[Event "St Louis Winter A 2019"] [Site "Saint Louis USA"] [Date "2019.11.10"] [Round "1.4"] [White "Naroditsky, D."] [Black "Erdos, V."] [Result "1/2-1/2"] [ECO "D00"] [WhiteElo "2613"] [BlackElo "2613"] [PlyCount "68"] [EventDate "2019.11.10"] [EventType "tourn"] [EventRounds "9"] [EventCountry "USA"] [EventCategory "16"] [SourceTitle "TWIC1305"] [Source "Mark Crowther"] [SourceDate "2019.11.11"] [SourceVersion "1"] [SourceVersionDate "2019.11.11"] [SourceQuality "2"] {[%evp 0,13,31,13,20,29,60,44,45,38,49,23,16,24,13,17]} 1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bf5 ({Relevant:} 5... Nf6 6. Nd2 Bf5 7. Ngf3 e6 8. Nh4 Bg6 9. Qb3 Qd7 10. Nxg6 hxg6 11. Bb5 Bd6 12. Bxd6 Qxd6 13. Nf3 O-O 14. O-O a6 15. Bxc6 bxc6 16. Ne5 c5 17. Qa3 Rfc8 18. Nd3 Nd7 19. Rfc1 Qb6 20. Qa4 Qb5 21. Qd1 c4 22. Nb4 a5 23. a4 Qb8 24. Nc2 Nf6 25. Na3 Ne4 26. Rab1 Qf4 27. Rc2 Rab8 28. Nb5 Rc6 29. b3 cxb3 30. Rxb3 g5 31. g3 Qf6 32. Qd3 g4 33. c4 Rxc4 34. Rbb2 Rbc8 35. Rxc4 {Shirov,A (2658)-Kovalenko,I (2654) Riga 2019 0-1}) 6. Nd2 e6 7. Qb3 Qd7 8. Ngf3 f6 {Taking control over e5 prevents one of the fundamental ideas of the London system-putting knight on e5} 9. h4 h5 10. Be2 Nh6 {The kingside is cemented over} 11. Nf1 ({Predecessor:} 11. Rd1 a6 12. Qb6 Be7 13. Qc7 Nf7 14. Qxd7+ Kxd7 15. Nb3 b6 16. Bd3 Bg4 17. Be2 Nd6 18. O-O Rhd8 19. Rfe1 Nc4 20. Bxc4 dxc4 21. Nbd2 Na5 22. Re3 Rac8 23. Rde1 Re8 24. Ne4 Bf8 25. Bg3 Nc6 26. Ned2 Ne7 27. Nh2 Bf5 28. Nhf3 Nd5 29. Ne4 Nxe3 30. Rxe3 Bxe4 31. Rxe4 Bd6 32. Bxd6 Kxd6 33. Nd2 Kd5 34. Re3 e5 35. Nf3 exd4 36. Nxd4 Rxe3 37. fxe3 Ke4 38. Kf2 Kd3 39. Nf5 Rc7 {0-1 (39) Al Thebaiti,A (1976) -Salgado Lopez,I (2629) St Petersburg 2018}) 11... Ng4 12. Ne3 Nxe3 13. fxe3 Bd6 {To trade of the dangerous London bishop} 14. O-O Bxf4 15. exf4 O-O-O 16. Qd1 Qd6 {Paying due attention to e5} 17. Qd2 Ne7 {Black is working with the better structure and sends the knight to the kingside} 18. Bd3 {White does the same and trades his passive bishop for the active Bf5} Bxd3 19. Qxd3 Nf5 { and the better knight} 20. Rae1 Rhe8 {Covering the sensive e6-pawn. Black might be able to make progress by getting the knight to e4} 21. Rf2 Re7 { Preparing ..Rde8 There is not much happening in the position and this does not change for the remainder of the game} 22. Qd2 Ng3 23. Qe3 Nf5 (23... Ne4) 24. Qd2 Qd7 25. Qd3 Rde8 26. Kh2 Qd6 {Black seems happy to wait and shuffle around} 27. g3 Kb8 {Usual prophylaxis} 28. Kg2 g6 {Preparing ..e5 perhaps} 29. Rfe2 Rg8 {Possibly aiming for ..g5} 30. Kh3 Qd7 31. Kg2 Qd6 32. Kh3 Qd7 33. Kg2 Nd6 34. b3 Ne4 {The knight is excellently placed but neither side wished to press the issue} 1/2-1/2