[Event "USATE"] [Site "https://lichess.org/study/nQB7ckiZ/WbKLHiZG"] [Date "2023.02.19"] [White "Gurevich, Daniel"] [Black "Paragua, Mark"] [Result "0-1"] [Annotator "Zong, Davis"] [Variant "Standard"] [ECO "D00"] [Opening "Queen's Pawn Game: Accelerated London System"] [Source "https://lichess.org/study/nQB7ckiZ/WbKLHiZG"] [Orientation "white"] { Paragua was one of the few board ones who went 6-0 at the event! Here is one of his games. } 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 Bd6 5. Ngf3 O-O 6. Bd3 c5 7. c3 Nc6 8. Bg3 b6 9. Qe2 Bb7 10. e4 { After an interesting sequence of moves from the London, we have arrived at a very sharp position with tactics from both sides. Both kings will soon find themselves unsafe. } 10... Be7 11. e5 Nh5 { With just over 20 games in the database, featuring strong grandmasters on both sides, there is a lot to analyze in this variation! } 12. Ng5 Bxg5 13. Qxh5 g6 14. Qe2 cxd4 15. h4 Bxd2+!? (15... Bh6) (15... dxc3) 16. Qxd2 dxc3 17. bxc3 $132 { The opening has concluded and according to the engine, Black is slightly better due to the extra pawn. However, white has the bishop pair, and the impending attack on Black's king coupled with the weak dark squares and lack of Black's dark-squared bishop make it very double-edged. } 17... f6!? { An interesting choice by the Filipino Grandmaster. The engine is not a big fan, but from a human perspective, it's understandable to try to undermine White's clamp on the dark squares as soon as possible. } (17... d4 { Inserting the pawn push was slightly more precise, opening up the light-squared bishop on b7. } 18. c4 f5 19. exf6 Qxf6) 18. h5 $14 g5 19. exf6 Qxf6 20. h6 Kh8 21. Rh5 Ne5 22. f4?? { In an extremely sharp position, White blunders with a preemptive pawn thrust. } (22. O-O-O! $16 { Castling to safety was the right call. White can later play f2-f4 after his king is out of the center. }) 22... Nxd3+! (22... gxf4?? 23. Bh4!! $18) 23. Qxd3 Ba6!! { A beautiful "only move" by Paragua, activating the bishop with tempo. White can't capture because ...Qf6-xc3+ wins the rook. } (23... gxf4?? 24. Bh4 Qg6 25. Qd4+ Kg8 26. Rg5 $18) 24. Qd2 d4?? { This lets white off the hook. The lines are extremely hard to calculate, but Black does have a winning line. } (24... Rac8!! { Barring White's castling and activating the last piece. } 25. Bf2 Rc4 26. Bd4 e5!! 27. Bxe5 Re4+ 28. Kd1 Rxe5 29. fxe5 Qf1+ { After a series of only moves, White's dark-squared bishop is neutralized and Black's attack crashes through. } 30. Qe1 Qd3+ 31. Kc1 Rf1 $19) 25. Qxd4?? { But this was not the way to go. It's likely that White underestimated Black's 25th move because other lines lead to a drawn opposite colored bishops ending. } (25. O-O-O! { With Black's deadly battery on the f-file, castling was a must. } 25... dxc3 26. Qc2 Rad8 27. fxg5 Qe7 28. Qxc3+ Kg8 29. Rxd8 Rxd8 30. Qg7+ Qxg7 31. hxg7) 25... e5!! { A neat blow that seals the deal. } 26. Qd7 (26. fxe5 Qf1+ 27. Kd2 Qe2+ 28. Kc1 Rf1+ $19) (26. Qxe5 Rae8 $19) 26... Rf7! $19 { With ...e5-xf4 coming and White's king completely open in the center, Gurevich resigned. } 0-1