[Event "U.S.Open Palo Alto"] [Site "https://lichess.org/study/nPSK1WAK/zgN2Fmg1"] [Date "1981.??.??"] [Round "12"] [White "Silman, Jeremy"] [Black "Gogel, Dennis"] [Result "1-0"] [Annotator "Silman, Jeremy"] [Variant "Standard"] [ECO "E75"] [Opening "King's Indian Defense: Averbakh Variation, Main Line"] [Source "https://lichess.org/study/nPSK1WAK/zgN2Fmg1"] [Orientation "white"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. exd5 Re8 10. Nf3 Bg4 11. O-O Nbd7 12. h3 Bxf3 13. Bxf3 { I've never understood why Black would want to play this passive line where he cedes White the two bishops and a space advantage. Black can't hope for anything more than a draw, while White can put his opponent though many hours of torture. } 13... a6 14. a4 b6 15. Rae1 { This was the standard way that Uhlmann and Polugaevsky handled this position half a century ago but modern engines point to } (15. g4! { as even stronger. }) 15... Rxe1 16. Rxe1 Qf8 17. Bd1 { The bishop wasn't doing anything on f3.Repositioning it on c2 keeps the enemy knights off of e4 and takes aim at Black's kingside. It can also can penetrate on the queenside via Ba4 in certain variations. } 17... h6 18. Be3 Rb8 19. Bc2 Ne8 20. f4 { Following Steinitz's rule that states: "The way to beat knights is to deprive them of any advanced support points." } (20. b3 Nc7 21. Bd3 Ne5 22. Be2 { was perhaps more precise, holding off on f4 for awhile, as the text allows Black undeserved counterplay. }) 20... Nc7 21. Bd3 { This prevents ...b6-b5, leaving Black with no counterplay.Such a helpless situation brings on depression and often leads to errors based on desperation. } 21... Re8 { Threatening to exchange some pieces by ...Rxe3 followed by ...Bd4. } 22. Bf2?! (22. Kf1) 22... f5? { This pseudo-active move is a step in the wrong direction.During the game I thought he had to swap Rooks and hang on for dear life.In fact } (22... Bd4! { was Black's chance to obtain counterplay. After } 23. Bxd4 Rxe1+ 24. Qxe1 cxd4 25. Ne2 Nc5 26. Qd2 Qg7 { chances are equal. }) 23. Rb1?! { Intending to break through on the queenside by b2-b4. } (23. Ne2 Qf7 24. b4 { was a better way to do this. }) 23... a5 (23... Qf7 24. b4 cxb4 25. Rxb4 Qf6 26. Ne2 a5 27. Rb1 Na6 28. Nd4 Nac5 { and Black has activated his knight. }) 24. g4! Qf6 (24... fxg4 25. Bxg6 Bxc3 26. bxc3 (26. Qxc3 Re7 27. Bg3 gxh3 28. Kh1) 26... Re7 27. Qd3 gxh3 28. Kh1 { both illustrate how vulnerable Black's king has become. }) 25. gxf5 gxf5 26. Ne2! { All I have to do is pile up against the target on f5 and it's game over. } 26... Qg6+ 27. Ng3 Rf8 28. Kh2 Ne8 29. Rg1 Qh7 30. Qc2 { 1-0 White wins. } 1-0