21. Qxg7 {1 and a2-a4 would now be decisive but it's White move} h5 $13 {2}) 20. Bd3 $1 $18 Qf2+ {5.20/19 [#]} (20... Bg7 21. Rxh7 {2} Bxe5+ {0} 22. Nxe5 {1} Qxe5+ {1} 23. Qxe5 {1} Nxe5 {1} 24. Bb5+ {1} Nc6 $18 {1}) (20... Qxa2 21. Rxh7 Qf2+ 22. Kf4 $18) (20... Bg7 $142 {3.45/25}) 21. Kh3 $1 Bg7 ({Much weaker is} 21... Qxa2 22. Rb1) 22. Rf1 Qxa2 23. Rb1 (23. Qf7+ Kd7 24. Qxg7 h5 25. Qxg6 hxg4+ 26. Kxg4 Qxg2+ 27. Kf4 Rdg8 28. Bf5+ Kc7 29. Ne6+ Kb8 30. Qxg2 Rxg2 $11) 23... Qxb1 24. Bxb1 (24. Qf7+ Kd7 25. Bxb1 Bh6 $18) 24... d4 25. Be4 Nb4 26. Bxb7 {White wants to mate with Bb7-c6+.} Rb8 27. Bc8 {White mates.} Bxe5 28. Nxe5 d3 29. Qd7+ Kf8 30. Ne6+ {0} {Weighted Error Value: White=0.01 (flawless) /Black=0.74} Kg8 {}
1-0
[/pgn]
So i nominate this game for a position in the top ten. Is this gambit really so awesome ?
Well it's mainly because it's new, and thus not in Black's book, with the Chinese database
it can be (almost) 'refuted' (0.2 for Black) but then Black really needs to know how to play
(actually this is true for some other games posted previously in this thread as well;
although playable, with eg the Kings gambit I hardly found any spectacular wins (occasionally with
3.Bc4?!) probably because the Black opening books defend rather well. An exception is
the Goering, double pawn sacrifice gambit, also with Scotch gambit move order which still
pops up quite a few times with the Pohl 'interesting wins' tool; as i can show later on.
Sure, KnightX4.5 made a mistake at move 19 in above game , but its still a >2800 engine, so
comparable to a player as Carlsen (!?!??! maybe better at such fast time controls) i presume.
https://chessengines.blogspot.com/2025/ ... s-and.html
https://chessengines.blogspot.com/2025/ ... s-and.html
https://www.chessprogramming.org/KnightX
The mistake is an example of wishful thinking, Black can go for the White king but then
has neglected his defensive position (19...Bg7 would have been the required prophylactic move)
and thus subsequently, is squeezed in a mating net itself.
In the coming series (next week or so) games with 5-3 time control which with my (6 thrds)
computer (no pondering) should give stronger defenses (also for Kntx45) against P5.
Note for human players, do these games indicate you can just play some odd gambits (in blitz)
and then expect to win just like that with some aggressive play ? Well not really, my gambit
book goes several moves (12 ply or so) deep and gets better every month. No human can
remember all these odd gambits simultaneously. But what a - chess club level- payer can do,
is setting up a blitz repertoire, choosing one or two preferable/ chosen gambits , learn
them well, practice with them, and then possibly get better (blitz) results; my 2 cnts.