LC0 on the WAC test suite, bad results

[Vinvin]

I ran LCzero, v125 and v188 through the well known WACNEW test suite.
300 tactical positions fairly easy for classical engines.
In 2003, Movei solved 275 on 300 in less than 1 second source : https://www.stmintz.com/ccc/index.php?id=289623

But for LC0, it's another story !
Only 130 positions solved for v125 and 124 solved for v188. Yes, it solves less now than 2 weeks ago !
Conditions : 10 seconds per position (speed around 700 nodes/sec)

Code: Select all

     Solution               v125                          v188
---------------------------------------------------------------------
  1) Qg3-g6             Nf6-h5                       Nf6-h5             
  2) .. Rb3xb2          c4-c3                        c4-c3              
  3) Re3-g3             Re3-g3  * 0 Sec              Re3-g3  * 0 Sec    
  4) Qh6xh7             Qh6-e3                       Qh6-e3             
  5) .. Qc6-c4          Qc6xd6                       Qc6xd6             
  6) Rb6-b7             Rb6-b7  * 0 Sec              Rb6-b7  * 0 Sec    
  7) .. Ng4-e3          Ng4xe5                       Ng4-e3  * 0 Sec    
  8) Re7-f7             Re7-f7  * 0 Sec              Re7-f7  * 0 Sec    
  9) .. Bd6-h2          Bd6-h2  * 0 Sec              Bd6-h2  * 0 Sec    
 10) Rh4xh7             Qg6-h5                       Rh4xh7  * 0 Sec    
 11) Bf3xc6             Bb6-d4                       Bb6-d4             
 12) .. Qg4xf3          Qg4-h3                       Qg4xf3  * 1 Sec    
 13) Qf1xf8             Bg2-f3                       Qf1-g1             
 14) Qh3xh7             b3-b4                        b3-b4              
 15) Rb8xb7             Rc1-c3                       Rb8-g8             
 16) Ne2-c3             Ne2-c3  * 0 Sec              Ne2-c3  * 0 Sec    
 17) Nc4-e5             Nc4-e5  * 0 Sec              Nc4-e5  * 0 Sec    
 18) Ra8-h8             Ra8-h8  * 1 Sec              Ra8-h8  * 1 Sec    
 19) c5-c6              c5-c6   * 0 Sec              c5-c6   * 1 Sec    
 20) .. Bd7-b5          Bd7-b5  * 9 Sec              Bd7-e6             
 21) Qd2-h6             Qd2-h6  * 0 Sec              Re1-d1             
 22) Bc4-a2, Ng5xf7     Qd1-h5                       Bc4-a2  * 0 Sec    
 23) g2-g4              g2-g4   * 1 Sec              g2-g4   * 3 Sec    
 24) .. Bg7-d4          Qe7-f6                       Bg7-d4  * 0 Sec    
 25) .. Qg4-h4          Qg4-h4  * 0 Sec              Qg4-h4  * 0 Sec    
 26) .. Bd7-f5          Bd7-f5  * 1 Sec              Bd7-f5  * 0 Sec    
 27) Qa3-f8             Rf1xf2                       Rf1xf2             
 28) .. Qb4-e1          Qb4-e1  * 0 Sec              Qb4-e1  * 0 Sec    
 29) c5-c6              c5-c6   * 0 Sec              c5-c6   * 0 Sec    
 30) Ne4xd6             Ne4xd6  * 5 Sec              Qc1-c3             
 31) Qb7xa8, d5-d6, d5xe6, g2-g3  d5xe6   * 0 Sec    d5xe6   * 0 Sec    
 32) Qd1-d8             Qd1-d2                       h2-h3              
 33) Qe4-e5, Qe4-f4     Qe4-e5  * 0 Sec              Rc1-c5             
 34) .. Bd4-g1          Bd4-g1  * 0 Sec              Bd4-g1  * 3 Sec    
 35) Rh4xh7             Qd1-c1                       Qd1-c1             
 36) .. Re7-e1          Qd6xd4                       Qd6xd4             
 37) .. Nc6xd4          Nc6xd4  * 2 Sec              Nc6xd4  * 0 Sec    
 38) Qc3-d3, Rd2-d8     Qc3-d3  * 0 Sec              Qc3-d3  * 0 Sec    
 39) Nc3-a4             Nc3-a4  * 0 Sec              Nc3-a4  * 0 Sec    
 40) .. Rd8-c8          Rd8-c8  * 0 Sec              Rd8-c8  * 0 Sec    
 41) Kb5-a5, Kb5-c5, b6-b7  Kb5-a5  * 3 Sec          Kb5-a5  * 3 Sec    
 42) Bb4-a5             Bb4-a5  * 0 Sec              Bb4-a5  * 0 Sec    
 43) Ba3-e7, Qd5xa8     Ba3-d6                       Ba3-b2             
 44) .. d5xc4           d5xc4   * 0 Sec              Qb7-b5             
 45) .. Qf1xa1          Qf1xa1  * 0 Sec              Qf1xa1  * 0 Sec    
 46) Nc3-b5             Nc3-b5  * 1 Sec              Nc3-b5  * 0 Sec    
 47) .. Nc6xd4          Nc6xd4  * 0 Sec              Nc6xd4  * 0 Sec    
 48) .. Rb8-b4          Rb8-b4  * 0 Sec              Rb8-b4  * 0 Sec    
 49) Qh5xh7             Qh5-h6                       Qh5-h6             
 50) Rb7xb6             Rb7xb6  * 2 Sec              Re2xc2             
 51) Rf4-g4             Rf4-g4  * 0 Sec              Rf4-g4  * 0 Sec    
 52) Re1-e7, c2-c4      Re1-e7  * 0 Sec              Nd5-b4             
 53) .. Re3-e1          g7-g5                        g7-g5              
 54) .. Qh5-h1          Rf8-g8                       Rf8-g8             
 55) Qd4xg7             c2-c3                        Rf4-f2             
 56) .. Bc5xf2          Bc5xf2  * 0 Sec              Bc5xf2  * 2 Sec    
 57) Rf3-f8             Rf3-f8  * 0 Sec              Rf3-f8  * 0 Sec    
 58) Qd3-d1             Qd3-d2                       Qd3-d1  * 0 Sec    
 59) Nc3-d5             Nc3-d5  * 1 Sec              Nc3-d5  * 0 Sec    
 60) Qh3-h8             Qh3-h8  * 0 Sec              Qh3-h7             
 61) Qf3-f7             Qf3-g4                       Qf3-g2             
 62) .. Rg6xg3          Rg6xg3  * 0 Sec              Rg6xg3  * 0 Sec    
 63) Ne5xf7             h2-h4                        g2-g4              
 64) g2-g4              Qe3-d4                       g2-g4   * 0 Sec    
 65) Nd5-e7             Nd5-e7  * 2 Sec              Nd5-e7  * 0 Sec    
 66) .. Qc7xe5          Qc7xe5  * 1 Sec              Rg8-g4             
 67) Re5xd5             Qd1-b3                       Qd1-b3             
 68) Qe2xe3             Qe2-c4                       Qe2-c4             
 69) f2-f3, h2-h3       h2-h3   * 0 Sec              h2-h3   * 0 Sec    
 70) .. Nb4-a2          Nb4-a2  * 0 Sec              Qd7xb5             
 71) Nb5xa7             Nb5xa7  * 5 Sec              Nb5xa7  * 1 Sec    
 72) e5-e6              Ba3-d6                       e5-e6   * 2 Sec    
 73) Qe2-d2             Nc3-d5                       Nc3-d5             
 74) .. Qf4-f1          Qf4xe4                       b7-b5              
 75) .. Qd7-d6          c7-c5                        Qd7-d6  * 1 Sec    
 76) Bg5xf6             Bg5xf6  * 0 Sec              Bg5xf6  * 0 Sec    
 77) .. Nf5-g3          Nd4-e6                       Nf5-g3  * 0 Sec    
 78) Ne4-g5             Ne4-g5  * 0 Sec              Ne4-g5  * 0 Sec    
 79) .. Qh3xh2          O-O-O                        O-O-O              
 80) Rd1-a1             Kg1-h1                       Kg1-h1             
 81) .. Be7-d6          Bb7-e4                       Be7-d6  * 1 Sec    
 82) Be4-h7             Rf1-e1                       Rf1-e1             
 83) Qd4xd7             Qd4xd7  * 0 Sec              Qd4-e4             
 84) Qd5-g8             Ng5xe4                       Ng5xe4             
 85) Nc5-a6             Nc5-a6  * 6 Sec              Qa3-e3             
 86) .. Nf6-g4          Nf6-g4  * 4 Sec              Nf6-g4  * 0 Sec    
 87) .. Re6xe5          c5xd4                        c5xd4              
 88) .. Rg6xg2          Rg6-g5                       Rg6xg2  * 0 Sec    
 89) .. g7-g5           g7-g5   * 5 Sec              g7-g5   * 0 Sec    
 90) Nf5xg7             Nf5xg7  * 1 Sec              Nf5xg7  * 1 Sec    
 91) .. Bb3-e6          Qc8-d7                       Qc8-d7             
 92) .. Be6xg4          Ra8-c8                       Be6-c4             
 93) Bc1-h6             Qg7xf6                       Qg7xf6             
 94) .. e5-e4           e5-e4   * 1 Sec              e5-e4   * 0 Sec    
 95) Nf6-g4             Nf6-g4  * 0 Sec              Nf6-g4  * 0 Sec    
 96) Qh4-d8, b2-b3      Qh4-d8  * 0 Sec              b2-b3   * 0 Sec    
 97) Qg2-a8             Qg2-a8  * 0 Sec              Qg2-g4             
 98) .. Nc5xe4          Qe5-d4                       Qe5-f4             
 99) Re5-h5             Re5-h5  * 0 Sec              Re5-h5  * 0 Sec    
100) Bd2-e3, b5-b6      Bd2-e3  * 0 Sec              Bd2-e3  * 7 Sec    
101) .. Bd4-c3          Bd4-c3  * 2 Sec              a7-a5              
102) Qc8xf8             Rc7-f7                       Bd3-e4             
103) Qh6xg6             Rg1xg6                       Rg1xg6             
104) Qe2xh5             Qe2xh5  * 6 Sec              Qe2xh5  * 9 Sec    
105) .. Bd6xg3, Qh5xh4  Qh5xh4  * 1 Sec              Bd6xg3  * 0 Sec    
106) .. Ne4-f2          c7-c5                        c7-c5              
107) Nd4-b5             Nd4-b5  * 0 Sec              Nd4-b5  * 0 Sec    
108) Qc5-e5             Qc5-e5  * 6 Sec              Qc5-e5  * 1 Sec    
109) .. c4-c3           c4-c3   * 0 Sec              c4-c3   * 0 Sec    
110) .. Ba7-e3          Rd8-e8                       Ba7-e3  * 0 Sec    
111) .. Qg1-f1          Qg1-d1                       Qg1-f1  * 4 Sec    
112) Re1xe6             Re1xe6  * 0 Sec              Re1xe6  * 3 Sec    
113) .. Qd8xf6          Qd8xf6  * 6 Sec              Qd8xf6  * 0 Sec    
114) Bd3xh7             Bd3xh7  * 1 Sec              Qc2-f2             
115) Ne8-d6             Ne8-d6  * 0 Sec              Ne8-d6  * 0 Sec    
116) .. Rd8-d2          Qh4-f4                       Qh4-f4             
117) .. Nd6-e4          Qa7-e7                       Nd6-e4  * 0 Sec    
118) Rf4-h4             Bd3-c4                       Bd3-c4             
119) .. Qd8xd3          Ne4-f2                       Ne4-f2             
120) Rh1-g1, g5-g6      Rh1-g1  * 1 Sec              g5-g6   * 0 Sec    
121) .. Bc6xf3          e5-e4                        e5-e4              
122) .. Rd1xf1          Rd1xf1  * 6 Sec              Nb6-d7             
123) .. Bb7xd5, Re7-c7, Re7-e6  Re7-c7  * 2 Sec      Re7-c7  * 2 Sec    
124) .. g4-g3           g4-g3   * 0 Sec              g4-g3   * 0 Sec    
125) .. Bb6xd4          Bc8-f5                       Nd5-e3             
126) Rf6xc6             Qb7-f7                       Rf6xc6  * 0 Sec    
127) Rb2xb7             c3-c4                        Qe2-d3             
128) Qf7-g6             Qf7-g6  * 0 Sec              Qf7-g6  * 0 Sec    
129) .. Bb7-f3          Bb7-e4                       Bb7-f3  * 0 Sec    
130) .. Qg7-h6, Qg7-h8  Qg7-h6  * 0 Sec              Qg7-h6  * 0 Sec    
131) Re1-e8             Bd4-b2                       Bd4-b2             
132) .. Re5-e1          Qh3-h5                       Qh3-h5             
133) Bg3-h4             Bg3-h4  * 6 Sec              Rf1-e1             
134) .. Rd8-d1          Kg8-g7                       Kg8-h8             
135) .. Ne6-d4          Ne6-d4  * 0 Sec              Ne6-d4  * 0 Sec    
136) Rc1-c8             Ne6xd4                       Qg6xf5             
137) Rd1-d7             Ra1-a7                       Ra1-a7             
138) h4-h5              d5-d6                        Qd3-e3             
139) Ne4-f6             Ne4-f6  * 0 Sec              c2-c4              
140) Be5-c7, Rc3-c7     Be5-c7  * 2 Sec              Rc3-c7  * 1 Sec    
141) Qc1xf4             Kg2-f1                       Rh4xf4             
142) Re1-e8, f5-f6      Nc4-d2                       Nc4-e3             
143) Rg6xh6             Rg6xh6  * 1 Sec              Rg6xh6  * 0 Sec    
144) .. d4-d3           d4-d3   * 0 Sec              d4-d3   * 0 Sec    
145) Re1-e8             Qd4-h4                       Rf1-f3             
146) Bf5-c8, Bf5-d3, Bf5-h3  Bf5-d3  * 0 Sec         Bf5-d3  * 0 Sec    
147) .. Nf6xg4          h7-h5                        Nf6xg4  * 0 Sec    
148) Rg1xg7             Rg1-g5                       Ka1-b2             
149) .. Be4xg2          Be4xg2  * 1 Sec              Kg8-f7             
150) .. Bd6-a3, Bd6-e5, Bd6-f8, e4-e3  e4-e3 * 1 Sec Qb2xe2             
151) Na4-c3             Na4-c3  * 0 Sec              Nc4-d6             
152) Nc3-e4             Nc3-e4  * 0 Sec              Nc3-e4  * 0 Sec    
153) .. Nb5xd4          h7-h6                        h7-h6              
154) Qf2xf7             Qf2xf7  * 0 Sec              Qf2-e3             
155) d5-d6              d5-d6   * 1 Sec              d5-d6   * 0 Sec    
156) Qh3xh6             Qh3xh6  * 0 Sec              Qh3-f3             
157) Nd5-e7             Qg3xe5                       Qg3xe5             
158) Re7xg7             Qf5-e6                       Qf5-e6             
159) Ng5-e6             Bb2xe5                       Bb2xe5             
160) Qg4xd7             Nd4-e6                       Nd4-e6             
161) Qh4xd8             Nd6-e8                       Nd6-e8             
162) Bc4-d5             Bc4-d5  * 0 Sec              Bc4-d5  * 0 Sec    
163) .. Qf3-g2          c6xd5                        c6-c5              
164) Rc2xc4             Rc2-d2                       Rc2-d2             
165) Re3-e2             Qd2xf2                       Qd2xf2             
166) .. d5-d4           d5-d4   * 0 Sec              d5-d4   * 0 Sec    
167) .. Rf2xg2          Rf2-f1                       Rf2-f1             
168) .. Qd7-d2          O-O-O                        O-O-O              
169) .. Bg7-h6          Bg7-f6                       Bg7-f6             
170) Qa2xc4             Rg7-f7                       Qa2xc4  * 7 Sec    
171) Be3-h6             Be3-h6  * 5 Sec              h4-h5              
172) .. Qe5-e1          Rf8-f5                       Rf8-f7             
173) Qe3-h6             Qe3-h6  * 0 Sec              Qe3-h6  * 0 Sec    
174) .. Nf4xg2          Rc8-c3                       g7-g5              
175) Nf4-h5             Nf4-h5  * 0 Sec              Qd3-b3             
176) .. Rh8xh2          Bc8-h3                       Bc8-h3             
177) .. Qe7-a3          Nb6-c4                       Nb6-c4             
178) Nf4xe6             Nf4xe6  * 1 Sec              Qe4xh7             
179) .. Qf2-g1          Bc8-g4                       Bc8-g4             
180) .. Nf6xd5          Nf6xd5  * 5 Sec              Nf6xd5  * 0 Sec    
181) .. Nf6-g4          Qh3xf1                       Nf6-g4  * 3 Sec    
182) Qd1-h5             Qd1-h5  * 4 Sec              h2-h4              
183) Bg5-f6             f2-f4                        Rc1-c5             
184) Qf6-e7             Nd5xb4                       Nd5xb4             
185) Qh5xh7             Nh4-g6                       Nh4-g6             
186) Bh6-f8             Bh6-f4                       Bh6-g5             
187) .. Nf4-h3          Qf5xe4                       Qf5xe4             
188) Qf6-g7             Rd1-d7                       Qf6-f3             
189) Re7-e8             Re4-e2                       a2-a4              
190) .. Bd7-h3          Bd7-h3  * 0 Sec              Bd7-g4             
191) Qe2-c4             Re8xc8                       Re8xc8             
192) .. Nb4-d3          Nb4-d3  * 0 Sec              Nb4-d3  * 0 Sec    
193) .. Qb3xe3          Qb3-d5                       Qb3-d5             
194) Nf5-h6             f2-f4                        f2-f4              
195) g2-g3              g2-g3   * 0 Sec              g2-g3   * 0 Sec    
196) .. Nc6-b4          Rb8-f8                       Rb8-b6             
197) .. Qf2-f1          Qf2-f1  * 0 Sec              Qf2-f1  * 0 Sec    
198) .. Rd8-d3          Nf4-e2                       Nf4-e2             
199) Bb5xc6, Rc1-d1, Rf1-d1  Rf1-d1  * 7 Sec         -d1  Rf1-d1  * 0 Se
200) Bb2xf6             Bb2xf6  * 1 Sec              Bb2xf6  * 0 Sec    
201) Ra1-a7             Ra1-a7  * 0 Sec              Ra1-a7  * 1 Sec    
202) .. Rc2xa2          Rc2-c1                       Rc2xa2  * 1 Sec    
203) Qg5-h6             Qg5-g4                       Qg5-g4             
204) Re1xe5             Nd5-b6                       Nd5-f6             
205) Qd2xg5             Be2-d3                       Be2-f3             
206) .. Rd6-c6          Rd6-c6  * 0 Sec              Rd6-c6  * 0 Sec    
207) Qg4xg7             Ng1-f3                       Ng1-f3             
208) Bh5-f7             Qf5-e6                       Qf5-e6             
209) Re1xe5             a4xb5                        a4xb5              
210) Rd1-h1             Rd1-h1  * 1 Sec              Rd1-h1  * 1 Sec    
211) Qh5xf7             Ng4-h6                       Ng4-h6             
212) Qh8xg7             Qh8-h5                       Qh8-h5             
213) Rh5xh7             Rg1xg7                       Rh5xh7  * 2 Sec    
214) Ne4-g5             Qe2-g4                       Qe2-g4             
215) Qd3-h7             Re1xc1                       Re1xc1             
216) Ne5xf7, a2-a4      Ne5xf7  * 0 Sec              Ne5xf7  * 0 Sec    
217) Qd4-d7             Ne4-g3                       Ne4-g3             
218) Bg5-h6             Qg4-f3                       Qg4-f3             
219) .. Qf7-f1          Bc6xe4                       Bc6-b7             
220) .. Qe2xf1          Ne4-f6                       Ne4-f6             
221) Rd1-d8             Ng3-h5                       Ng3-h5             
222) Bh4-f6             b2xa3                        b2xa3              
223) Nc3xe4             Bf4-e5                       a2-a3              
224) .. Rd6-h6, e5-e4   Rd6-h6  * 0 Sec              Rd6-h6  * 0 Sec    
225) .. Qe7-h4          Qe7-c7                       Qe7-f7             
226) Ne5-f7             Rd1-d8                       Rd1-d8             
227) .. d6-d5           Nc6-a5                       a7-a5              
228) Bd3xe4             Bd3xe4  * 5 Sec              Qd1-e2             
229) .. Rh5xh4, b5-b4   Ke4-d5                       Rh5-h7             
230) .. Rb7-b4          Kc6-b5                       Kc6-b5             
231) Bc1-g5             Rd1xd7                       Rd1xd7             
232) Qa6-b5, Rb8xe8     Qa6-b7                       Qa6-a7             
233) .. Nd4-b3          Rf8-b8                       Nd4-f3             
234) Rh3-b3             Rh3-c3                       Rh3-c3             
235) Qe6-e4, Qe6xf7, Re7xf7  Qe6-e4  * 3 Sec         Qe6-e4  * 6 Sec    
236) .. Rc3-c1          Bg2-d5                       Qg3xe1             
237) .. Rc2-c1          Rc2-c1  * 3 Sec              Rc2-c5             
238) Bg2xb7             Rc5-b5                       Rc5-b5             
239) .. Qf2-f1          Qf2-f1  * 0 Sec              Qf2-f1  * 0 Sec    
240) Qc2xc6             Ng5xf7                       Ng5xf7             
241) Qh3xh7             Ne5xf7                       Ne5-g4             
242) Rd1xd7             h2-h4                        h2-h3              
243) Qf2-e2             Qf2-d2                       h2-h3              
244) Qe3xc5             Rd1xd5                       Rd1xd5             
245) Qd3xg6             Bd4xf6                       Bd4xf6             
246) Qg4-h5             e4-e5                        f2-f4              
247) Rb1xb5             Be7-g5                       Qd6-c5             
248) .. Qd6-c5          Qd6-c5  * 3 Sec              Qd6-c5  * 0 Sec    
249) c4-c5, d4-d5       d4-d5   * 0 Sec              d4-d5   * 2 Sec    
250) Re3-e8             Re3-e1                       Re3-e1             
251) Qd4-e5, Qd4-f4     Qd4-e5  * 0 Sec              Qd4-f4  * 0 Sec    
252) .. Bc8-g4, Re8-e2, Bc8-g4  Nf6xd5               Bc8-g4  * 5 Sec    
253) Qe3-e8             c6-c7                        c6-c7              
254) .. Nf4xh3          Rg4-h4                       Rg4-h4             
255) Rf6xg6             Rf6xg6  * 0 Sec              Rf6xg6  * 0 Sec    
256) Nd4-f5             Qd1-g4                       Qd1-g4             
257) Rd1xd4             Re1-e3                       Re1-e3             
258) Bh5xg6             Qh4-g4                       Qh4-g4             
259) Qd1-h5             Qd1-h5  * 0 Sec              Qd1-h5  * 0 Sec    
260) Qd5-e6             Nc7-a6                       Nc7-a6             
261) .. Nf3-d4          Ra8-f8                       Qg3xg2             
262) .. Rg6-h6          Rg6-h6  * 0 Sec              Rg6-h6  * 3 Sec    
263) Qf7-g8             Qf7-h5                       Qf7-h5             
264) .. Qe7-e5, Ra8-b8  Qe7-f6                       Qe7-e5  * 0 Sec    
265) e5xf6              e5xf6   * 0 Sec              e5xf6   * 0 Sec    
266) .. Rh8xh2          Bf2-g3                       Bf2-g3             
267) Nd5-c7             a2-a3                        a2-a3              
268) Re2-e8             Re2-e3                       Re2-e3             
269) a3xb4              O-O                          O-O                
270) Qd4-g4             Re2xe8                       Re2xe8             
271) Re6-d6             Re6-d6  * 0 Sec              Re6-d6  * 0 Sec    
272) Be3xc5             Be3xc5  * 3 Sec              Be3xc5  * 0 Sec    
273) .. Ne4-g3, g4-g3   g4-g3   * 0 Sec              g4-g3   * 0 Sec    
274) Rg6-b6, Rg6-g5     Rg6-g5  * 0 Sec              Rg6-g4             
275) .. Nd7-c5, Nf4xg2, b7-b5  b7-b5   * 0 Sec       b7-b5   * 0 Sec    
276) Qd1-d5             Qd1-d5  * 0 Sec              Qd1-d5  * 0 Sec    
277) .. Rg8-g3, Rg8xg2  Ba6xd3                       Ba6xd3             
278) Bc4-f7             Bc4-f7  * 0 Sec              Bc4-f7  * 1 Sec    
279) Ne3xf5, Rb3-c3     Rb3-c3  * 0 Sec              Rb3-c3  * 0 Sec    
280) .. Bf8xa3          Qc2xe2                       Bf8xa3  * 1 Sec    
281) Rc7xh7             Rc7-c2                       Rc7-c2             
282) Rh1-h8             Rh1-h8  * 9 Sec              Rh1-h8  * 1 Sec    
283) Nh3-g5             Nh3-g5  * 0 Sec              Nh3-g5  * 1 Sec    
284) Nd4-f5             Qd2-f2                       Qd2-f2             
285) Qg2xg7             Ra5-a3                       Ra5-a3             
286) .. Rd8xd5          Rd8xd5  * 0 Sec              Rd8xd5  * 0 Sec    
287) Qd1-g4, Qd1-h5     Bf7-c4                       Bf7-c4             
288) Nh5-f6             Nh5-g3                       Nh5-g3             
289) .. Qe6-e5          Qe6-h3                       Qe6-h3             
290) .. Nf4-e2          Nf4-e6                       Nf4-e6             
291) h2-h3              Rc5-c3                       Kg1-h1             
292) d5-d6              d5-d6   * 0 Sec              d5-d6   * 0 Sec    
293) Nf3-g5             Ra1-b1                       e2-e3              
294) Bd6-f8, Nd4-f5, Qg4-f4  Qg4-f4  * 0 Sec         Qg4-f4  * 0 Sec    
295) Rd1xd5             Nf4xd5                       Nf4xd5             
296) .. Rd8-d4, Rd8-f8  Rd8-d6                       Rd8-d6             
297) .. Bc6xg2, Bd6xh2  Rf8-e8                       Rf8-e8             
298) Qd8-h8             Qd8-c7                       Qd8-b8             
299) Nc5-a4             Nc5-a4  * 2 Sec              Nb6-d5             
300) g5-g6              Rd7-a7                       g5-g6   * 0 Sec 

[jkiliani]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

[Vinvin]

the 300 WACNEW positions from here : https://chessprogramming.wikispaces.com ... D%20Wacnew

Code: Select all

2rr3k/pp3pp1/1nnqbN1p/3pN3/2pP4/2P3Q1/PPB4P/R4RK1 w - - bm Qg6; id "WAC.001";
8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - bm Rxb2; id "WAC.002";
5rk1/1ppb3p/p1pb4/6q1/3P1p1r/2P1R2P/PP1BQ1P1/5RKN w - - bm Rg3; id "WAC.003";
r1bq2rk/pp3pbp/2p1p1pQ/7P/3P4/2PB1N2/PP3PPR/2KR4 w - - bm Qxh7+; id "WAC.004";
5k2/6pp/p1qN4/1p1p4/3P4/2PKP2Q/PP3r2/3R4 b - - bm Qc4+; id "WAC.005";
7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - bm Rb7; id "WAC.006";
rnbqkb1r/pppp1ppp/8/4P3/6n1/7P/PPPNPPP1/R1BQKBNR b KQkq - bm Ne3; id "WAC.007";
r4q1k/p2bR1rp/2p2Q1N/5p2/5p2/2P5/PP3PPP/R5K1 w - - bm Rf7; id "WAC.008";
3q1rk1/p4pp1/2pb3p/3p4/6Pr/1PNQ4/P1PB1PP1/4RRK1 b - - bm Bh2+; id "WAC.009";
2br2k1/2q3rn/p2NppQ1/2p1P3/Pp5R/4P3/1P3PPP/3R2K1 w - - bm Rxh7; id "WAC.010";
r1b1kb1r/3q1ppp/pBp1pn2/8/Np3P2/5B2/PPP3PP/R2Q1RK1 w kq - bm Bxc6; id "WAC.011";
4k1r1/2p3r1/1pR1p3/3pP2p/3P2qP/P4N2/1PQ4P/5R1K b - - bm Qxf3+; id "WAC.012";
5rk1/pp4p1/2n1p2p/2Npq3/2p5/6P1/P3P1BP/R4Q1K w - - bm Qxf8+; id "WAC.013";
r2rb1k1/pp1q1p1p/2n1p1p1/2bp4/5P2/PP1BPR1Q/1BPN2PP/R5K1 w - - bm Qxh7+; id "WAC.014";
1R6/1brk2p1/4p2p/p1P1Pp2/P7/6P1/1P4P1/2R3K1 w - - bm Rxb7; id "WAC.015";
r4rk1/ppp2ppp/2n5/2bqp3/8/P2PB3/1PP1NPPP/R2Q1RK1 w - - bm Nc3; id "WAC.016";
1k5r/pppbn1pp/4q1r1/1P3p2/2NPp3/1QP5/P4PPP/R1B1R1K1 w - - bm Ne5; id "WAC.017";
R7/P4k2/8/8/8/8/r7/6K1 w - - bm Rh8; id "WAC.018";
r1b2rk1/ppbn1ppp/4p3/1QP4q/3P4/N4N2/5PPP/R1B2RK1 w - - bm c6; id "WAC.019";
r2qkb1r/1ppb1ppp/p7/4p3/P1Q1P3/2P5/5PPP/R1B2KNR b kq - bm Bb5; id "WAC.020";
5rk1/1b3p1p/pp3p2/3n1N2/1P6/P1qB1PP1/3Q3P/4R1K1 w - - bm Qh6; id "WAC.021";
r1bqk2r/ppp1nppp/4p3/n5N1/2BPp3/P1P5/2P2PPP/R1BQK2R w KQkq - bm Ba2 Nxf7; id "WAC.022";
r3nrk1/2p2p1p/p1p1b1p1/2NpPq2/3R4/P1N1Q3/1PP2PPP/4R1K1 w - - bm g4; id "WAC.023";
6k1/1b1nqpbp/pp4p1/5P2/1PN5/4Q3/P5PP/1B2B1K1 b - - bm Bd4; id "WAC.024";
3R1rk1/8/5Qpp/2p5/2P1p1q1/P3P3/1P2PK2/8 b - - bm Qh4+; id "WAC.025";
3r2k1/1p1b1pp1/pq5p/8/3NR3/2PQ3P/PP3PP1/6K1 b - - bm Bf5; id "WAC.026";
7k/pp4np/2p3p1/3pN1q1/3P4/Q7/1r3rPP/2R2RK1 w - - bm Qf8+; id "WAC.027";
1r1r2k1/4pp1p/2p1b1p1/p3R3/RqBP4/4P3/1PQ2PPP/6K1 b - - bm Qe1+; id "WAC.028";
r2q2k1/pp1rbppp/4pn2/2P5/1P3B2/6P1/P3QPBP/1R3RK1 w - - bm c6; id "WAC.029";
1r3r2/4q1kp/b1pp2p1/5p2/pPn1N3/6P1/P3PPBP/2QRR1K1 w - - bm Nxd6; id "WAC.030";
rb3qk1/pQ3ppp/4p3/3P4/8/1P3N2/1P3PPP/3R2K1 w - - bm Qxa8 d6 dxe6 g3; id "WAC.031";
6k1/p4p1p/1p3np1/2q5/4p3/4P1N1/PP3PPP/3Q2K1 w - - bm Qd8+; id "WAC.032";
8/p1q2pkp/2Pr2p1/8/P3Q3/6P1/5P1P/2R3K1 w - - bm Qe5+ Qf4; id "WAC.033";
7k/1b1r2p1/p6p/1p2qN2/3bP3/3Q4/P5PP/1B1R3K b - - bm Bg1; id "WAC.034";
r3r2k/2R3pp/pp1q1p2/8/3P3R/7P/PP3PP1/3Q2K1 w - - bm Rxh7+; id "WAC.035";
3r4/2p1rk2/1pQq1pp1/7p/1P1P4/P4P2/6PP/R1R3K1 b - - bm Re1+; id "WAC.036";
2r5/2rk2pp/1pn1pb2/pN1p4/P2P4/1N2B3/nPR1KPPP/3R4 b - - bm Nxd4+; id "WAC.037";
4k3/p4prp/1p6/2b5/8/2Q3P1/P2R1PKP/4q3 w - - bm Qd3 Rd8+; id "WAC.038";
r1br2k1/pp2bppp/2nppn2/8/2P1PB2/2N2P2/PqN1B1PP/R2Q1R1K w - - bm Na4; id "WAC.039";
3r1r1k/1p4pp/p4p2/8/1PQR4/6Pq/P3PP2/2R3K1 b - - bm Rc8; id "WAC.040";
1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - bm Ka5 Kc5 b7; id "WAC.041";
r1b1r1k1/pp1n1pbp/1qp3p1/3p4/1B1P4/Q3PN2/PP2BPPP/R4RK1 w - - bm Ba5; id "WAC.042";
r2q3k/p2P3p/1p3p2/3QP1r1/8/B7/P5PP/2R3K1 w - - bm Be7 Qxa8; id "WAC.043";
3rb1k1/pq3pbp/4n1p1/3p4/2N5/2P2QB1/PP3PPP/1B1R2K1 b - - bm dxc4; id "WAC.044";
7k/2p1b1pp/8/1p2P3/1P3r2/2P3Q1/1P5P/R4qBK b - - bm Qxa1; id "WAC.045";
r1bqr1k1/pp1nb1p1/4p2p/3p1p2/3P4/P1N1PNP1/1PQ2PP1/3RKB1R w K - bm Nb5; id "WAC.046";
r1b2rk1/pp2bppp/2n1pn2/q5B1/2BP4/2N2N2/PP2QPPP/2R2RK1 b - - bm Nxd4; id "WAC.047";
1rbq1rk1/p1p1bppp/2p2n2/8/Q1BP4/2N5/PP3PPP/R1B2RK1 b - - bm Rb4; id "WAC.048";
2b3k1/4rrpp/p2p4/2pP2RQ/1pP1Pp1N/1P3P1P/1q6/6RK w - - bm Qxh7+; id "WAC.049";
k4r2/1R4pb/1pQp1n1p/3P4/5p1P/3P2P1/r1q1R2K/8 w - - bm Rxb6+; id "WAC.050";
r1bq1r2/pp4k1/4p2p/3pPp1Q/3N1R1P/2PB4/6P1/6K1 w - - bm Rg4+; id "WAC.051";
r1k5/1p3q2/1Qpb4/3N1p2/5Pp1/3P2Pp/PPPK3P/4R3 w - - bm Re7 c4; id "WAC.052";
6k1/6p1/p7/3Pn3/5p2/4rBqP/P4RP1/5QK1 b - - bm Re1; id "WAC.053";
r3kr2/1pp4p/1p1p4/7q/4P1n1/2PP2Q1/PP4P1/R1BB2K1 b q - bm Qh1+; id "WAC.054";
r3r1k1/pp1q1pp1/4b1p1/3p2B1/3Q1R2/8/PPP3PP/4R1K1 w - - bm Qxg7+; id "WAC.055";
r1bqk2r/pppp1ppp/5n2/2b1n3/4P3/1BP3Q1/PP3PPP/RNB1K1NR b KQkq - bm Bxf2+; id "WAC.056";
r3q1kr/ppp5/3p2pQ/8/3PP1b1/5R2/PPP3P1/5RK1 w - - bm Rf8+; id "WAC.057";
8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - bm Qd1+; id "WAC.058";
r1b2rk1/2p1qnbp/p1pp2p1/5p2/2PQP3/1PN2N1P/PB3PP1/3R1RK1 w - - bm Nd5; id "WAC.059";
rn1qr1k1/1p2np2/2p3p1/8/1pPb4/7Q/PB1P1PP1/2KR1B1R w - - bm Qh8+; id "WAC.060";
3qrbk1/ppp1r2n/3pP2p/3P4/2P4P/1P3Q2/PB6/R4R1K w - - bm Qf7+; id "WAC.061";
6r1/3Pn1qk/p1p1P1rp/2Q2p2/2P5/1P4P1/P3R2P/5RK1 b - - bm Rxg3+; id "WAC.062";
r1brnbk1/ppq2pp1/4p2p/4N3/3P4/P1PB1Q2/3B1PPP/R3R1K1 w - - bm Nxf7; id "WAC.063";
8/6pp/3q1p2/3n1k2/1P6/3NQ2P/5PP1/6K1 w - - bm g4+; id "WAC.064";
1r1r1qk1/p2n1p1p/bp1Pn1pQ/2pNp3/2P2P1N/1P5B/P6P/3R1RK1 w - - bm Ne7+; id "WAC.065";
1k1r2r1/ppq5/1bp4p/3pQ3/8/2P2N2/PP4P1/R4R1K b - - bm Qxe5; id "WAC.066";
3r2k1/p2q4/1p4p1/3rRp1p/5P1P/6PK/P3R3/3Q4 w - - bm Rxd5; id "WAC.067";
6k1/5ppp/1q6/2b5/8/2R1pPP1/1P2Q2P/7K w - - bm Qxe3; id "WAC.068";
2k5/pppr4/4R3/4Q3/2pp2q1/8/PPP2PPP/6K1 w - - bm f3 h3; id "WAC.069";
2kr3r/pppq1ppp/3p1n2/bQ2p3/1n1PP3/1PN1BN1P/1PP2PP1/2KR3R b - - bm Na2+; id "WAC.070";
2kr3r/pp1q1ppp/5n2/1Nb5/2Pp1B2/7Q/P4PPP/1R3RK1 w - - bm Nxa7+; id "WAC.071";
r3r1k1/pp1n1ppp/2p5/4Pb2/2B2P2/B1P5/P5PP/R2R2K1 w - - bm e6; id "WAC.072";
r1q3rk/1ppbb1p1/4Np1p/p3pP2/P3P3/2N4R/1PP1Q1PP/3R2K1 w - - bm Qd2; id "WAC.073";
5r1k/pp4pp/2p5/2b1P3/4Pq2/1PB1p3/P3Q1PP/3N2K1 b - - bm Qf1+; id "WAC.074";
r3r1k1/pppq1ppp/8/8/1Q4n1/7P/PPP2PP1/RNB1R1K1 b - - bm Qd6; id "WAC.075";
r1b1qrk1/2p2ppp/pb1pnn2/1p2pNB1/3PP3/1BP5/PP2QPPP/RN1R2K1 w - - bm Bxf6; id "WAC.076";
3r2k1/ppp2ppp/6q1/b4n2/3nQB2/2p5/P4PPP/RN3RK1 b - - bm Ng3; id "WAC.077";
r2q3r/ppp2k2/4nbp1/5Q1p/2P1NB2/8/PP3P1P/3RR1K1 w - - bm Ng5+; id "WAC.078";
r3k2r/pbp2pp1/3b1n2/1p6/3P3p/1B2N1Pq/PP1PQP1P/R1B2RK1 b kq - bm Qxh2+; id "WAC.079";
r4rk1/p1B1bpp1/1p2pn1p/8/2PP4/3B1P2/qP2QP1P/3R1RK1 w - - bm Ra1; id "WAC.080";
r4rk1/1bR1bppp/4pn2/1p2N3/1P6/P3P3/4BPPP/3R2K1 b - - bm Bd6; id "WAC.081";
3rr1k1/pp3pp1/4b3/8/2P1B2R/6QP/P3q1P1/5R1K w - - bm Bh7+; id "WAC.082";
3rr1k1/ppqbRppp/2p5/8/3Q1n2/2P3N1/PPB2PPP/3R2K1 w - - bm Qxd7; id "WAC.083";
r2q1r1k/2p1b1pp/p1n5/1p1Q1bN1/4n3/1BP1B3/PP3PPP/R4RK1 w - - bm Qg8+; id "WAC.084";
kr2R3/p4r2/2pq4/2N2p1p/3P2p1/Q5P1/5P1P/5BK1 w - - bm Na6; id "WAC.085";
8/p7/1ppk1n2/5ppp/P1PP4/2P1K1P1/5N1P/8 b - - bm Ng4+; id "WAC.086";
8/p3k1p1/4r3/2ppNpp1/PP1P4/2P3KP/5P2/8 b - - bm Rxe5; id "WAC.087";
r6k/p1Q4p/2p1b1rq/4p3/B3P3/4P3/PPP3P1/4RRK1 b - - bm Rxg2+; id "WAC.088";
1r3b1k/p4rpp/4pp2/3q4/2ppbPPQ/6RK/PP5P/2B1NR2 b - - bm g5; id "WAC.089";
3qrrk1/1pp2pp1/1p2bn1p/5N2/2P5/P1P3B1/1P4PP/2Q1RRK1 w - - bm Nxg7; id "WAC.090";
2qr2k1/4b1p1/2p2p1p/1pP1p3/p2nP3/PbQNB1PP/1P3PK1/4RB2 b - - bm Be6; id "WAC.091";
r4rk1/1p2ppbp/p2pbnp1/q7/3BPPP1/2N2B2/PPP4P/R2Q1RK1 b - - bm Bxg4; id "WAC.092";
r1b1k1nr/pp3pQp/4pq2/3pn3/8/P1P5/2P2PPP/R1B1KBNR w KQkq - bm Bh6; id "WAC.093";
8/k7/p7/3Qp2P/n1P5/3KP3/1q6/8 b - - bm e4+; id "WAC.094";
2r5/1r6/4pNpk/3pP1qp/8/2P1QP2/5PK1/R7 w - - bm Ng4+; id "WAC.095";
r1b4k/ppp2Bb1/6Pp/3pP3/1qnP1p1Q/8/PPP3P1/1K1R3R w - - bm Qd8+ b3; id "WAC.096";
6k1/5p2/p5np/4B3/3P4/1PP1q3/P3r1QP/6RK w - - bm Qa8+; id "WAC.097";
1r3rk1/5pb1/p2p2p1/Q1n1q2p/1NP1P3/3p1P1B/PP1R3P/1K2R3 b - - bm Nxe4; id "WAC.098";
r1bq1r1k/1pp1Np1p/p2p2pQ/4R3/n7/8/PPPP1PPP/R1B3K1 w - - bm Rh5; id "WAC.099";
8/k1b5/P4p2/1Pp2p1p/K1P2P1P/8/3B4/8 w - - bm Be3 b6+; id "WAC.100";
5rk1/p5pp/8/8/2Pbp3/1P4P1/7P/4RN1K b - - bm Bc3; id "WAC.101";
2Q2n2/2R4p/1p1qpp1k/8/3P3P/3B2P1/5PK1/r7 w - - bm Qxf8+; id "WAC.102";
6k1/2pb1r1p/3p1PpQ/p1nPp3/1q2P3/2N2P2/PrB5/2K3RR w - - bm Qxg6+; id "WAC.103";
b4r1k/pq2rp2/1p1bpn1p/3PN2n/2P2P2/P2B3K/1B2Q2N/3R2R1 w - - bm Qxh5; id "WAC.104";
r2r2k1/pb3ppp/1p1bp3/7q/3n2nP/PP1B2P1/1B1N1P2/RQ2NRK1 b - - bm Bxg3 Qxh4; id "WAC.105";
4rrk1/pppb4/7p/3P2pq/3Qn3/P5P1/1PP4P/R3RNNK b - - bm Nf2+; id "WAC.106";
5n2/pRrk2p1/P4p1p/4p3/3N4/5P2/6PP/6K1 w - - bm Nb5; id "WAC.107";
r5k1/1q4pp/2p5/p1Q5/2P5/5R2/4RKPP/r7 w - - bm Qe5; id "WAC.108";
rn2k1nr/pbp2ppp/3q4/1p2N3/2p5/QP6/PB1PPPPP/R3KB1R b KQkq - bm c3; id "WAC.109";
2kr4/bp3p2/p2p2b1/P7/2q5/1N4B1/1PPQ2P1/2KR4 b - - bm Be3; id "WAC.110";
6k1/p5p1/5p2/2P2Q2/3pN2p/3PbK1P/7P/6q1 b - - bm Qf1+; id "WAC.111";
r4kr1/ppp5/4bq1b/7B/2PR1Q1p/2N3P1/PP3P1P/2K1R3 w - - bm Rxe6; id "WAC.112";
rnbqkb1r/1p3ppp/5N2/1p2p1B1/2P5/8/PP2PPPP/R2QKB1R b KQkq - bm Qxf6; id "WAC.113";
r1b1rnk1/1p4pp/p1p2p2/3pN2n/3P1PPq/2NBPR1P/PPQ5/2R3K1 w - - bm Bxh7+; id "WAC.114";
4N2k/5rpp/1Q6/p3q3/8/P5P1/1P3P1P/5K2 w - - bm Nd6; id "WAC.115";
r2r2k1/2p2ppp/p7/1p2P1n1/P6q/5P2/1PB1QP1P/R5RK b - - bm Rd2; id "WAC.116";
3r1rk1/q4ppp/p1Rnp3/8/1p6/1N3P2/PP3QPP/3R2K1 b - - bm Ne4; id "WAC.117";
r5k1/pb2rpp1/1p6/2p4q/5R2/2PB2Q1/P1P3PP/5R1K w - - bm Rh4; id "WAC.118";
r2qr1k1/p1p2ppp/2p5/2b5/4nPQ1/3B4/PPP3PP/R1B2R1K b - - bm Qxd3; id "WAC.119";
r4rk1/1bn2qnp/3p1B1Q/p2P1pP1/1pp5/5N1P/PPB2P2/2KR3R w - - bm Rhg1 g6; id "WAC.120";
6k1/5p1p/2bP2pb/4p3/2P5/1p1pNPPP/1P1Q1BK1/1q6 b - - bm Bxf3+; id "WAC.121";
1k6/ppp4p/1n2pq2/1N2Rb2/2P2Q2/8/P4KPP/3r1B2 b - - bm Rxf1+; id "WAC.122";
6k1/1b2rp2/1p4p1/3P4/PQ4P1/2N2q2/5P2/3R2K1 b - - bm Bxd5 Rc7 Re6; id "WAC.123";
6k1/3r4/2R5/P5P1/1P4p1/8/4rB2/6K1 b - - bm g3; id "WAC.124";
r1bqr1k1/pp3ppp/1bp5/3n4/3B4/2N2P1P/PPP1B1P1/R2Q1RK1 b - - bm Bxd4+; id "WAC.125";
r5r1/pQ5p/1qp2R2/2k1p3/4P3/2PP4/P1P3PP/6K1 w - - bm Rxc6+; id "WAC.126";
2k4r/1pr1n3/p1p1q2p/5pp1/3P1P2/P1P1P3/1R2Q1PP/1RB3K1 w - - bm Rxb7; id "WAC.127";
6rk/1pp2Qrp/3p1B2/1pb1p2R/3n1q2/3P4/PPP3PP/R6K w - - bm Qg6; id "WAC.128";
3r1r1k/1b2b1p1/1p5p/2p1Pp2/q1B2P2/4P2P/1BR1Q2K/6R1 b - - bm Bf3; id "WAC.129";
6k1/1pp3q1/5r2/1PPp4/3P1pP1/3Qn2P/3B4/4R1K1 b - - bm Qh6 Qh8; id "WAC.130";
2rq1bk1/p4p1p/1p4p1/3b4/3B1Q2/8/P4PpP/3RR1K1 w - - bm Re8; id "WAC.131";
4r1k1/5bpp/2p5/3pr3/8/1B3pPq/PPR2P2/2R2QK1 b - - bm Re1; id "WAC.132";
r1b1k2r/1pp1q2p/p1n3p1/3QPp2/8/1BP3B1/P5PP/3R1RK1 w kq - bm Bh4; id "WAC.133";
3r2k1/p6p/2Q3p1/4q3/2P1p3/P3Pb2/1P3P1P/2K2BR1 b - - bm Rd1+; id "WAC.134";
3r1r1k/N2qn1pp/1p2np2/2p5/2Q1P2N/3P4/PP4PP/3R1RK1 b - - bm Nd4; id "WAC.135";
6kr/1q2r1p1/1p2N1Q1/5p2/1P1p4/6R1/7P/2R3K1 w - - bm Rc8+; id "WAC.136";
3b1rk1/1bq3pp/5pn1/1p2rN2/2p1p3/2P1B2Q/1PB2PPP/R2R2K1 w - - bm Rd7; id "WAC.137";
r1bq3r/ppppR1p1/5n1k/3P4/6pP/3Q4/PP1N1PP1/5K1R w - - bm h5; id "WAC.138";
rnb3kr/ppp2ppp/1b6/3q4/3pN3/Q4N2/PPP2KPP/R1B1R3 w - - bm Nf6+; id "WAC.139";
r2b1rk1/pq4p1/4ppQP/3pB1p1/3P4/2R5/PP3PP1/5RK1 w - - bm Bc7 Rc7; id "WAC.140";
4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - bm Qxf4; id "WAC.141";
r2q3n/ppp2pk1/3p4/5Pr1/2NP1Qp1/2P2pP1/PP3K2/4R2R w - - bm Re8 f6+; id "WAC.142";
5b2/pp2r1pk/2pp1pRp/4rP1N/2P1P3/1P4QP/P3q1P1/5R1K w - - bm Rxh6+; id "WAC.143";
r2q1rk1/pp3ppp/2p2b2/8/B2pPPb1/7P/PPP1N1P1/R2Q1RK1 b - - bm d3; id "WAC.144";
r1bq4/1p4kp/3p1n2/p4pB1/2pQ4/8/1P4PP/4RRK1 w - - bm Re8; id "WAC.145";
8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8 Bd3 Bh3; id "WAC.146";
r2r2k1/ppqbppbp/2n2np1/2pp4/6P1/1P1PPNNP/PBP2PB1/R2QK2R b KQ - bm Nxg4; id "WAC.147";
2r1k3/6pr/p1nBP3/1p3p1p/2q5/2P5/P1R4P/K2Q2R1 w - - bm Rxg7; id "WAC.148";
6k1/6p1/2p4p/4Pp2/4b1qP/2Br4/1P2RQPK/8 b - - bm Bxg2; id "WAC.149";
r3r1k1/5p2/pQ1b2pB/1p6/4p3/6P1/Pq2BP1P/2R3K1 b - - bm Ba3 Be5 Bf8 e3; c0 "All win but e3 is best."; id "WAC.150";
8/3b2kp/4p1p1/pr1n4/N1N4P/1P4P1/1K3P2/3R4 w - - bm Nc3; id "WAC.151";
1br2rk1/1pqb1ppp/p3pn2/8/1P6/P1N1PN1P/1B3PP1/1QRR2K1 w - - bm Ne4; id "WAC.152";
2r3k1/q4ppp/p3p3/pnNp4/2rP4/2P2P2/4R1PP/2R1Q1K1 b - - bm Nxd4; id "WAC.153";
r1b2rk1/2p2ppp/p7/1p6/3P3q/1BP3bP/PP3QP1/RNB1R1K1 w - - bm Qxf7+; id "WAC.154";
5bk1/1rQ4p/5pp1/2pP4/3n1PP1/7P/1q3BB1/4R1K1 w - - bm d6; id "WAC.155";
r1b1qN1k/1pp3p1/p2p3n/4p1B1/8/1BP4Q/PP3KPP/8 w - - bm Qxh6+; id "WAC.156";
5rk1/p4ppp/2p1b3/3Nq3/4P1n1/1p1B2QP/1PPr2P1/1K2R2R w - - bm Ne7+; id "WAC.157";
5rk1/n1p1R1bp/p2p4/1qpP1QB1/7P/2P3P1/PP3P2/6K1 w - - bm Rxg7+; id "WAC.158";
r1b2r2/5P1p/ppn3pk/2p1p1Nq/1bP1PQ2/3P4/PB4BP/1R3RK1 w - - bm Ne6+; id "WAC.159";
qn1kr2r/1pRbb3/pP5p/P2pP1pP/3N1pQ1/3B4/3B1PP1/R5K1 w - - bm Qxd7+; id "WAC.160";
3r3k/3r1P1p/pp1Nn3/2pp4/7Q/6R1/Pq4PP/5RK1 w - - bm Qxd8+; id "WAC.161";
r3kbnr/p4ppp/2p1p3/8/Q1B3b1/2N1B3/PP3PqP/R3K2R w KQkq - bm Bd5; id "WAC.162";
5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+; id "WAC.163";
8/6pp/4p3/1p1n4/1NbkN1P1/P4P1P/1PR3K1/r7 w - - bm Rxc4+; id "WAC.164";
1r5k/p1p3pp/8/8/4p3/P1P1R3/1P1Q1qr1/2KR4 w - - bm Re2; id "WAC.165";
r3r1k1/5pp1/p1p4p/2Pp4/8/q1NQP1BP/5PP1/4K2R b K - bm d4; id "WAC.166";
7Q/ppp2q2/3p2k1/P2Ppr1N/1PP5/7R/5rP1/6K1 b - - bm Rxg2+; id "WAC.167";
r3k2r/pb1q1p2/8/2p1pP2/4p1p1/B1P1Q1P1/P1P3K1/R4R2 b kq - bm Qd2+; id "WAC.168";
5rk1/1pp3bp/3p2p1/2PPp3/1P2P3/2Q1B3/4q1PP/R5K1 b - - bm Bh6; id "WAC.169";
5r1k/6Rp/1p2p3/p2pBp2/1qnP4/4P3/Q4PPP/6K1 w - - bm Qxc4; id "WAC.170";
2rq4/1b2b1kp/p3p1p1/1p1nNp2/7P/1B2B1Q1/PP3PP1/3R2K1 w - - bm Bh6+; id "WAC.171";
5r1k/p5pp/8/1P1pq3/P1p2nR1/Q7/5BPP/6K1 b - - bm Qe1+; id "WAC.172";
2r1b3/1pp1qrk1/p1n1P1p1/7R/2B1p3/4Q1P1/PP3PP1/3R2K1 w - - bm Qh6+; id "WAC.173";
2r2rk1/6p1/p3pq1p/1p1b1p2/3P1n2/PP3N2/3N1PPP/1Q2RR1K b - - bm Nxg2; id "WAC.174";
r5k1/pppb3p/2np1n2/8/3PqNpP/3Q2P1/PPP5/R4RK1 w - - bm Nh5; id "WAC.175";
r1bq3r/ppp2pk1/3p1pp1/8/2BbPQ2/2NP2P1/PPP4P/R4R1K b - - bm Rxh2+; id "WAC.176";
r1b3r1/4qk2/1nn1p1p1/3pPp1P/p4P2/1p3BQN/PKPBN3/3R3R b - - bm Qa3+; id "WAC.177";
3r2k1/p1rn1p1p/1p2pp2/6q1/3PQNP1/5P2/P1P4R/R5K1 w - - bm Nxe6; id "WAC.178";
r1b2r1k/pp4pp/3p4/3B4/8/1QN3Pn/PP3q1P/R3R2K b - - bm Qg1+; id "WAC.179";
r1q2rk1/p3bppb/3p1n1p/2nPp3/1p2P1P1/6NP/PP2QPB1/R1BNK2R b KQ - bm Nxd5; id "WAC.180";
r3k2r/2p2p2/p2p1n2/1p2p3/4P2p/1PPPPp1q/1P5P/R1N2QRK b kq - bm Ng4; id "WAC.181";
r1b2rk1/ppqn1p1p/2n1p1p1/2b3N1/2N5/PP1BP3/1B3PPP/R2QK2R w KQ - bm Qh5; id "WAC.182";
1r2k1r1/5p2/b3p3/1p2b1B1/3p3P/3B4/PP2KP2/2R3R1 w - - bm Bf6; id "WAC.183";
4kn2/r4p1r/p3bQ2/q1nNP1Np/1p5P/8/PPP3P1/2KR3R w - - bm Qe7+; id "WAC.184";
1r1rb1k1/2p3pp/p2q1p2/3PpP1Q/Pp1bP2N/1B5R/1P4PP/2B4K w - - bm Qxh7+; id "WAC.185";
r5r1/p1q2p1k/1p1R2pB/3pP3/6bQ/2p5/P1P1NPPP/6K1 w - - bm Bf8+; id "WAC.186";
6k1/5p2/p3p3/1p3qp1/2p1Qn2/2P1R3/PP1r1PPP/4R1K1 b - - bm Nh3+; id "WAC.187";
3RNbk1/pp3p2/4rQpp/8/1qr5/7P/P4P2/3R2K1 w - - bm Qg7+; id "WAC.188";
3r1k2/1ppPR1n1/p2p1rP1/3P3p/4Rp1N/5K2/P1P2P2/8 w - - bm Re8+; id "WAC.189";
8/p2b2kp/1q1p2p1/1P1Pp3/4P3/3B2P1/P2Q3P/2Nn3K b - - bm Bh3; id "WAC.190";
2r1Rn1k/1p1q2pp/p7/5p2/3P4/1B4P1/P1P1QP1P/6K1 w - - bm Qc4; id "WAC.191";
r3k3/ppp2Npp/4Bn2/2b5/1n1pp3/N4P2/PPP3qP/R2QKR2 b Qq - bm Nd3+; id "WAC.192";
5bk1/p4ppp/Qp6/4B3/1P6/Pq2P1P1/2rr1P1P/R4RK1 b - - bm Qxe3; id "WAC.193";
5rk1/ppq2ppp/2p5/4bN2/4P3/6Q1/PPP2PPP/3R2K1 w - - bm Nh6+; id "WAC.194";
3r1rk1/1p3p2/p3pnnp/2p3p1/2P2q2/1P5P/PB2QPPN/3RR1K1 w - - bm g3; id "WAC.195";
rr4k1/p1pq2pp/Q1n1pn2/2bpp3/4P3/2PP1NN1/PP3PPP/R1B1K2R b KQ - bm Nb4; id "WAC.196";
7k/1p4p1/7p/3P1n2/4Q3/2P2P2/PP3qRP/7K b - - bm Qf1+; id "WAC.197";
2br2k1/ppp2p1p/4p1p1/4P2q/2P1Bn2/2Q5/PP3P1P/4R1RK b - - bm Rd3; id "WAC.198";
r1br2k1/pp2nppp/2n5/1B1q4/Q7/4BN2/PP3PPP/2R2RK1 w - - bm Bxc6 Rcd1 Rfd1; id "WAC.199";
2rqrn1k/pb4pp/1p2pp2/n2P4/2P3N1/P2B2Q1/1B3PPP/2R1R1K1 w - - bm Bxf6; id "WAC.200";
2b2r1k/4q2p/3p2pQ/2pBp3/8/6P1/1PP2P1P/R5K1 w - - bm Ra7; id "WAC.201";
QR2rq1k/2p3p1/3p1pPp/8/4P3/8/P1r3PP/1R4K1 b - - bm Rxa2; id "WAC.202";
r4rk1/5ppp/p3q1n1/2p2NQ1/4n3/P3P3/1B3PPP/1R3RK1 w - - bm Qh6; id "WAC.203";
r1b1qrk1/1p3ppp/p1p5/3Nb3/5N2/P7/1P4PQ/K1R1R3 w - - bm Rxe5; id "WAC.204";
r3rnk1/1pq2bb1/p4p2/3p1Pp1/3B2P1/1NP4R/P1PQB3/2K4R w - - bm Qxg5; id "WAC.205";
1Qq5/2P1p1kp/3r1pp1/8/8/7P/p4PP1/2R3K1 b - - bm Rc6; id "WAC.206";
r1bq2kr/p1pp1ppp/1pn1p3/4P3/2Pb2Q1/BR6/P4PPP/3K1BNR w - - bm Qxg7+; id "WAC.207";
3r1bk1/ppq3pp/2p5/2P2Q1B/8/1P4P1/P6P/5RK1 w - - bm Bf7+; id "WAC.208";
4kb1r/2q2p2/r2p4/pppBn1B1/P6P/6Q1/1PP5/2KRR3 w k - bm Rxe5+; id "WAC.209";
3r1rk1/pp1q1ppp/3pn3/2pN4/5PP1/P5PQ/1PP1B3/1K1R4 w - - bm Rh1; id "WAC.210";
r1bqrk2/pp1n1n1p/3p1p2/P1pP1P1Q/2PpP1NP/6R1/2PB4/4RBK1 w - - bm Qxf7+; id "WAC.211";
rn1qr2Q/pbppk1p1/1p2pb2/4N3/3P4/2N5/PPP3PP/R4RK1 w - - bm Qxg7+; id "WAC.212";
3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - bm Rxh7+; id "WAC.213";
r2r2k1/1p2qpp1/1np1p1p1/p3N3/2PPN3/bP5R/4QPPP/4R1K1 w - - bm Ng5; id "WAC.214";
3r2k1/pb1q1pp1/1p2pb1p/8/3N4/P2QB3/1P3PPP/1Br1R1K1 w - - bm Qh7+; id "WAC.215";
r2qr1k1/1b1nbppp/p3pn2/1p1pN3/3P1B2/2PB1N2/PP2QPPP/R4RK1 w - - bm Nxf7 a4; id "WAC.216";
r3kb1r/1pp3p1/p3bp1p/5q2/3QN3/1P6/PBP3P1/3RR1K1 w kq - bm Qd7+; id "WAC.217";
6k1/pp5p/2p3q1/6BP/2nPr1Q1/8/PP3R1K/8 w - - bm Bh6; id "WAC.218";
7k/p4q1p/1pb5/2p5/4B2Q/2P1B3/P6P/7K b - - bm Qf1+; id "WAC.219";
3rr1k1/ppp2ppp/8/5Q2/4n3/1B5R/PPP1qPP1/5RK1 b - - bm Qxf1+; id "WAC.220";
r3k3/P5bp/2N1bp2/4p3/2p5/6NP/1PP2PP1/3R2K1 w q - bm Rd8+; id "WAC.221";
2r1r2k/1q3ppp/p2Rp3/2p1P3/6QB/p3P3/bP3PPP/3R2K1 w - - bm Bf6; id "WAC.222";
r1bqk2r/pp3ppp/5n2/8/1b1npB2/2N5/PP1Q2PP/1K2RBNR w kq - bm Nxe4; id "WAC.223";
5rk1/p1q3pp/1p1r4/2p1pp1Q/1PPn1P2/3B3P/P2R2P1/3R2K1 b - - bm Rh6 e4; id "WAC.224";
4R3/4q1kp/6p1/1Q3b2/1P1b1P2/6KP/8/8 b - - bm Qh4+; id "WAC.225";
2b2rk1/p1p4p/2p1p1p1/br2N1Q1/1p2q3/8/PB3PPP/3R1RK1 w - - bm Nf7; id "WAC.226";
2k1rb1r/ppp3pp/2np1q2/5b2/2B2P2/2P1BQ2/PP1N1P1P/2KR3R b - - bm d5; id "WAC.227";
r4rk1/1bq1bp1p/4p1p1/p2p4/3BnP2/1N1B3R/PPP3PP/R2Q2K1 w - - bm Bxe4; id "WAC.228";
8/8/8/1p5r/p1p1k1pN/P2pBpP1/1P1K1P2/8 b - - bm Rxh4 b4; id "WAC.229";
2b5/1r6/2kBp1p1/p2pP1P1/2pP4/1pP3K1/1R3P2/8 b - - bm Rb4; id "WAC.230";
r4rk1/1b1nqp1p/p5p1/1p2PQ2/2p5/5N2/PP3PPP/R1BR2K1 w - - bm Bg5; id "WAC.231";
1R2rq1k/2p3p1/Q2p1pPp/8/4P3/8/P1r3PP/1R4K1 w - - bm Qb5 Rxe8; id "WAC.232";
5rk1/p1p2r1p/2pp2p1/4p3/PPPnP3/3Pq1P1/1Q1R1R1P/4NK2 b - - bm Nb3; id "WAC.233";
2kr1r2/p6p/5Pp1/2p5/1qp2Q1P/7R/PP6/1KR5 w - - bm Rb3; id "WAC.234";
5r2/1p1RRrk1/4Qq1p/1PP3p1/8/4B3/1b3P1P/6K1 w - - bm Qe4 Qxf7+ Rxf7+; id "WAC.235";
1R6/p5pk/4p2p/4P3/8/2r3qP/P3R1b1/4Q1K1 b - - bm Rc1; id "WAC.236";
r5k1/pQp2qpp/8/4pbN1/3P4/6P1/PPr4P/1K1R3R b - - bm Rc1+; id "WAC.237";
1k1r4/pp1r1pp1/4n1p1/2R5/2Pp1qP1/3P2QP/P4PB1/1R4K1 w - - bm Bxb7; id "WAC.238";
8/6k1/5pp1/Q6p/5P2/6PK/P4q1P/8 b - - bm Qf1+; id "WAC.239";
2b4k/p1b2p2/2p2q2/3p1PNp/3P2R1/3B4/P1Q2PKP/4r3 w - - bm Qxc6; id "WAC.240";
2rq1rk1/pp3ppp/2n2b2/4NR2/3P4/PB5Q/1P4PP/3R2K1 w - - bm Qxh7+; id "WAC.241";
r1b1r1k1/pp1nqp2/2p1p1pp/8/4N3/P1Q1P3/1P3PPP/1BRR2K1 w - - bm Rxd7; id "WAC.242";
1r3r1k/3p4/1p1Nn1R1/4Pp1q/pP3P1p/P7/5Q1P/6RK w - - bm Qe2; id "WAC.243";
r6r/pp3ppp/3k1b2/2pb4/B4Pq1/2P1Q3/P5PP/1RBR2K1 w - - bm Qxc5+; id "WAC.244";
4rrn1/ppq3bk/3pPnpp/2p5/2PB4/2NQ1RPB/PP5P/5R1K w - - bm Qxg6+; id "WAC.245";
6R1/4qp1p/ppr1n1pk/8/1P2P1QP/6N1/P4PP1/6K1 w - - bm Qh5+; id "WAC.246";
2k1r3/1p2Bq2/p2Qp3/Pb1p1p1P/2pP1P2/2P5/2P2KP1/1R6 w - - bm Rxb5; id "WAC.247";
5r1k/1p4pp/3q4/3Pp1R1/8/8/PP4PP/4Q1K1 b - - bm Qc5+; id "WAC.248";
r4rk1/pbq2pp1/1ppbpn1p/8/2PP4/1P1Q1N2/PBB2PPP/R3R1K1 w - - bm c5 d5; id "WAC.249";
1b5k/7P/p1p2np1/2P2p2/PP3P2/4RQ1R/q2r3P/6K1 w - - bm Re8+; id "WAC.250";
k7/p4p2/P1q1b1p1/3p3p/3Q4/7P/5PP1/1R4K1 w - - bm Qe5 Qf4; id "WAC.251";
1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - bm Bg4 Re2; c0 "Bg4 wins, but Re2 is far better."; id "WAC.252";
k5r1/p4b2/2P5/5p2/3P1P2/4QBrq/P5P1/4R1K1 w - - bm Qe8+; id "WAC.253";
r6k/pp3p1p/2p1bp1q/b3p3/4Pnr1/2PP2NP/PP1Q1PPN/R2B2RK b - - bm Nxh3; id "WAC.254";
3r3r/p4pk1/5Rp1/3q4/1p1P2RQ/5N2/P1P4P/2b4K w - - bm Rfxg6+; id "WAC.255";
3r1rk1/1pb1qp1p/2p3p1/p7/P2Np2R/1P5P/1BP2PP1/3Q1BK1 w - - bm Nf5; id "WAC.256";
4r1k1/pq3p1p/2p1r1p1/2Q1p3/3nN1P1/1P6/P1P2P1P/3RR1K1 w - - bm Rxd4; id "WAC.257";
r3brkn/1p5p/2p2Ppq/2Pp3B/3Pp2Q/4P1R1/6PP/5R1K w - - bm Bxg6; id "WAC.258";
r1bq1rk1/ppp2ppp/2np4/2bN1PN1/2B1P3/3p4/PPP2nPP/R1BQ1K1R w - - bm Qh5; id "WAC.259";
2r2b1r/p1Nk2pp/3p1p2/N2Qn3/4P3/q6P/P4PP1/1R3K1R w - - bm Qe6+; id "WAC.260";
r5k1/1bp3pp/p2p4/1p6/5p2/1PBP1nqP/1PP3Q1/R4R1K b - - bm Nd4; id "WAC.261";
6k1/p1B1b2p/2b3r1/2p5/4p3/1PP1N1Pq/P2R1P2/3Q2K1 b - - bm Rh6; id "WAC.262";
rnbqr2k/pppp1Qpp/8/b2NN3/2B1n3/8/PPPP1PPP/R1B1K2R w KQ - bm Qg8+; id "WAC.263";
r2r2k1/1R2qp2/p5pp/2P5/b1PN1b2/P7/1Q3PPP/1B1R2K1 b - - bm Qe5 Rab8; id "WAC.264";
2r1k2r/2pn1pp1/1p3n1p/p3PP2/4q2B/P1P5/2Q1N1PP/R4RK1 w k - bm exf6; id "WAC.265";
r3q2r/2p1k1p1/p5p1/1p2Nb2/1P2nB2/P7/2PNQbPP/R2R3K b - - bm Rxh2+; id "WAC.266";
2r1kb1r/pp3ppp/2n1b3/1q1N2B1/1P2Q3/8/P4PPP/3RK1NR w Kk - bm Nc7+; id "WAC.267";
2r3kr/ppp2n1p/7B/5q1N/1bp5/2Pp4/PP2RPPP/R2Q2K1 w - - bm Re8+; id "WAC.268";
2kr2nr/pp1n1ppp/2p1p3/q7/1b1P1B2/P1N2Q1P/1PP1BPP1/R3K2R w KQ - bm axb4; id "WAC.269";
2r1r1k1/pp1q1ppp/3p1b2/3P4/3Q4/5N2/PP2RPPP/4R1K1 w - - bm Qg4; id "WAC.270";
2kr4/ppp3Pp/4RP1B/2r5/5P2/1P6/P2p4/3K4 w - - bm Rd6; id "WAC.271";
nrq4r/2k1p3/1p1pPnp1/pRpP1p2/P1P2P2/2P1BB2/1R2Q1P1/6K1 w - - bm Bxc5; id "WAC.272";
2k4B/bpp1qp2/p1b5/7p/1PN1n1p1/2Pr4/P5PP/R3QR1K b - - bm Ng3+ g3; id "WAC.273";
8/1p6/p5R1/k7/Prpp4/K7/1NP5/8 w - - am Rd6; bm Rb6 Rg5+; id "WAC.274";
r1b2rk1/1p1n1ppp/p1p2q2/4p3/P1B1Pn2/1QN2N2/1P3PPP/3R1RK1 b - - bm Nc5 Nxg2 b5; id "WAC.275";
r5k1/pp1RR1pp/1b6/6r1/2p5/B6P/P4qPK/3Q4 w - - bm Qd5+; id "WAC.276";
1r4r1/p2kb2p/bq2p3/3p1p2/5P2/2BB3Q/PP4PP/3RKR2 b - - bm Rg3 Rxg2; id "WAC.277";
r2qkb1r/pppb2pp/2np1n2/5pN1/2BQP3/2N5/PPP2PPP/R1B1K2R w KQkq - bm Bf7+; id "WAC.278";
r7/4b3/2p1r1k1/1p1pPp1q/1P1P1P1p/PR2NRpP/2Q3K1/8 w - - bm Nxf5 Rc3; id "WAC.279";
r1r2bk1/5p1p/pn4p1/N2b4/3Pp3/B3P3/2q1BPPP/RQ3RK1 b - - bm Bxa3; id "WAC.280";
2R5/2R4p/5p1k/6n1/8/1P2QPPq/r7/6K1 w - - bm Rxh7+; id "WAC.281";
6k1/2p3p1/1p1p1nN1/1B1P4/4PK2/8/2r3b1/7R w - - bm Rh8+; id "WAC.282";
3q1rk1/4bp1p/1n2P2Q/3p1p2/6r1/Pp2R2N/1B4PP/7K w - - bm Ng5; id "WAC.283";
3r3k/pp4pp/8/1P6/3N4/Pn2P1qb/1B1Q2B1/2R3K1 w - - bm Nf5; id "WAC.284";
2rr3k/1b2bppP/p2p1n2/R7/3P4/1qB2P2/1P4Q1/1K5R w - - bm Qxg7+; id "WAC.285";
3r1k2/1p6/p4P2/2pP2Qb/8/1P1KB3/P6r/8 b - - bm Rxd5+; id "WAC.286";
rn3k1r/pp2bBpp/2p2n2/q5N1/3P4/1P6/P1P3PP/R1BQ1RK1 w - - bm Qg4 Qh5; id "WAC.287";
r1b2rk1/p4ppp/1p1Qp3/4P2N/1P6/8/P3qPPP/3R1RK1 w - - bm Nf6+; id "WAC.288";
2r3k1/5p1p/p3q1p1/2n3P1/1p1QP2P/1P4N1/PK6/2R5 b - - bm Qe5; id "WAC.289";
2k2r2/2p5/1pq5/p1p1n3/P1P2n1B/1R4Pp/2QR4/6K1 b - - bm Ne2+; id "WAC.290";
5r1k/3b2p1/p6p/1pRpR3/1P1P2q1/P4pP1/5QnP/1B4K1 w - - bm h3; id "WAC.291";
4r3/1Q1qk2p/p4pp1/3Pb3/P7/6PP/5P2/4R1K1 w - - bm d6+; id "WAC.292";
1nbq1r1k/3rbp1p/p1p1pp1Q/1p6/P1pPN3/5NP1/1P2PPBP/R4RK1 w - - bm Nfg5; id "WAC.293";
3r3k/1r3p1p/p1pB1p2/8/p1qNP1Q1/P6P/1P4P1/3R3K w - - bm Bf8 Nf5 Qf4; id "WAC.294";
4r3/p4r1p/R1p2pp1/1p1bk3/4pNPP/2P1K3/2P2P2/3R4 w - - bm Rxd5+; id "WAC.295";
3r4/1p2k2p/p1b1p1p1/4Q1Pn/2B3KP/4pP2/PP2R1N1/6q1 b - - bm Rd4+ Rf8; id "WAC.296";
3r1rk1/p3qp1p/2bb2p1/2p5/3P4/1P6/PBQN1PPP/2R2RK1 b - - bm Bxg2 Bxh2+; id "WAC.297";
3Q4/p3b1k1/2p2rPp/2q5/4B3/P2P4/7P/6RK w - - bm Qh8+; id "WAC.298";
1n2rr2/1pk3pp/pNn2p2/2N1p3/8/6P1/PP2PPKP/2RR4 w - - bm Nca4; id "WAC.299";
b2b1r1k/3R1ppp/4qP2/4p1PQ/4P3/5B2/4N1K1/8 w - - bm g6; id "WAC.300";

[Dann Corbit]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

I think it is important to understand why tactics stink so bad.
The performance in openings (by contrast) is spectacular.
If the issue is simply that most tactical positions involve a sacrifice, that would give engines a strategy against the NN format.

I guess that if you trained on tactical sets, you would get a tactical monster that stinks at real chess, but that is pure speculation on my part.

It might conclude that sacrifices in general are a good idea, and of course they are usually a bad idea.

[Eelco de Groot]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

I think it is important to understand why tactics stink so bad.
The performance in openings (by contrast) is spectacular.
If the issue is simply that most tactical positions involve a sacrifice, that would give engines a strategy against the NN format.

I guess that if you trained on tactical sets, you would get a tactical monster that stinks at real chess, but that is pure speculation on my part.

It might conclude that sacrifices in general are a good idea, and of course they are usually a bad idea.

In another thread Gary Linscott said

LC0 plays quite reasonable chess using only its evaluation

I was talking about a minimax searcher, as standard Stockfish is.

But even LC0 doesn't just evaluate a non-quiescent position and use that eval to choose moves. My understanding is it does a form of Monte Carlo tree search and that does not prematurely terminate at a non-quiescent position.

--Jon

The MCTS in LC0/A0 does not do rollouts - so it does terminate in non-quiescent positions, and relies on the network to evaluate them still.

Also no null move I think. which HGM has shown usually helps against horizon problems. In the opening this (horizon effects) is usually not such a problem and the NN is of course trained on positions it sees most often. I know very little about where LCzero starts from but that is usually the opening where you start from; the position you see most often. This very much resembles how I play chess. Tactics are for timetrouble only. It would be interesting to see if with a real quiescence search it could compete with Stockfish depth 0 I am still mystified about the search in A0 though I am not sure that it is like LC0, like Gary seems to be suggesting here. It seemed far superior to Stockfish in some games, so how can that be? And I mean the search, not the evaluation. I mean, has anyone spotted a horizon problem for Alpha Zero in those ten games. How is that possible? But I know really nothing about the paper and such or even of the 10 games we have.

[jdart]

These are mostly not deep tactics. If you fail to find these tactics you will be killed by an engine that is tactically aware. In fact, this test suite contains positions from human games, so a tactically aware human can find the solutions, too.

--Jon

[JohnS]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

Would the performance improve if you make some random moves starting from the test position to fill in the planes, say king shuffles that eventually lead back to the test position?

[jkiliani]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

Would the performance improve if you make some random moves starting from the test position to fill in the planes, say king shuffles that eventually lead back to the test position?

Rather unlikely I think, the neural net expects history planes that actually make sense (i.e. the position could potentially happen this way in a real game). You could try it anyway, maybe it helps...

[jkiliani]

OK, and what's your conclusion from all that?

It's no secret that Leela's weakest point is tactics, especially if you just give her FENs instead of positions with move history. If you want a tactics solver, you're simply using the wrong engine here..

I think it is important to understand why tactics stink so bad.
The performance in openings (by contrast) is spectacular.
If the issue is simply that most tactical positions involve a sacrifice, that would give engines a strategy against the NN format.

I guess that if you trained on tactical sets, you would get a tactical monster that stinks at real chess, but that is pure speculation on my part.

It might conclude that sacrifices in general are a good idea, and of course they are usually a bad idea.

I'm not sure that training on tactical sets would produce an engine all that much better at tactics, but it should definitely stink at positional chess because it will see tactics everywhere. "If all you have is a hammer, everything looks like a nail."

Leela will always be weak(er) playing positions that are very unlike those encountered in the actual training games, since here the neural net has to make deductions from insufficient good information. The policy head only has to miss one important candidate move in a tactical line for the engine not to find that tactic. In regular games against humans or other engines, it's very difficult for the opponent to lead Leela far enough out of her depth for this effect to matter without getting into a losing position anyway, but for a chess problem that she never had any contribution getting into? Likely happens all the time that those just don't look like anything Leela was ever trained on, with predictable results.

[jkiliani]

At some point in the future, it could probably be tried to train Leela (or a fork of her) on a mix of self-play games and tactical suites like this one. There's a chance that this would make the net at least more familiar with these types of positions, which is what's required to solve such puzzles. May take quite a bit of trial and error though to do that without weakening the general gameplay of the neural net, and it will definitely require a very LARGE database of tactical puzzles to train on.