[Event "BTCh 2019-20"] [Site "?"] [Date "2020.01.26"] [Round "6.3"] [White "Bihuri, M."] [Black "Yip, M."] [Result "1/2-1/2"] [ECO "A22"] [WhiteElo "1925"] [BlackElo "1973"] [Annotator "Yip"] [PlyCount "86"] [SourceVersionDate "2004.05.16"] [WhiteTeam "H√úSI II"] [BlackTeam "MTK IV"] 1. c4 Nf6 2. Nc3 e5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. d3 Be7 8. O-O O-O 9. a4 a5 10. Nb5 Be6 11. Be3 Nd5 12. Bd2 f6 ({Relevant:} 12... Qd7 13. Rc1 Rfd8 14. Ng5 Bxg5 15. Bxg5 f6 16. Bd2 Nd4 17. e4 Nb6 18. Rxc7 Qe8 19. Nxd4 Rxd4 20. Be3 Rb4 21. Rxb7 Nxa4 22. Rxb4 axb4 23. Qd2 Qb5 24. d4 exd4 25. Qxd4 Rc8 26. Rd1 Qe2 27. Bf1 Qxb2 28. Qd6 Bb3 29. Rd2 Qe5 30. Qxb4 Rb8 31. Bc4+ Kh8 32. Bxb3 Nc3 33. Bf4 Ne2+ 34. Rxe2 Qa1+ 35. Re1 {1-0 (35) Mamedov,R (2660) -Baron,T (2505) Bastia 2011}) 13. Bc3 Qd7 {Routine development gives away all the advantage} ({Predecessor:} 13... Ncb4 {/\..c6 to kick away the annoying knight is correct} 14. Ne1 (14. d4 {The central advance is not possible} e4 {/\..f5 no matter what for example} 15. Nd2 (15. Ne1 f5) 15... f5) (14. Bd2 c6 15. Nc3 Nc7 (15... Qb6) 16. Ne4 Qd7) 14... c6 15. Na3 {0-1 (40) Verdnikov,V (2142)-Efimov,A (2020) Izhevsk 2013} Qc7) 14. e4 Ndb4 {Looks correct but is the wrong plan completely} (14... Nxc3 { Gives no advantage but is correct} 15. bxc3 Bf7 {A prophylactic retreat to avoid d4-d5 fork ideas} (15... Rad8) ({even} 15... Nd8 16. d4 c6 17. Na3 Bxa3 18. Rxa3 Nf7) 16. Qe2 Bc5) 15. d4 {White takes the initiative now} exd4 16. Nbxd4 Bc4 (16... Rad8 17. Nxe6 (17. Qe2 Bg4) 17... Qxe6 18. Qe2 Bc5 $11) 17. Nxc6 Qxc6 18. Nd4 Qb6 (18... Qe8) 19. Nf5 (19. Qg4) 19... Bc5 {Much too optimistic and overlooking the reply completely} (19... Rf7 20. Qg4 Kh8 21. Nxe7 Rxe7) 20. Qg4 {White has a winning attack out of thin air} g6 21. Nh6+ (21. e5 Bxf1 22. Rxf1 fxe5 23. Qc4+ Kh8 24. Bxe5+ Rf6 25. Qf7) 21... Kh8 22. e5 Be6 (22... Bxf1 {Gives a slight edge} 23. Rxf1 (23. exf6 Bxf2+ 24. Kxf1 Nc2 25. f7+ Bd4 26. Bxd4+ Qxd4 (26... Nxd4)) 23... Na2 {The dangerous Bc3 must be removed} 24. Qd7 Nxc3 25. bxc3 fxe5 26. Nf7+ Rxf7 27. Qxf7 Rf8 28. Qd5 Bxf2+ 29. Kh1 Qd6 30. Qxb7 Kg7 31. Qe4 Qe6) 23. Qe2 (23. Qh4 Na2 24. exf6 Nxc3 25. bxc3 Rad8 26. Rae1 Rd2 27. Ng4 Bxg4 28. Qh6 Qxf6 29. Qxd2 Rd8 30. Qb2 b6 ) 23... f5 {Black has an excellent position once the blockade is set up} 24. g4 $5 fxg4 {This only helps the offside Nh6 get back into play. Black cannot afford this helpful gift} (24... c6 {Black can afford this quiet move that reinforces d5 restricts Bg2} 25. Rad1 (25. gxf5 gxf5 {Both sides will have trouble getting rooks to the g<->} 26. Kh1 Rad8 27. f4 Nd5 28. Rf3 (28. Qh5 Ne3) 28... Rd7 29. Raf1 Rg7) 25... Rae8 26. Rd6 Na2 {The key is to eliminate the annoyingly strong Bc3} 27. Rxe6 Nxc3 28. Qc4 {Best} Qb4 { Forcing an ending is best} 29. Qxb4 Ne2+ {A saving intermediate check} 30. Kh1 Bxb4 (30... axb4 31. gxf5 Kg7 32. Rxe8 Rxe8 33. Ng4 gxf5 34. Nf6 Rd8 35. Nh5+ Kf7 36. Bh3 Nd4 37. Rg1 (37. a5) 37... Nf3 38. Rg7+ Ke6 39. Kg2 Nh4+ 40. Kg3 Ng6 41. Rxh7 Rd3+ 42. f3 Kxe5 43. Rxb7 Bd6 44. Rg7 Kd5+ 45. Kf2 Nh4 46. Ke2 Rb3) 31. Rxe8 Rxe8 32. g5 Kg7) 25. Nxg4 Rad8 (25... Nd5) 26. Be4 (26. Rfd1 Rxd1+ 27. Rxd1 Na2 28. Be1 Bxg4 29. Qxg4 Bxf2+ 30. Bxf2 Qxf2+ 31. Kh1 Qxb2 (31... Qe3) 32. e6 Qe5) 26... Nd5 { Centraliing looks nice but is the wrong plan as Black targets the wrong central square} (26... Bd4 {Taking over the centre and blocking the /^a1-h8 diagonal is correct} 27. Rfd1 (27. Rad1 c5) 27... Bxg4 28. Qxg4 Bxc3 29. bxc3 Qxf2+ 30. Kh1 Nc6 31. e6 Rxd1+ 32. Qxd1 (32. Rxd1 Rf4) 32... Re8 33. Bd5 Rd8 34. Qd3 Ne7 35. c4 Qf6 36. Rf1 Nf5) 27. Bxd5 Rxd5 28. Nf6 Rdd8 29. Rad1 {White has escaped the danger and is almost fully mobilized} c6 30. Rxd8 Rxd8 31. Ne4 Be7 {The bishop pair is not effective enough to secure any advantage} 32. Rd1 Rxd1+ 33. Qxd1 Qb3 (33... Kg7 {Is useful to get the king back into play}) 34. Qxb3 Bxb3 35. Bxa5 {Sadly I overlooked this simple capture} Bxa4 {The bishop pair, better structure and queenside majority are still not enough for any advantage due to the active Ne4 and passed e-pawn} 36. Bc3 (36. Nd6 Bb3 37. Nxb7 Bg5 {The active bishops are active enough to compensate for the pawn} 38. Nc5 Bd5 39. Bc3 Kg7 40. b4 Kf7 41. Kf1 Bf4 42. h4 g5 43. hxg5 Bxg5) 36... Kg8 37. Bd4 Bc2 38. Nd6 b5 39. Kg2 Kf8 {Neither side can make any progress} 40. Kg3 Bb3 41. f4 Be6 42. b4 Kg7 43. Bc5 Bd8 { Drawn on my offer} 1/2-1/2
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