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<p>Recently I was looking at the King's Gambit Line 1.e4 e5 2.f4 g5 and wanted to explore this further because of my curiosity. I have for years been playing the move g4 or g5 in different opening settings such as:<br>
<br>
1.d4 N6 2. g4 Gibbins-Weidenhagen Gambit<br>
1.c4 Nf6 2.g4 English-Weidenhagen Gambit<br>
1.d4 Nf6 2.c4 g5 Medusa Gambit<br>
<br>
And also explored the Omega Gambits. Now I am onto my second generation of Omega Gambits (e pawn sac in the opening). See lines below:<br>
<br>
1. d4 Nf6 2.e4 Omega Gambit<br>
1. d4 d5 2.Nf3 e5 Omega-Osiris Gambit<br>
1. Nf3 d5 2.g3 e5 Omega-Delta Gambit<br>
1. c4 Nf6 2.e4 Omega-Achilles Gambit<br>
<br>
And is it possible to play g5 against the King's Gambit ? At first glance it seems unsound but I have to now put away my preconceptions and prejudices and take a further look to see if it is playable. I therefore downloaded some games from my chess databases and found 8 games and discovered that I did played this line of the King's Gambit many years ago against Black Dragon (2400+) and lost that game. Out of 8 games Black won 2 times and drew once. One game was won by a master and another by an expert. See sample games below:<br>
<br>
[Event "W-ch GT267 corr"]<br>
[Site "ICCF corr"]<br>
[Date "1989.??.??"<wbr>]<br>
[Round "?"]<br>
[White "Foenander, Philip A2"]<br>
[Black "Voloskov, Vasily Yakinovich"]<br>
[Result "0-1"]<br>
[ECO "C30"]<br>
[WhiteElo "2110"]<br>
[BlackElo "2280"]<br>
[PlyCount "42"]<br>
[EventDate "1989.??.??"<wbr>]<br>
[EventType "tourn (corr)"]<br>
[EventRounds "14"]<br>
[Source "ChessBase"]<br>
[SourceDate "2002.05.23"<wbr>]<br>
<br>
1. e4 e5 2. f4 g5 3. fxe5 d5 4. exd6 Bxd6 5. d4 h5 6. e5 Be7 7. Bc4 Bg4 8. Nf3 Nc6 9. O-O Bxf3 10. Qxf3 Qxd4+ 11. Be3 Qxc4 12. Nd2 Qe6 13. Qf5 Nh6 14. Qxe6 fxe6 15. Ne4 Nf7 16. Nf6+ Bxf6 17. Rxf6 Ke7 18. Raf1 Ncxe5 19. Bc5+ Nd6 20. Bd4 Nd7 21. Rg6 Rag8 0-1<br>
<br>
[Event "ICC r 15 0"]<br>
[Site "Internet Chess Club"]<br>
[Date "1997.12.20"<wbr>]<br>
[Round "?"]<br>
[White "BlackDragon"<wbr>]<br>
[Black "Evilone"]<br>
[Result "1-0"]<br>
[ECO "C30"]<br>
[WhiteElo "2432"]<br>
[BlackElo "2072"]<br>
[PlyCount "127"]<br>
<br>
1. e4 e5 2. f4 g5 3. fxe5 Bg7 4. d4 c5 5. dxc5 Nc6 6. Be2 h6 7. c3 Nxe5 8. Nf3 Ne7 9. O-O O-O 10. Qd6 N7g6 11. Nd4 Qe7 12. Qxe7 Nxe7 13. Be3 b6 14. Nb5 Bb7 15. Nd6 Bc6 16. cxb6 axb6 17. Na3 Rab8 18. Nac4 b5 19. Nb6 N7g6 20. Rad1 Nf4 21. Bxb5 Bxb5 22. Nxb5 Ng4 23. Bc5 Rfe8 24. Nd6 Re6 25. Rd2 Be5 26. Nbc4 Bg7 27. g3 Ng6 28. Rxf7 N4e5 29. Nxe5 Nxe5 30. Rff2 Ng4 31. Rf1 Nf6 32. Re1 Ng4 33. Nf5 Bf8 34. Bxf8 Kxf8 35. b4 Rb7 36. Rf1 Kg8 37. Rfd1 Ne5 38. Rd6 g4 39. Nxh6+ Kh8 40. a4 Rc7 41. Rxe6 dxe6 42. Rd6 Nf3+ 43. Kg2 Rxc3 44. Nxg4 Ng5 45. Rd8+ Kg7 46. Rd7+ Kf8 47. Nf2 Rc4 48. h4 Nf7 49. Rb7 Nd6 50. Rb8+ Kf7 51. e5 Nf5 52. h5 Rc3 53. Ne4 Re3 54. Ng5+ Kg7 55. Nxe6+ Kf7 56. Ng5+ Kg7 57. Nf3 Ra3 58. a5 Ne3+ 59. Kh3 Ra1 60. e6 Rh1+ 61. Nh2 Nf1 62. e7 Rxh2+ 63. Kg4 Re2 64. e8=Q 1-0<br>
<br>
[Event "Brisbane"]<br>
[Site "Brisbane"]<br>
[Date "2001.08.28"<wbr>]<br>
[Round "3.1"]<br>
[White "Kalokerinos, Paul"]<br>
[Black "Edwards, Jacob"]<br>
[Result "0-1"]<br>
[ECO "C30"]<br>
[WhiteElo "1794"]<br>
[BlackElo "2093"]<br>
[PlyCount "46"]<br>
[EventDate "2000.??.??"<wbr>]<br>
<br>
1. e4 e5 2. f4 g5 3. fxg5 Bc5 4. Nf3 Nc6 5. Bc4 d6 6. b4 Bb6 7. h3 Be6 8. Bxe6 fxe6 9. b5 Nd4 10. Nxd4 Qxg5 11. Qf3 Bxd4 12. c3 Bc5 13. h4 Qg6 14. Rf1 O-O-O 15. h5 Qg7 16. Qh3 Nh6 17. d4 exd4 18. Qxe6+ Kb8 19. Qxh6 Qg3+ 20. Kd1 Qd3+ 21. Nd2 dxc3 22. Rf3 c2+ 23. Ke1 Qd4 0-1<br>
<br>
It seems those who were successful with this line were very strong chess players who had decided to use it as a surprise weapon against the King's Gambit. There were so few games on this line so, I ran 3 chess engine tournaments with 4 participants in each engine tournament to explore this further. See the 3 chess engine tournament cross tables below:<br>
<br>
The games were played with the following conditions:<br>
<br>
Acer Athlon 4400 Dual Core Processor<br>
Operating System – Window Vista Home Premium<br>
Time control – 5 min/game<br>
2 gig ram<br>
Hash table – 512 meg<br>
All engines played the following starting position:<br>
1.e4 e5 2.f4 g5<br>
<br>
Note: recently the chess engine Twisted Logic had improved from 2500+ to 2600+ in rating strength, so I decided to place Twisted Logic in one of my engine tournaments. Also note that the new chess engines FireBird, Ivanhoe, Komodo and Deep Shredder 12 were added to my engine tournaments.<br>
<br>
King's Gambit 2…g5 Engine Tournament #1 2010<br>
<br>
1 2 3 4 Total<br>
1 Fritz 12 ** 10 11 11 5.0/6<br>
2 FireBird 1.0 Beta w32 01 ** 10 11 4.0/6<br>
3 Zappa Mexico 00 01 ** 01 2.0/6 <br>
4 Glaurung 2.0.1 00 00 10 ** 1.0/6<br>
(12 games)<br>
<br>
King's Gambit 2…g5 Engine Tournament #2 2010<br>
<br>
1 2 3 4 Total<br>
1 Komodo32 1.0 JA ** ½0 11 11 4.5/6<br>
2 IvanHoe v73 ½1 ** 10 10 3.5/6<br>
3 Deep Junior 10 00 01 ** 10 2.0/6<br>
4 Twisted Logic 20100131x 00 01 01 ** 2.0/6<br>
(12 games)<br>
<br>
King's Gambit 2…g5 Engine Tournament #3 2010<br>
<br>
1 2 3 4 Total<br>
1 Deep Shredder 12 ** 1½ 11 11 5.5/6<br>
2 Strelka 2.0 B 0½ ** 1½ 1½ 3.5/6<br>
3 Rocket v 1.2 uci 00 0½ ** 11 2.5/6<br>
4 Bright – 0.3a 00 0½ 00 ** 0.5/6<br>
(12 games)<br>
<br>
I have posted those 44 games in a pgn file called kgg51.pgn in our files section.<br>
<br>
Best Regards<br>
Clyde Nakamura<br>
<br>
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