I did not analyse it, but here on a SF-drunken head, Ne4 seems a lot stronger, with 2 concrete threats:zullil wrote:asmFish sees no progress for Black with 58... Ne6. But perhaps the Fish is blind. Do you believe Ne6 is winning?zullil wrote:I'm sure that the Stockfish team would gladly accept code that raises Elo by improving evaluation of rook and pawn endgame positions.Spliffjiffer wrote:tested with the latest asmfish (05.08.2017), no TB's :
on my pc asmfish didnt refused to take on f3 with 40/2h time-control
[d]8/4k3/R4pp1/6np/7P/p4NP1/5PK1/r7 b - - 0 58
The latest asmFish (with 6-man tables) does switch from Nxf3 to Ne6, though as you point out, it takes some time:Code: Select all
-3.54 58... Ne6 59. Nd2 Nc5 60. Ra5 a2 61. Ra7+ Kd6 62. Ra5 Ke6 63. Ra3 Kd7 64. Ra5 Kc6 65. Kf3 Ne6 66. Ke2 Kb6 67. Nc4+ Kc7 68. Nd2 Nd4+ 69. Kd3 Nc6 70. Ra4 Nb4+ 71. Rxb4 Rd1 72. Ra4 a1=Q 73. Rxa1 Rxa1 74. Ne4 Ra6 75. Ke2 Kd8 76. Nc3 Ra5 77. Kd3 Ra3 78. Kd2 Kd7 79. Nb5 Ra5 80. Nd4 Kd6 81. Kd3 Ra4 82. Nf3 Ra2 83. Ke3 Kd5 84. Ne1 Ra3+ 85. Kf4 Ra4+ 86. Ke3 Ke5 87. Nd3+ Kf5 (depth 43, 0:03:45)
Code: Select all
-2.32 58... Ne6 59. Nd2 a2 60. Ra7+ Kd8 61. Nf1 Nc5 62. Ne3 Nd3 63. Nd5 Ne1+ 64. Kf1 f5 65. Ra8+ Kd7 66. Nc3 Nf3+ 67. Ke2 Re1+ 68. Kxf3 a1=Q 69. Rxa1 Rxa1 70. Nd5 Ra3+ 71. Kg2 Ke6 72. Nf4+ Kf7 73. Nd5 Ra6 74. Nf4 Ra4 75. Kf3 Ra3+ 76. Kg2 Ra2 77. Kf3 Kf6 78. Nd5+ Ke5 79. Nf4 Ra3+ 80. Kg2 Ra6 81. Kg1 Rc6 82. Kg2 Ke4 83. Ne2 Rd6 84. Nf4 Ke5 85. Kf3 Rb6 86. Nh3 Kf6 87. Kg2 Ra6 88. Ng5 Ra1 89. Nh3 Ra3 90. Kh2 Ra5 91. Kg2 Ra7 92. Kh2 Ke5 93. Kg2 Ra4 94. Kf3 Ra1 95. Nf4 Kf6 96. Nd5+ Ke6 97. Nf4+ Kf7 98. Kg2 Re1 99. Kf3 Re4 100. Kg2 Rd4 101. Kf3 Kf6 102. Kg2 Rd2 103. Nh3 Rc2 104. Kf3 Rc3+ 105. Kg2 Rc7 106. Nf4 Rc6 107. Nh3 Rd6 108. Kh2 Rd8 (depth 78, 6:10:40)
- Nc3, followed by a2
- and Ra2, targeting the f2 pawn