Nov-01-08 | | notyetagm: 55 ... ?
 click for larger viewhttp://chessmind.powerblogs.com/pos...: <... Nakamura-Carlsen (Nakamura had very good winning chances almost start to finish, <<<but was fortunate at the end that Carlsen repeated instead of playing the probably winning 55/57...Rf5>>>), > (VAR) 55 ... ♖f3-f5! Δ 56 ... ♖f5-g5
 click for larger viewDoes anyone know for sure whether the maneuvre ... ♖f3-f5! was winning for Black on moves 55 or 57, as Monokroussos suggested might be true? <RYBKA 3 EVAL>? Thanks
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Nov-01-08 | | nimh: 1: Hikaru Nakamura - Magnus Carlsen, Cap d'Agde Cap Agde FRA 2008
 click for larger viewAnalysis by Rybka 3 32-bit:
(-2.28 !) Depth: 15 00:00:14 609kN, tb=96
55...Rf5
(-2.48 !) Depth: 15 00:00:18 753kN, tb=123
55...Rf5 56.b4 Rg5[] 57.Rxg3 Rxg3 58.b5 Rg5 59.Ka4 Rg4+[] 60.Ka3 Nc5 61.a6 Ra4+ 62.Kb2[] Ke6 63.Kc3
(-2.18) Depth: 15 00:00:20 792kN, tb=177
55...Rf5
(-2.38 !) Depth: 16 00:00:25 1019kN, tb=228
55...Rf5
(-2.58 !) Depth: 16 00:00:33 1343kN, tb=301
55...Rf5
(-2.98 !) Depth: 16 00:00:41 1765kN, tb=378
55...Rf5 56.b4 Rg5[] 57.Rxg3 Rxg3 58.b5 Rg5[] 59.Ka4 Rg4+[] 60.Ka3 Nc5[] 61.a6 Ra4+[] 62.Kb2[] Ke6[] 63.Kc3 Ne4+[] 64.Kb3 Ra1[] 65.Nb6 Nd6[] 66.Kb2 Ra5[] 67.Kc3 Ra3+[] 68.Kb4 Ra1[] 69.Na4 Rb1+[] 70.Kc5 Nxb5[]
(-3.52) Depth: 16 00:01:05 2789kN, tb=672
55...Rf5 56.b4 Rg5[] 57.Rxg3 Rxg3 58.b5 Rg5[] 59.Ka4 Rg4+[] 60.Ka3 Nc5[] 61.a6 Ra4+[] 62.Kb2[] Ke6[] 63.Kc3 Ne4+[] 64.Kb3 Ra1[] 65.Nb6 Nd6[] 66.Kb2 Ra5[] 67.Kc3 Ra3+[] 68.Kb4 Ra1[] 69.Na4 Rb1+[] 70.Kc5 Nxb5[]
(-3.52) Depth: 17 00:01:18 3603kN, tb=768
(Varend, 01.11.2008)
1: Hikaru Nakamura - Magnus Carlsen, Cap d'Agde Cap Agde FRA 2008
 click for larger viewAnalysis by Rybka 3 32-bit:
= (0.10) Depth: 15 00:00:02 114kN, tb=6
56...Nd3+
= (0.10) Depth: 16 00:00:04 192kN, tb=14
56...Nd3+
= (0.10) Depth: 17 00:00:09 429kN, tb=30
56...Nd3+
= (0.10) Depth: 18 00:00:15 699kN, tb=58
56...Nd3+
= (0.10) Depth: 19 00:00:30 1343kN, tb=135
56...Nd3+
= (0.10) Depth: 20 00:00:55 2463kN, tb=279
(Varend, 01.11.2008)
1: Hikaru Nakamura - Magnus Carlsen, Cap d'Agde Cap Agde FRA 2008
 click for larger viewAnalysis by Rybka 3 32-bit:
57...Rf5 58.b4[] Rg5[] 59.Rxg3 Rxg3
(-3.42) Depth: 15 00:00:00 4kN
57...Rf5 58.b4[] Rg5[] 59.Rxg3 Rxg3
(-3.42) Depth: 16 00:00:00 8kN
57...Rf5 58.b4[] Rg5[] 59.Rxg3 Rxg3
(-3.42) Depth: 17 00:00:00 13kN
57...Rf5 58.b4[] Rg5[] 59.Rxg3 Rxg3 60.Ka4 Rg4
(-3.42) Depth: 18 00:00:13 958kN, tb=39
57...Rf5 58.b4 Rg5[] 59.Rxg3 Rxg3 60.b5 Ne5+[] 61.Kb4 Rg4+[] 62.Kb3 Ke6[] 63.a6 Rg8[] 64.Nb6 Nd7[] 65.Na4 Kd6[] 66.Kb4 Rg4+[] 67.Ka3 Kc7[] 68.Kb3 Kb8[] 69.Ka3 Ka7 70.Kb3 Rd4 71.Nb2 Ne5 72.Na4 Nd3
(-3.60) Depth: 19 00:01:54 6172kN, tb=1858
57...Rf5 58.b4 Rg5[] 59.Rxg3 Rxg3 60.b5 Ne5+[] 61.Kb4 Rg4+[] 62.Kb3[] Ke6[] 63.a6 Rg8[] 64.Nb6 Nd7[] 65.Na4 Kd6[] 66.Kb4 Rg4+[] 67.Ka3 Kc7[] 68.Kb3 Kb8[] 69.Ka3 Ka7 70.Kb3 Rd4 71.Nb2 Ne5 72.Na4 Nd3
(-3.60) Depth: 20 00:03:06 10448kN, tb=3011 (Varend, 01.11.2008)
So Magnus indeed missed a win several times. |