[Event "FIDE World Cup 2023"] [Site "Baku"] [Date "2023.08.17"] [Round "6.6"] [White "Praggnanandhaa R"] [Black "Erigaisi Arjun"] [Result "0-1"] [WhiteElo "2707"] [BlackElo "2704"] [Annotator "Lang,JJ"] [Variant "Standard"] [ECO "D37"] [Opening "Queen's Gambit Declined: Barmen Variation"] [Source "https://lichess.org/study/QLPThvQV/xTmuVl1o"] [Orientation "white"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bf4 Bb4 6. e3 c5 7. Be2 Qa5 8. O-O Bxc3 9. bxc3 Ne4 10. Bd3 Nxc3 11. Qc2 dxc4 12. Bxc4 b5 13. Bd3 c4 14. Be4 Nd5 15. a4?! { A reasonable idea in similar positions, but here the queenside pawns are too strong and White is unable to open up the center to exploit Black's uncastled king. } 15... b4 16. Nd2 b3 17. Nxc4 Qb4 18. Qd3 (18. Nd6+ Ke7 19. Qb2 $13) 18... Nxf4! 19. exf4 Ba6! 20. Qd2 Rb8 { It is remarkable that White never had time to capture the a8-rook. } 21. Qxb4 Rxb4 22. Nd6+ Ke7 23. Nb5 b2 24. Rab1 Bxb5 25. axb5 Rxb5 26. Rfe1 Nf6 27. Bc6 Rb6 28. d5 Kd6 { 0-1 Black wins. } { White's position is falling apart, and the connected queenside passed pawns will prove decisive. } 0-1