Best and worst of Lc0

[mwyoung]

I have never seen a chess playing engine have such a need to troll an opponent as Lc0.


[pgn][Event "DESKTOP-CORSAIR, 1m/40+1m/40+1m/40"]
[Site "DESKTOP-CORSAIR"]
[Date "2019.02.26"]
[Round "1"]
[White "Lc0 v0.21.0-rc1"]
[Black "Stockfish 260219 64 POPCNT"]
[Result "1-0"]
[ECO "B53"]
[Annotator "0.04;-0.26"]
[PlyCount "391"]
[TimeControl "40/60:40/60:40/60"]

{AMD Ryzen Threadripper 2950X 16-Core Processor 3500 MHz W=8.0 plies; 39kN/s;
63,719 TBAs; Fritz 16.ctg B=30.3 plies; 45,655kN/s; 140,613,901 TBAs; Fritz 16.
ctg} 1. e4 {B 0} c5 {B 0} 2. Nf3 {B 0} d6 {B 0} 3. d4 {B 0} cxd4 {B 0} 4. Qxd4
{B 0} Nc6 {B 0} 5. Bb5 {B 0} Bd7 {B 0} 6. Bxc6 {B 0} Bxc6 {B 0 Both last book
move} 7. Nc3 {0.00/1 5} Nf6 {-0.26/21 2} 8. Bg5 {0.04/8 1} e6 {-0.24/23 1} 9.
O-O-O {0.01/10 1 (Bxf6)} Be7 {-0.33/22 1} 10. Rhe1 {-0.02/10 0 (Bxf6)} O-O {
-0.37/20 2} 11. e5 {0.06/14 0 (a3)} Nd5 {-0.56/21 1 (dxe5)} 12. Bxe7 {0.44/11 1
} Qxe7 {-0.33/27 1} 13. exd6 {0.44/10 1 (Nxd5)} Qxd6 {-0.32/22 1} 14. Ne5 {
0.46/9 0} Rac8 {-0.12/24 3 (Rfd8)} 15. Rd2 {0.98/12 3 (Rd3)} Qc7 {0.31/25 6}
16. Nxc6 {1.16/13 0} bxc6 {0.45/21 1} 17. g3 {1.17/9 0} Qa5 {0.26/24 2} 18. Qe5
{1.25/12 2 (a3)} Rb8 {0.17/22 2 (Rfe8)} 19. Re4 {1.76/10 4} Rfe8 {0.38/29 0}
20. Ra4 {1.64/12 2} Qb6 {0.40/28 0} 21. Ne4 {1.73/12 1 (b3)} Red8 {0.65/24 8
(c5)} 22. b3 {1.99/11 2} h6 {0.53/24 0 (c5)} 23. h4 {2.12/10 2 (Nc3)} Qb7 {
0.76/27 4} 24. Ra5 {2.08/9 0 (g4)} Kh7 {0.45/22 2 (Qb6)} 25. a3 {2.22/10 4
(Nd6)} Qe7 {0.77/23 2} 26. Qd4 {2.11/11 0} a6 {0.82/24 2 (Ra8)} 27. Qc5 {
2.84/9 3} Qb7 {0.84/24 0} 28. Kb2 {2.93/9 3 (f4)} Ra8 {0.78/23 2 (Qc8)} 29. Nd6
{2.94/9 2 (f4)} Qc7 {1.13/25 6} 30. Nc4 {3.22/9 0} h5 {1.26/26 4 (Rdc8)} 31. f4
{3.67/8 3} Kg8 {1.24/27 0 (g6)} 32. Ne5 {4.02/9 2 (Ra4)} Rdc8 {1.45/23 1 (Kh7)}
33. Rd4 {4.11/8 2 (Ra4)} g6 {1.25/21 0 (Qb7)} 34. Rda4 {3.99/9 3 (Raa4)} Nb6 {
1.46/24 1 (Qb7)} 35. Rb4 {3.94/9 2 (Rd4)} Nd5 {1.47/28 2} 36. Rd4 {3.85/10 2
(Rba4)} Kh7 {1.43/23 1 (Qb7)} 37. Rda4 {3.78/8 1 (Rd2)} Nb6 {1.41/22 0 (Qb7)}
38. Rb4 {3.68/9 2} Nd5 {1.46/25 0} 39. Rc4 {3.66/9 2 (Rd4)} Nb6 {1.65/21 0
(Kg8)} 40. Rc3 {3.62/9 2 (Rb4)} Nd5 {1.49/25 1} 41. Rd3 {3.51/9 3 (Rc4)} Kg7 {
1.35/25 1} 42. Ra4 {3.83/11 2 (Rd4)} Ra7 {1.47/27 2 (Qb7)} 43. Rc4 {3.74/11 4
(Ra5)} Qe7 {1.69/30 6 (Nb6)} 44. Qxe7 {5.12/11 4} Nxe7 {1.76/29 0} 45. Rc5 {
5.10/10 2} Kf8 {1.57/27 0 (Rac7)} 46. b4 {5.73/10 5} Ke8 {1.66/31 0 (f6)} 47.
Kb3 {5.29/11 4 (a4)} Rac7 {2.06/26 5} 48. Nc4 {5.20/12 2 (Ka4)} Ra8 {1.88/27 3}
49. Ne5 {5.07/11 5 (Ka4)} Rb8 {1.49/28 3} 50. Nc4 {5.03/11 2 (Ra5)} Nd5 {
1.70/24 1 (Ra8)} 51. c3 {4.83/10 4 (Ne5)} Ra8 {1.46/29 6 (Ke7)} 52. a4 {
5.13/8 4 (Ne5)} Rb8 {1.75/28 2} 53. Ne5 {4.51/9 3 (Ra5)} Rbc8 {1.85/27 1} 54.
c4 {4.51/11 1 (Rd4)} Ne7 {1.48/24 1} 55. Ra5 {4.44/13 0} Ra8 {1.76/25 2 (Ra7)}
56. Kc3 {4.44/13 1} f6 {1.71/27 0} 57. Nf3 {4.38/13 1} Nf5 {1.80/26 0} 58. Nd2
{4.40/12 1} c5 {1.87/30 2 (Rca7)} 59. b5 {5.18/17 2} Rca7 {2.22/30 0} 60. Ne4 {
5.70/18 1 (b6)} axb5 {2.33/24 2} 61. Rxa7 {5.97/19 0} Rxa7 {1.86/28 1} 62. axb5
{5.97/17 0} Ra3+ {2.03/26 1} 63. Kd2 {5.86/17 0} Ra2+ {2.16/28 3} 64. Kc1 {
6.02/17 0} Nd4 {2.08/29 0 (Ra4)} 65. b6 {6.63/15 1} Ra4 {2.08/32 0} 66. b7 {
5.93/15 1} Rxc4+ {2.08/32 0} 67. Kd2 {6.38/16 1} Rc2+ {3.26/34 6} 68. Ke1 {
6.05/17 2} Nc6 {4.05/28 2 (Rc1+)} 69. Rd6 {14.13/11 1} Nb8 {4.15/27 0} 70.
Rxe6+ {14.51/10 0} Kd8 {4.39/26 3 (Kd7)} 71. Rxf6 {14.51/11 0} Rc4 {4.47/23 0}
72. Nd2 {14.92/10 0} Rb4 {4.51/21 0} 73. Rxg6 {14.59/9 0} Rxb7 {4.58/21 0 (Nd7)
} 74. Rh6 {21.82/7 0} Nd7 {4.67/22 1} 75. Rxh5 {22.85/7 0} Ra7 {4.80/23 1 (Rb4)
} 76. Ne4 {27.60/6 0 (Rg5)} Ra2 {4.67/17 0 (Ra3)} 77. Nxc5 {52.06/5 0 (g4)} Nf6
{5.07/18 0} 78. Rg5 {32.99/7 0} Rh2 {6.48/19 1 (Ke7)} 79. Kf1 {44.32/6 0 (h5)}
Ra2 {7.11/21 1 (Ke7)} 80. h5 {44.56/6 0} Ra1+ {7.42/20 1 (Ke7)} 81. Kg2 {
56.12/7 5} Ra2+ {9.11/23 1} 82. Kh3 {57.10/7 4 (Kf3)} Ra1 {10.93/26 14} 83. Re5
{58.13/7 6 (Kg2)} Ng8 {10.16/21 4 (Rh1+)} 84. Kh4 {68.04/7 7 (g4)} Nh6 {
11.54/19 3} 85. Re6 {70.14/7 4} Nf7 {13.39/23 1 (Ra5)} 86. Kg4 {70.35/6 4} Ra8
{17.09/23 5 (Ra5)} 87. Ne4 {68.55/6 3 (Kf5)} Kd7 {18.24/23 2} 88. Rg6 {65.10/7
3 (Nc5+)} Rh8 {10.40/20 1 (Ng5)} 89. Kh4 {71.02/6 3 (Ra6)} Nd8 {11.47/19 2
(Ng5)} 90. g4 {82.28/6 2 (f5)} Ne6 {11.73/19 1 (Re8)} 91. f5 {79.60/6 2} Nf4 {
14.33/22 2 (Nc5)} 92. Rg7+ {69.24/6 2 (Ra6)} Kc6 {12.23/17 0} 93. Kg5 {69.14/6
1 (f6)} Nh3+ {7.88/20 2 (Kd5)} 94. Kf6 {56.11/6 2 (Kh4)} Kb5 {14.72/21 6 (Kd5)}
95. Re7 {77.77/6 1 (Rb7+)} Rg8 {16.19/19 1 (Nf4)} 96. Rg7 {69.46/6 1 (g5)} Rf8+
{14.92/18 2 (Ng5)} 97. Ke6 {73.29/6 1 (Ke7)} Re8+ {14.17/19 3 (Nf4+)} 98. Re7 {
66.02/6 1} Rf8 {15.84/21 2 (Kc6)} 99. Rb7+ {67.54/6 1 (f6)} Kc6 {9.46/15 0}
100. Rg7 {58.13/6 1 (Re7)} Nf4+ {13.60/18 2} 101. Ke5 {60.61/7 0} Nd3+ {
14.22/19 0} 102. Kd4 {66.18/6 0} Rd8+ {15.07/20 1} 103. Ke3 {67.76/6 1} Ne1 {
15.37/21 0 (Re8)} 104. h6 {78.56/5 1} Rh8 {15.87/20 0 (Nd3)} 105. h7 {86.85/5 0
} Kd5 {16.73/20 1 (Nd3)} 106. Ng5 {80.44/5 0 (Rd7+)} Re8+ {28.40/17 1 (Ke5)}
107. Kf2 {81.11/6 0 (Kf4)} Nd3+ {59.08/16 1} 108. Kg3 {72.38/6 0} Nc5 {72.86/
15 0 (Re3+)} 109. Rg8 {88.01/5 0} Re3+ {141.39/16 0 (Nd3)} 110. Kh4 {92.34/5 0
(Kf4)} Re2 {153.13/16 0 (Nd3)} 111. Rd8+ {91.54/4 0} Kc6 {#11/27 0 (Nd7)} 112.
Rg8 {90.41/5 0 (h8Q)} Rh2+ {153.14/14 0 (Nd3)} 113. Nh3 {87.61/5 0} Rd2 {
#14/25 0 (Ne4)} 114. Rg6+ {92.38/4 0 (Rc8+)} Kb5 {153.16/17 0 (Rd6)} 115. Rg8 {
89.43/5 0 (h8Q)} Rd6 {153.17/19 0 (Kc6)} 116. Rg6 {87.60/4 0 (h8Q)} Rd8 {
15.51/10 0 (Rb6)} 117. Rg8 {87.44/4 0} Rd7 {#49/23 0 (Nd7)} 118. h8=Q {84.66/4
0} Rc7 {#12/31 0 (Ka5)} 119. Kg3 {83.47/4 0 (Qb2+)} Ne4+ {15.83/10 0 (Ra7)}
120. Kf3 {81.32/5 0} Nd2+ {#60/23 0 (Ng3)} 121. Ke2 {80.62/6 5} Nc4 {#9/57 0
(Rg7)} 122. Kf2 {80.37/6 4 (Rb8+)} Rc6 {#11/39 1 (Nd2)} 123. Kg3 {80.05/6 4
(Rb8+)} Ra6 {#10/43 3 (Ne5)} 124. Kh4 {82.93/6 4 (Rc8)} Rd6 {#10/35 1 (Ne3)}
125. Kg5 {81.30/6 3 (Nf4)} Kb4 {#10/38 2 (Nd2)} 126. f6 {89.21/6 3 (Rc8)} Ne5 {
#12/24 2 (Ra6)} 127. Kh6 {63.96/6 3 (Rb8+)} Nf7+ {153.18/24 6 (Rd8)} 128. Kg6 {
72.36/7 2 (Kg7)} Ne5+ {#17/25 9 (Nxh8+)} 129. Kf5 {75.79/7 2 (Kh6)} Rd5 {
#10/23 3 (Ka3)} 130. Kf4 {71.78/6 2 (Ke4)} Nd3+ {#10/28 1 (Kc5)} 131. Kg3 {
81.30/6 3 (Ke4)} Nc5 {#10/31 2 (Ne5)} 132. Kh4 {82.49/6 2 (f7)} Rd7 {#9/30 1
(Nb3)} 133. Kg5 {82.23/6 2 (Rc8)} Ne6+ {#12/23 3 (Rc7)} 134. Kf5 {75.96/6 2
(Kh4)} Nd4+ {#13/21 1} 135. Kf4 {77.50/6 1 (Kg6)} Rd6 {139.90/13 2 (Kc3)} 136.
Ke3 {76.31/6 1 (f7)} Nc2+ {#12/22 1 (Kc3)} 137. Kf2 {81.24/6 1 (Kf4)} Rd2+ {
#12/24 1 (Ka3)} 138. Kg3 {83.30/6 1} Rd3+ {#10/34 0} 139. Kh4 {78.90/6 1} Kc4 {
#9/40 0 (Rd4)} 140. Kg5 {84.00/6 1 (Rc8+)} Rd5+ {#11/29 2 (Kb3)} 141. Kh6 {
80.27/6 1 (Kh4)} Kb3 {#11/28 2} 142. Kg6 {79.63/6 1 (f7)} Rd4 {#13/16 1 (Ka4)}
143. Kf5 {82.00/6 1 (Rb8+)} Rb4 {#53/16 2 (Ka4)} 144. Kg5 {82.99/6 1 (f7)} Nd4
{#13/25 1 (Re4)} 145. Kh6 {78.60/6 1 (f7)} Rc4 {#11/19 1 (Nb5)} 146. Kg6 {
75.16/6 1 (f7)} Nf3 {#13/20 2 (Kb4)} 147. Kf5 {79.13/6 1 (Qh5)} Rc5+ {#14/19 2
(Ne1)} 148. Kf4 {76.17/6 1} Ne1 {#10/31 0 (Kc3)} 149. Ke3 {46.91/5 1 (f7)} Re5+
{111.79/15 1} 150. Kf2 {68.55/6 1} Nd3+ {#14/19 1} 151. Kf3 {72.07/6 1 (Kg2)}
Ne1+ {#12/26 0 (Kc2)} 152. Kg3 {70.69/6 1} Re3+ {#10/36 0 (Nd3)} 153. Kf4 {
76.14/6 1 (Kf2)} Ng2+ {#12/24 1 (Nd3+)} 154. Kg5 {69.19/6 1 (Kf5)} Re5+ {
#13/15 0 (Nf4)} 155. Kh6 {67.75/6 1 (Kg6)} Re3 {#10/23 0 (Kb4)} 156. Kg6 {
64.64/6 1 (Rb8+)} Rc3 {#10/31 1 (Nh4+)} 157. Kf5 {76.02/5 0 (Rb8+)} Ne3+ {
#14/19 1 (Re3)} 158. Kf4 {77.10/6 1 (Ke4)} Ng2+ {#13/23 1 (Nc2)} 159. Ke4 {
77.79/6 0 (Kf5)} Rc4+ {153.16/19 0 (Re3+)} 160. Kf3 {74.31/6 1} Ne1+ {#12/30 1
(Rc3+)} 161. Kg3 {75.30/7 4 (Kf2)} Rc3+ {#13/32 1} 162. Kf4 {72.02/7 3 (Kf2)}
Ng2+ {#12/31 4 (Nd3+)} 163. Kg5 {72.40/7 3} Rc5+ {#11/43 0 (Nf4)} 164. Kh6 {
64.11/7 3 (Kg6)} Ne3 {#10/38 1 (Kb4)} 165. g5 {81.15/6 3 (f7)} Nf5+ {#14/20 5
(Kc3)} 166. Kg6 {77.84/7 3} Nd6 {#11/36 0} 167. Kg7 {62.81/6 2 (f7)} Ra5 {
#12/16 5 (Rc7+)} 168. Kh6 {67.90/6 3 (f7)} Nf7+ {#14/24 6 (Rxg5)} 169. Kh5 {
75.56/7 2 (Kg7)} Nxh8 {#14/33 1 (Nxg5)} 170. Rxh8 {94.64/6 2} Ra7 {#13/42 0
(Kc3)} 171. Nf4 {92.09/6 2 (Kg6)} Kc2 {153.21/34 1 (Kb2)} 172. Rd8 {90.27/6 2
(f7)} Kc3 {#31/32 4 (Kc1)} 173. Re8 {88.99/6 2 (Kg6)} Kc4 {#12/26 1 (Kc2)} 174.
Rf8 {87.33/6 2 (g6)} Kb4 {#11/35 1 (Kb5)} 175. Rg8 {84.32/6 1 (f7)} Rh7+ {
#12/34 1 (Ka3)} 176. Kg6 {89.47/6 1} Rh4 {#11/43 0 (Rf7)} 177. Rb8+ {84.78/5 1
(Nd5+)} Kc4 {#10/47 1 (Ka5)} 178. Rf8 {89.47/6 1 (Kf5)} Rxf4 {#13/34 2 (Kb3)}
179. f7 {128.00/1 0} Kd5 {#12/39 0} 180. Rc8 {96.89/5 2 (Rb8)} Ke6 {#11/49 1}
181. f8=Q {128.00/2 1} Rxf8 {#10/55 0} 182. Rxf8 {128.00/1 0} Ke5 {#9/59 0}
183. Kf7 {119.94/6 1 (Kh5)} Kf5 {#8/42 1 (Kd6)} 184. g6 {128.00/2 0} Ke4 {
#7/58 0} 185. g7 {128.00/1 0} Kd3 {#6/81 1} 186. g8=R {128.00/1 3 (g8Q)} Kd4 {
#6/46 1} 187. Ke6 {80.09/5 1} Kd3 {#5/95 3 (Ke3)} 188. Kd5 {82.94/6 1 (Rg3+)}
Kc2 {#4/127 0} 189. Rg2+ {92.15/6 1 (Rf2+)} Kb3 {#3/127 0 (Kb1)} 190. Rb8+ {
111.75/6 1} Ka3 {#2/127 0} 191. Ra2+ {128.00/3 1 (Rb7)} Kxa2 {153.22/1 0} 192.
Kc4 {110.34/7 1 (Rb7)} Ka3 {#4/118 7} 193. Rb6 {101.94/8 1 (Rb5)} Ka2 {#3/100
1 (Ka4)} 194. Kc3 {97.84/8 0} Ka1 {#2/127 0 (Ka3)} 195. Kc2 {105.26/7 0} Ka2 {
#1/127 0} 196. Ra6# {128.00/2 0} 1-0

[/pgn]

[jpqy]

Happens more..check Ipman's example game : https://lichess.org/i0Cxcq3y

Doesn't play Mate move for a long time?
Found on his spreadsheet :

JP.