The Four Pawns Attack in the King's Indian Defence is a chess opening that begins with the moves:

1. d4 Nf6
2. c4 g6
3. Nc3 Bg7
4. e4 d6
5. f4

White immediately builds up a large pawn centre in order to gain a spatial advantage. Black first develops his pieces, then tries to attack White's centre by means of the pawn advances ...e7–e5, ...c7–c5 or ...f7–f5, depending on circumstances.

This formation has never attracted serious interest in high-level play, although Alexander Alekhine used it three times in the 1924 New York City tournament with a score of +1−0=2. Danish grandmaster Bent Larsen also occasionally experimented with the Four Pawns Attack.

The main variations of the Four Pawns Attack are:

The main line 5...0-0 6.Nf3 c5, when after 7.d5 Black can attack White's centre with the pawn sacrifice 7...b5 or the quieter 7...e6. The latter can transpose into the Modern Benoni.
The modern alternative 5...0-0 6.Nf3 Na6!? aims at sacrificing a pawn with 7...e5 and going into tactical complications.

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Top Chess Engine Championship, formerly known as Thoresen Chess Engines Competition (TCEC or nTCEC), is a computer chess tournament that has been run since 2010. It was organized, directed, and hosted by Martin Thoresen until the end of Season 6; from Season 7 onward it has been organized by Chessdom. It is often regarded as the Unofficial World Computer Chess Championship because of its strong participant line-up and long time-control matches on high-end hardware, giving rise to very high-class chess. The tournament has attracted nearly all the top engines compared to the World Computer Chess Championship.

After a short break in 2012, TCEC was restarted in early 2013 (as nTCEC)[5] and is currently active (renamed as TCEC in early 2014) with 24/7 live broadcasts of chess matches on its website.

PGN OF THE GAME:

[Event "TCEC Season 23 - Superfinal"]
[Site "[ Ссылка ]"]
[Date "2022.11.03"]
[Round "17.1"]
[White "LCZero 0.30-dag-9a9c42d_784968"]
[Black "Stockfish dev16_20221027"]
[Result "0-1"]
[WhiteElo "3599"]
[BlackElo "3625"]
[Variant "Standard"]
[TimeControl "7200+12"]
[ECO "E76"]
[Opening "King's Indian Defense: Four Pawns Attack"]
[Termination "Unknown"]
[Annotator "lichess.org"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4?! { (0.65 → -0.13) Inaccuracy. Be2 was best. } { E76 King's Indian Defense: Four Pawns Attack } (5. Be2 O-O 6. Be3 Na6 7. h3 e5 8. d5 Nc5 9. Qc2 Ne8) 5... c5 6. d5 O-O 7. Be2 e6 8. dxe6?! { (0.43 → -0.18) Inaccuracy. Nf3 was best. } (8. Nf3 exd5 9. cxd5 Re8 10. e5 dxe5 11. fxe5 Ng4 12. e6 fxe6) 8... fxe6 9. g4? { (0.26 → -1.04) Mistake. e5 was best. } (9. e5 dxe5 10. Qxd8 Rxd8 11. fxe5 Nfd7 12. Nb5 Nc6 13. Nc7 Rb8 14. Nxe6 Re8 15. Nxg7 Kxg7) 9... Nc6 10. Nh3 Nd4 11. Nf2 a6 12. O-O g5 13. f5 Nd7 14. Be3 Ne5 15. Kh1 b5 16. cxb5 Nxe2 17. Qxe2 Bb7 18. a4 Qe7 19. bxa6 Bxa6 20. Nb5 exf5 21. gxf5 Rxf5 22. Rg1 Rf7 23. Bxg5 Qe6 24. Rad1 Raf8 25. Rg2 Qb3 26. Qe3 Qxa4 27. Nc3 Qc2 28. Nh3 Rf1+ 29. Ng1 R1f2 30. Rxf2 Rxf2 31. Rd2 Rxd2 32. Qxd2 Qxd2 33. Bxd2 Nd3 34. Kg2 Nxb2 35. Nd5 Nd3 36. Ne2 Bb7 37. Ndc3?! { (-1.76 → -2.43) Inaccuracy. Kf3 was best. } (37. Kf3) 37... Kf7 38. Bg5 Ba6 39. Bd2 Be5 40. h4 Bf6 41. Kg3 Ne5 42. h5 Nd7 43. Kf3 Be5 44. Nd5 Nf6 45. Nxf6 Kxf6 46. Nc3 Bc4 47. Kg4 Bb3 48. Nd5+ Bxd5 49. exd5 Ke7 50. Bc1 c4 51. Kg5 Bd4?! { (-5.11 → -3.80) Inaccuracy. Ba1 was best. } (51... Ba1) 52. Kf5?! { (-3.80 → -5.06) Inaccuracy. Ba3 was best. } (52. Ba3 Be3+) 52... Kd7 53. Ke4 Be5 54. Be3 Kc7 55. Kf3 Kb7 56. Ke2 Ka6 57. Kd2 Ka5 58. Kc2 Kb4 59. Ba7 c3 60. Be3 Kc4 61. Bc1 Kxd5 62. Kd3 Ke6 63. Ba3 d5 64. h6 Kf6 65. Bc1 Kf5 66. Ba3 d4 67. Bf8 Bf4 68. Bg7 Be3 69. Bh8 Kf4 70. Bg7 Kf3 71. Bf6 c2 72. Kc4?! { (-14.48 → Mate in 8) Checkmate is now unavoidable. Kxc2 was best. } (72. Kxc2 Ke2 73. Kb3 d3 74. Kc4 d2 75. Kd5 d1=Q+ 76. Ke5 Bxh6 77. Ke6 Be3 78. Be5 h5) 72... c1=Q+ 73. Kb4 Ke4 74. Kb3 Kd5 75. Ka2 Qc3 76. Bh8 Bc1 77. Bxd4 Kxd4 { Black wins. } 0-1

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