game nr 15
Another Sicilian wing gambit, but this time declined. What do you do in such a situation ?
Indeed, simply throw in another gambit!

This time in Kings gambit style (with 4.f4!).
An older game with P4 instead of P5, nevertheless a win against the -GM level- Crafty engine.
[pgn]
[Event "Computer Chess Game"]
[Site "DESKTOP-G2238OJ"]
[Date "2024.12.31"]
[Round "29"]
[White "Patricia 4.0"]
[Black "Crafty-25.6 JA"]
[Result "1-0"]
[Annotator "IWS-Tool: 5+ PawnUnits Sacrifice"]
[ECO "B20"]
[PlyCount "131"]
[GameId "2222388168995233"]
[EventDate "2024.??.??"]
[TimeControl "300+2"]
{B20: Sicilian: Unusual White 2nd moves} 1. e4 c5 2. a3 {Mengarini} Nc6 $146 ({Relevant:} 2... g6 3. b4 (3. Nf3 Bg7 4. c3 d5 5. exd5 Qxd5 6. Bb5+ Bd7 7. Bxd7+ Nxd7 8. O-O Ngf6 9. d4 O-O {0-1 Zurba,J-Norris,A (1917) Cambridge op 2023 (2)}) 3... Bg7 4. Nc3 (4. c3 b6 5. f4 Bb7 6. Qc2 d5 7. e5 Nc6 8. Nf3 Nh6 9. Be2 Rc8 10. bxc5 bxc5 {0-1 Guseva,L (1956)-Siritsa,D (2287) Kimry-ch 2015 (2)}) 4... d6 5. h4 h5 6. Rb1 cxb4 7. axb4 Nf6 8. d4 O-O {0-1 Mamedyarov,S (2723)-Mamedov,R (2651) Gashimov Memorial Blitz 9th Baku 2023 (16)}) 3. b4 $1 e5 4. f4 $3 exf4 5. Nf3 cxb4 6. d4 g5 7. Bc4 {[#]} g4 $146 ({Predecessor:} 7... h6 {7...g5-g4 -1.43} 8. axb4 Bg7 9. c3 Nf6 (9... Nge7 $15) 10. b5 (10. e5 $14) 10... Ne7 $15 11. e5 Nh7 (11... Ne4 $15) 12. Qb3 ({White should try} 12. O-O $14) 12... O-O $11 13. Ba3 Nf5 {Dodges Ba3-d6} (13... g4 $1 $11 14. Nh4 Nc6 15. bxc6 Qxh4+ 16. Kd1 dxc6) 14. Bxf8 $14 Qxf8 15. O-O Ne3 (15... d6 $14) 16. Re1 (16. Nbd2 $1 $18 {and White stays clearly on top.}) 16... d5 (16... g4 $16) 17. exd6 (17. Bxd5 $18 {Hoping for Nf3-d2.} g4 18. Nh4 Nxd5 19. Qxd5) 17... Bf5 {1-0 Frink,F (2123)-Kabyzhanov,B (2042) W-ch Disabled Dresden 2015 (7)} (17... g4 $16 18. Ne5 Ng5)) 8. O-O $3 {Black is clearly better. (according to Obsidian eval) But it's in Kings gambit Muzio style} gxf3 9. Qxf3 Bg7 (9... Nxd4 10. Bxf7+ (10. Qxf4 $2 f6 $19) 10... Ke7 (10... Kxf7 11. Qh5+ Ke6 12. Bxf4 $17) 11. Qd3 $17) ({Black should play} 9... Qb6 $1 $17 10. Bxf7+ Kd8 (10... Kxf7 $2 11. Qxf4+ $18)) 10. Bxf7+ $1 $11 {Decoy} Ke7 $2 {[#]} (10... Kxf7 $15 {keeps the upper hand.} 11. Qxf4+ Nf6 (11... Qf6 12. Qg3 $11)) 11. Bxf4 $1 {White is more active.} Bxd4+ (11... Kxf7 12. e5 (12. Bc7+ Qf6 $11) 12... h5 (12... Nxd4 13. Qh5+ Ke6 14. Bg5 $16) 13. Bg5+ $16) 12. Kh1 Nf6 (12... Bxa1 13. Bg5+ Kd6 14. Bxd8 Nxd8 15. c3 $18 (15. axb4 Be5 $18)) (12... Kxf7 13. Bc7+ Qf6 14. Qb3+ Ke8 15. Rxf6 Nxf6 16. c3 $11) 13. c3 {Some like it hot} bxc3 {[#]} (13... Kxf7 $2 14. cxd4 Nxd4 15. Qd3 $16) 14. Nxc3 $1 Kxf7 15. Nd5 $1 {sacrificing the rook at a1 but starting an attack} {Black is on the road to losing.} Bxa1 $2 (15... d6 $11 16. Bg5 Bxa1 17. Qh5+ Ke6 18. Qh3+ Kf7 19. Qh5+) 16. Bc7 $18 Qf8 17. Rxa1 Rg8 18. Nxf6 (18. Qxf6+ Ke8 19. Qh4 Qg7 $17 (19... Rg6 20. Bf4 $11)) 18... Kg7 19. Nh5+ Kh6 (19... Kh8 $6 20. Qc3+ Rg7 21. Bf4 $18) 20. Bf4+ $1 Kg6 21. Rf1 $1 d5 22. Ng3 (22. exd5 Nd4 23. Qd1 Nf5 $15 (23... Qxa3 $2 24. Bc1 $18)) 22... h6 23. exd5 Ne7 24. Qh5+ $1 Kh7 25. Be3 $1 (25. Be5 Nf5 26. Ne4 (26. Nxf5 $2 Rg5 $19) 26... Rg6 $19) 25... Bf5 {and ...Qf8-g7! would now be decisive} (25... Qg7 26. Rf7 Kh8 27. Bd4 (27. Qxh6+ Qxh6 28. Bxh6 Nxd5 $19) (27. Rxg7 Rxg7 28. Bd4 {Pin} Kh7 $18) (27. Bxh6 Qxf7 28. Qxf7 Nf5 $18) 27... Kh7 28. Ne4 (28. Rxg7+ Rxg7 29. Bxg7 Kxg7 $18) 28... Nf5 29. Rxg7+ (29. Bxg7 Ng3+ 30. hxg3 Rxg7 31. Nf6+ {Deflection} Kh8 32. Qxh6+ Rh7 33. Rxh7#) 29... Kh8 30. Rxb7+ Rg7 31. Qe8+ Kh7 32. Nf6#) 26. d6 $1 (26. Nxf5 Rg6 $14) 26... Bg6 {[#]} 27. Qh4 $1 (27. dxe7 Qxf1+ (27... Bxh5 28. exf8=B Rgxf8 29. Rxf8 $15) 28. Nxf1 Bxh5 $19) (27. Rxf8 Bxh5 28. dxe7 Bg6 $11) 27... Qxf1+ (27... Nf5 28. Nxf5 h5 (28... Bxf5 $2 29. Rxf5 Qxd6 30. Rf7+ Rg7 31. Qe4+ Kg8 32. Rxg7+ Kxg7 33. Qxb7+ Kf6 34. Qxa8 $18) 29. Kg1 $18 (29. d7 Rg7 $18)) 28. Nxf1 Nf5 29. Qb4 Rad8 30. Bf4 (30. Qxb7+ Rg7 31. Qb4 Rxd6 $11) ({Not} 30. Bxa7 Rxd6 31. Ne3 (31. Qxb7+ $2 {loses.} Rg7 $19) 31... Rg7 $16) 30... Rg7 31. Nd2 {4.1 ahead according to Obsidian analysis; so it could have been adjudicated; with P4 the final win still takes quite some more moves} Re8 32. Nf3 {Against Re8-e1+} Rd7 33. h3 a6 34. Kh2 Re6 35. Qb3 Re8 36. Qa4 Red8 37. Qb4 Ng7 38. Nh4 Re8 39. Qa4 Red8 40. Nxg6 Kxg6 41. Be5 Ne8 42. Qe4+ Kf7 43. Qf5+ Kg8 44. Qg6+ Ng7 45. Bf6 Rf8 46. Qxh6 b6 47. Qg6 Rff7 48. Be5 Kf8 49. h4 Nf5 50. h5 Nh4 {[#]} 51. Qe4 $1 Rh7 52. Qxh4 b5 53. Qf6+ Ke8 54. Qe6+ Kf8 55. h6 b4 56. axb4 a5 57. bxa5 Rhf7 58. g4 Rf2+ 59. Kg3 Rff7 60. g5 {Be5-f6 would kill now.} Rh7 61. Bf6 Rc7 62. dxc7 {White mates.} Rxc7 63. g6 Rc3+ 64. Kh4 Rc4+ 65. Qxc4 Ke8 {Weighted Error Value: White=0.03 (flawless) /Black=0.40} 66. Qc8# 1-0
[/pgn]
More normal for the 4th move would be 4.b5, played 137 times, with 43 pct 'score' (success).
the gambit move 4.f4!! scores 67 pct, not entirely new, but only played three times before
(by humans) highest rating 2123 (an FM) with the move order 1.e4 c5 2.b4 Nc6 3.a3.
Also good is 4.Bc4 played five times, with 70 pct success, eg. played by GM Shabalov (2563) in a rapid
(not blitz!) game, in 2017 which he won.
https://en.wikipedia.org/wiki/Alexander_Shabalov#
"Shabalov was born in Riga, Latvia(1967), and was known during much of his career for courting complications even at
the cost of objective
soundness, much like his fellow Latvians Mikhail Tal and Alexei Shirov. He has transitioned
to a more conservative and positional playing style as of 2019".
My comment: such 'soundness' depends on time control, in a blitz game the Sicilian wing gambit is
certainly playable, especially if you know it (imo it works best against Sicilians with ...e6).
The move 8.0-0! is in the style of the Muzio gambit, which actually should be called Polerio gambit,
after the 16 th (!) century Italian chess theoretician G. Polerio. Although P5 finds it independently,
it was already in my gambit book, so played instantly.
https://en.wikipedia.org/wiki/Giulio_Cesare_Polerio
https://www.chess.com/blog/batgirl/muzio-madness