VivianAndy v. Mahony – GMI Round 2, February 2021

In this game, I made a simple mistake in the opening, found myself defending some intense pressure on the Queenside, defended and then turned the tables, only to miss a win in the endgame.

[Event "Live Chess"]  [Site "Chess.com"]  [Date "2021.02.14"]  [Round "?"]  [White "VivianAndy"]  [Black "mikemahony"]  [Result "1/2-1/2"]  [ECO "A34"]  [WhiteElo "1464"]  [BlackElo "1533"]  [Annotator "Tactical Analysis 4.0 (7s)"]  [PlyCount "106"]  [EventDate "2021.??.??"]   {[%evp 13,106,17,15,-32,0,0,0,11,6,0,19,24,43,9,42,43,44,35,37,27,31,-5,-8,-14,  5,0,0,0,0,0,0,-5,-11,-16,0,-19,-21,-15,-13,-53,-33,-75,-27,-108,-87,-82,-80,  -131,-129,-139,-132,-135,-126,-168,-136,-163,-111,-126,-106,-106,-106,-108,-77,  -104,-103,-109,-104,-118,-117,-120,-117,-117,-117,-114,0,-71,-67,-403,-422,  -695,-642,-674,-504,-534,-346,-583,0,0,0,-1,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 g6 3.  g3 Bg7 4. Bg2 O-O 5. Nf3 d5 6. cxd5 Nxd5 7. O-O c5 8. Nh4 {[%eval -32,19]} (8.  d4 $11 {[%eval 15,15]}) 8... Nxc3 (8... e6 9. d3 (9. Nf3 Nc6 (9... Ne7 10. d3 (  10. Na4 Na6 11. h4 h6 12. d3 $15 {[%eval -33,13] [%wdl 279,369,351]}) 10...  Nbc6 11. Be3 b6 12. d4 $11 {[%eval 7,21] [%wdl 297,420,282]}) (9... Qb6 10. d3  (10. Na4 Qc7 11. d4 cxd4 12. Nxd4 $11 {[%eval -25,19] [%wdl 253,444,301]})  10... Nc6 11. Na4 Qb5 12. Nc3 $11 {[%eval 1,9] [%wdl 119,761,118]}) 10. d3 (10.  Qa4 Bd7 11. Qb3 Rc8 12. Rb1 $17 {[%eval -95,13] [%wdl 226,332,441]}) 10... b6  11. Bg5 Qd7 12. Qd2 $15 {[%eval -40,14] [%wdl 242,437,319]}) (9. b3 Nf4 (9...  Nc6 10. Bb2 (10. Nf3 b6 11. Bb2 Nc7 12. a3 $15 {[%eval -58,12] [%wdl 249,376,  373]}) 10... b6 11. Rb1 Re8 12. Nf3 $15 {[%eval -54,13] [%wdl 245,398,356]}) (  9... b6 10. Bb2 (10. Rb1 Bb7 11. Bb2 Re8 12. Nxd5 $15 {[%eval -60,18] [%wdl  205,483,310]}) 10... Nc6 11. Rb1 Re8 12. Nf3 $15 {[%eval -54,14] [%wdl 244,400,  355]}) 10. gxf4 (10. Be4 Bxc3 11. dxc3 Qxd1 12. Rxd1 $19 {[%eval -423,10]  [%wdl 33,31,935]}) 10... Qxh4 11. Ba3 Na6 12. e3 $15 {[%eval -63,19] [%wdl 247,  370,381]}) (9. a3 Nf4 (9... Nc6 10. d3 (10. Rb1 Qd6 11. Ne4 Qe7 12. d3 $15 {  [%eval -47,14] [%wdl 263,372,363]}) 10... b6 11. Bd2 Bb7 12. Nf3 $15 {[%eval  -36,14] [%wdl 252,422,324]}) (9... Re8 10. Nf3 (10. e4 Nf4 11. gxf4 Qxh4 12. d3  $15 {[%eval -48,19] [%wdl 249,404,346]}) 10... Nc6 11. d3 b6 12. Bd2 $15 {  [%eval -33,13] [%wdl 256,421,321]}) 10. Bf3 (10. gxf4 Qxh4 11. d3 Nc6 12. Bd2  $17 {[%eval -78,16] [%wdl 245,331,422]}) 10... Nd5 11. Ng2 Nc6 12. Ne3 $15 {  [%eval -39,16] [%wdl 259,400,340]}) (9. Rb1 Nc6 (9... Re8 10. a3 (10. d3 Bxc3  11. Bxd5 exd5 12. bxc3 $15 {[%eval -52,14] [%wdl 238,419,342]}) 10... Nc6 11.  Re1 b6 12. b4 $15 {[%eval -45,15] [%wdl 235,442,321]}) (9... b6 10. b4 (10.  Nxd5 exd5 11. b4 cxb4 12. Rxb4 $15 {[%eval -35,17] [%wdl 254,421,323]}) 10...  cxb4 11. Nxd5 exd5 12. Rxb4 $15 {[%eval -32,15] [%wdl 257,421,320]}) 10. a3 (  10. d3 Bxc3 11. Bxd5 exd5 12. bxc3 $15 {[%eval -53,15] [%wdl 235,423,340]})  10... Qd6 11. Ne4 Qe7 12. d3 $15 {[%eval -48,14] [%wdl 259,379,361]}) 9... b6 (  9... Nc6 10. Bd2 (10. Nf3 b6 11. Bg5 Qd7 12. Qd2 $15 {[%eval -40,15] [%wdl 240,  441,318]}) 10... b6 11. a3 Bb7 12. Nf3 $15 {[%eval -37,13] [%wdl 252,421,325]})  (9... Re8 10. Nf3 (10. Bd2 b6 11. Rc1 Nc6 12. a3 $15 {[%eval -36,12] [%wdl 256,  414,329]}) 10... Nc6 11. Bd2 b6 12. a3 $15 {[%eval -32,12] [%wdl 256,423,319]})  10. Nf3 (10. Nxd5 exd5 11. Nf3 Bf5 12. Bg5 $15 {[%eval -66,17] [%wdl 231,402,  365]}) 10... Nc6 11. Bg5 Qd7 12. Qd2 $15 {[%eval -39,14] [%wdl 243,438,318]})  9. dxc3 Qb6 10. Qc2 Nc6 11. Be3 a5 12. Qb3 Ra6 13. Rab1 Bf6 14. Qxb6 Rxb6 15.  Bxc5 Rb5 16. Ba3 Be6 17. b3 Bxc3 18. Rfc1 Nd4 19. Kf1 Bb4 20. Bxb4 Rxb4 21. Rc7  a4 {[%cal Ra4b3]} 22. e3 Nc6 23. Bxc6 bxc6 24. Rxc6 axb3 25. axb3 Bxb3 (25...  g5 $5 26. Ng2 $8 Rfb8 $11) 26. Rbc1 e6 27. f4 {[%eval -75,21]} (27. R6c3 $15 {  [%eval -33,20]}) 27... Bd5 {[%eval -27,22]} (27... Kg7 $17 {[%eval -75,21]})  28. R6c3 {[%eval -108,24]} (28. R6c2 $11 {[%eval -27,22]}) 28... Rb2 29. R3c2  Rfb8 30. Kf2 {[%eval -131,24] [#]} (30. Re2 $142 {[%eval -80,23]}) 30... Be4 $1  $17 {[%cal Re4c2]} 31. Rxb2 Rxb2+ {[%mdl 4096] Endgame KRB-KRN} 32. Kg1 h6 {  Strongly threatening ...g5.} 33. Rf1 {[%eval -168,26]} (33. Rc4 $17 {[%eval  -126,22] keeps fighting.} Bd5 34. Rd4) 33... Re2 $19 34. Nf3 Rxe3 {[%eval -111,  25]} (34... Kg7 $19 {[%eval -163,21]} 35. Rf2 (35. Nh4 Rxe3 36. Kf2 Ra3 37. Re1  Ra2+ $19 {[%eval -321,13] [%wdl 50,101,848]}) 35... Rxe3 36. Ne5 f6 37. Nd7 g5  $19 {[%eval -199,19] [%wdl 114,295,589]}) (34... Bd5 35. Rf2 (35. Nh4 Rxe3 (  35... g5 36. Nf3 f6 37. Rf2 Rxe3 $19 {[%eval -246,14] [%wdl 81,186,732]}) 36.  Rd1 Re2 37. h3 g5 $19 {[%eval -291,15] [%wdl 59,124,815]}) (35. Ne1 f6 (35...  Rxe3 36. Nc2 Rc3 37. Nd4 Kg7 $19 {[%eval -226,14] [%wdl 94,233,671]}) 36. Nf3  Kf7 37. Rf2 Rxe3 $19 {[%eval -230,19] [%wdl 92,218,689]}) 35... Rxe3 36. Ne5  Rc3 37. Rf1 Kg7 $17 {[%eval -123,20] [%wdl 132,542,324]}) (34... f6 35. Rf2  Rxe3 (35... Bxf3 36. Rxf3 Kf7 37. h4 Ke7 $11 {[%eval -7,10] [%wdl 37,923,39]})  36. Nd4 e5 37. fxe5 fxe5 $15 {[%eval -66,15] [%wdl 105,727,166]}) 35. Ne5 $17 (  35. Re1 Rxe1+ (35... Rxf3 36. Rxe4 Rd3 37. Re2 g5 $15 {[%eval -49,14] [%wdl 75,  818,106]}) 36. Nxe1 g5 37. Kf2 Kg7 $17 {[%eval -153,23] [%wdl 129,457,412]})  35... Re2 {( -> ...Rg2+)} (35... Kg7 36. Ra1 g5 37. Ra7 Bg6 $15 {[%eval -63,18]  [%wdl 92,763,143]}) (35... Rb3 36. Rc1 Rb7 37. h4 Kg7 $15 {[%eval -62,13]  [%wdl 100,744,154]}) 36. Rf2 Rxf2 (36... Re1+ {is more complex.} 37. Rf1 Rxf1+  38. Kxf1 f6 39. Ng4 Kg7) 37. Kxf2 {KB-KN} h5 (37... g5 $15 {[%eval -52,11]  [%wdl 83,797,119]}) 38. Nd7 {Threatens to win with Nf6+.} Kg7 39. h3 Bf5 40.  Kg2 f6 41. Nb6 e5 42. fxe5 fxe5 43. Nc4 e4 {[%eval 0,29]} ({Better is} 43...  Kf6 $17 {[%eval -114,25] aiming for ...Ke6.} 44. h4 Ke6) 44. Ne3 {[%eval -71,  27]} (44. Nd6 $1 $11 {[%eval 0,29]}) 44... Kf6 45. g4 $2 {[%eval -403,28][%mdl  8192]} ({White should play} 45. h4 $15 {[%eval -67,31]}) 45... hxg4 $19 46.  hxg4 Be6 47. Kg3 {intending Kf4.} Kg5 48. Kh3 Kf4 49. Ng2+ Kf3 $2 {[%eval -1,  25]} (49... Ke5 $19 {[%eval -583,32]} 50. Kh4 (50. Ne1 g5 51. Kg3 Kd4 52. Kf2  e3+ $19 {[%eval -335,15] [%wdl 49,53,896]}) (50. Kg3 g5 51. Ne3 Kd4 52. Kf2 Kd3  $19 {[%eval -294,15] [%wdl 61,71,866]}) 50... Bf7 51. Kg3 g5 52. Ne3 Be6 $19 {  [%eval -267,17] [%wdl 74,97,828]}) 50. Nh4+ $11 {The position is equal.} Kf2  51. Nxg6 e3 52. Nf4 e2 {[#]} 53. Nxe2 $1 {[%mdl 512]} Bxg4+ {Weighted Error  Value: White=0.31/Black=0.31} (53... Kxe2 54. Kh4) 1/2-1/2

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