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Asymmetric setups: balance rating

In an asymmetric game White starts from one of the 960 Chess960 back ranks and Black from another. Castling stays Chess960 castling for each side on its own rank. Of the 921,600 ordered pairs, 460,800 are distinct (a pair and its mirror image are the same position). This page ranks the pairs where the engine finds no starting edge for either side — including pairs where Black's rank fully compensates White's first move.

CC BY 4.0 Methodology and data: CC BY 4.0 — free to use with attribution to the author.

Data generated 2026-09-20 17:43:42

How the search works

Every pair is first screened quickly; a pair moves to the next, deeper stage only while its evaluation stays inside a tightening window. Stages and windows (nodes per position, |cp| limit to advance): S0: 100 000 / ≤ 50; S1: 500 000 / ≤ 40; S2: 2 000 000 / ≤ 41; S3: 8 000 000 / ≤ 32; S4: 32 000 000 / ≤ 30; S5: 128 000 000 / ≤ 35. After the last stage the best 64 pairs keep receiving a doubled budget, without end. Single-thread search with a fixed node budget: every number is reproducible bit for bit.

Asymmetric setups: methodology

Coverage so far

Explored 460 800 of 460 800 distinct pairs. The search never stops; this table is regenerated from the live data, and every explored pair is in the full download with its stage.

Stage Nodes Pairs Even (|cp| ≤ 10) White better Black better
S0 100 000 277 515 0 233961 43554
S1 500 000 178 410 23204 97018 58188
S2 2 000 000 1 476 0 769 707
S3 8 000 000 206 7 112 87
S4 32 000 000 228 0 119 109
S5 128 000 000 2 742 918 958 866
S6 ×2 123 73 19 31
S7 ×2 90 85 3 2
S8 ×2 10 10 0 0

Rating (verified pairs)

Only pairs that reached the verification stages (128 000 000 nodes and more) are ranked: closer to zero is higher; at equal evaluation the deeper one is higher. 2848 pairs verified, 428 candidates in the pipeline.

# White setup Black setup Eval, cp Stage Side
1 7 QNBNRKRB 676 QBBRKNNR 0 S8 even
2 39 NNBQRKRB 571 RNKNBRQB 0 S8 even
3 70 NNBRKBQR 639 RNKQRNBB 0 S8 even
4 73 NNRBBKQR 705 BRKBQNNR 0 S8 even
5 85 NNBBRKRQ 256 BBNRKNQR 0 S8 even
6 317 NQRBKRBN 934 RKBRNBQN 0 S8 even
7 328 NBRQBKRN 184 NBRNBKRQ 0 S8 even
8 335 NRQKRNBB 143 NRQNKRBB 0 S8 even
9 495 QRNKNRBB 851 BRKNRNQB 0 S8 even
10 12 QBNNRKBR 7 QNBNRKRB 0 S7 even
11 15 QNNRKRBB 658 BRNKRBNQ 0 S7 even
12 25 NQNBBRKR 902 RKBQRBNN 0 S7 even
13 33 BNNBQRKR 35 BNNQRKRB 0 S7 even
14 33 BNNBQRKR 483 BQRNKNRB 0 S7 even
15 33 BNNBQRKR 930 BRKRNBQN 0 S7 even
16 41 NNQBBRKR 928 BBRKRNQN 0 S7 even
17 42 NNQRBBKR 464 BBRNNKRQ 0 S7 even
18 45 NNQBRKBR 146 BNRNQBKR 0 S7 even
19 57 NNRBBQKR 817 BRKBNQRN 0 S7 even
20 58 NNRQBBKR 547 BRNKNQRB 0 S7 even
21 61 NNRBQKBR 620 RBNQKRBN 0 S7 even
22 63 NNRQKRBB 31 NQNRKRBB 0 S7 even
23 65 BNNBRKQR 213 NQBBRKNR 0 S7 even
24 66 BNNRKBQR 138 NRQNBBKR 0 S7 even
25 74 NNRKBBQR 835 BRKNRQNB 0 S7 even
26 82 BNNRKBRQ 609 BRNBQKRN 0 S7 even
27 84 NBBNRKRQ 120 NBQRBNKR 0 S7 even
28 85 NNBBRKRQ 541 RNKBQNBR 0 S7 even
29 106 QNRNBBKR 40 NBNQBRKR 0 S7 even
30 106 QNRNBBKR 955 RKRNBNQB 0 S7 even
31 109 QNRBNKBR 53 NNBBRQKR 0 S7 even
32 121 NQRBBNKR 288 BBQNRKRN 0 S7 even
33 139 NRQNBKRB 304 BBNQRKRN 0 S7 even
34 140 NBRQNKBR 488 QBRNBKNR 0 S7 even
35 143 NRQNKRBB 885 RQBBKRNN 0 S7 even
36 151 NRBNQKRB 896 BBRKQRNN 0 S7 even
37 161 BNRBNKQR 283 NRKNBRQB 0 S7 even
38 166 NRBNKBQR 533 RNBBKQNR 0 S7 even
39 172 NBRNKQBR 854 RKBNRBNQ 0 S7 even
40 173 NRNBKQBR 319 NQRKRNBB 0 S7 even
41 177 BNRBNKRQ 145 BNRBNQKR 0 S7 even
42 179 BNRNKRQB 496 BBRQNKNR 0 S7 even
43 185 NRNBBKRQ 315 NQRKBRNB 0 S7 even
44 186 NRNKBBRQ 247 NRBKQNRB 0 S7 even
45 188 NBRNKRBQ 753 BRKBNNRQ 0 S7 even
46 188 NBRNKRBQ 896 BBRKQRNN 0 S7 even
47 193 BQNBRKNR 113 BNQBRNKR 0 S7 even
48 194 BQNRKBNR 304 BBNQRKRN 0 S7 even
49 196 QBBNRKNR 480 BBQRNKNR 0 S7 even
50 198 QNBRKBNR 819 BRKNQRNB 0 S7 even
51 223 NQRKNRBB 767 RKNNRQBB 0 S7 even
52 230 NRBQKBNR 447 RNNQKRBB 0 S7 even
53 241 BNRBKQNR 669 RNKBRNBQ 0 S7 even
54 251 NRKQBNRB 643 BRNKRQNB 0 S7 even
55 255 NRKQNRBB 947 BRKRNNQB 0 S7 even
56 275 BNRKNRQB 403 BRQNNKRB 0 S7 even
57 303 QNRKRNBB 48 BBNNRQKR 0 S7 even
58 303 QNRKRNBB 823 RKBNQRNB 0 S7 even
59 321 BNRBQKRN 901 RKBBQRNN 0 S7 even
60 327 NRBQKRNB 61 NNRBQKBR 0 S7 even
61 335 NRQKRNBB 829 RKNBQRBN 0 S7 even
62 394 QRNNBBKR 672 BBQRKNNR 0 S7 even
63 398 QRNNKBBR 651 RNKRBQNB 0 S7 even
64 407 RQBNNKRB 755 BRKNNRQB 0 S7 even
65 415 RQNNKRBB 309 NQBBRKRN 0 S7 even
66 466 BRNNKBRQ 726 RKBNQBNR 0 S7 even
67 468 RBBNNKRQ 49 BNNBRQKR 0 S7 even
68 473 RNNBBKRQ 353 BNRBKRQN 0 S7 even
69 498 BRQNKBNR 144 BBNRNQKR 0 S7 even
70 519 RNBQKNRB 595 BRQNKRNB 0 S7 even
71 522 RNQKBBNR 622 RNQKRBBN 0 S7 even
72 526 RNQKNBBR 918 RKBRQBNN 0 S7 even
73 159 NRNQKRBB 861 RKNBRNBQ 0 S6 even
74 7 QNBNRKRB 224 BBNRQKNR 0 S5 even
75 9 QNNBBRKR 42 NNQRBBKR 0 S5 even
76 9 QNNBBRKR 339 BNRKQRNB 0 S5 even
77 9 QNNBBRKR 524 RBNQKNBR 0 S5 even
78 9 QNNBBRKR 850 BRKNRBNQ 0 S5 even
79 10 QNNRBBKR 104 QBNRBNKR 0 S5 even
80 10 QNNRBBKR 711 RKBQNNRB 0 S5 even
81 17 BNQBNRKR 770 BQRKNBRN 0 S5 even
82 21 NQBBNRKR 220 NBQRKNBR 0 S5 even
83 29 NQNBRKBR 869 QRBBKRNN 0 S5 even
84 32 BBNNQRKR 211 BNQRKNRB 0 S5 even
85 37 NNBBQRKR 737 BRKBNNQR 0 S5 even
86 37 NNBBQRKR 842 RKNRBBQN 0 S5 even
87 39 NNBQRKRB 400 BBRQNNKR 0 S5 even
88 40 NBNQBRKR 148 NBBRNQKR 0 S5 even
89 46 NNQRKBBR 147 BNRNQKRB 0 S5 even
90 46 NNQRKBBR 583 QRBNKRNB 0 S5 even
91 46 NNQRKBBR 836 RBBKNRQN 0 S5 even
92 47 NNQRKRBB 106 QNRNBBKR 0 S5 even
93 47 NNQRKRBB 164 NBBRNKQR 0 S5 even
94 48 BBNNRQKR 400 BBRQNNKR 0 S5 even
95 51 BNNRQKRB 499 BRQNKNRB 0 S5 even
96 51 BNNRQKRB 516 RBBNQKNR 0 S5 even
97 53 NNBBRQKR 287 NRKNRQBB 0 S5 even
98 56 NBNRBQKR 175 NRNKQRBB 0 S5 even
99 56 NBNRBQKR 675 BQRKNNRB 0 S5 even
100 61 NNRBQKBR 139 NRQNBKRB 0 S5 even
101 62 NNRQKBBR 485 QRBBNKNR 0 S5 even
102 63 NNRQKRBB 214 NQBRKBNR 0 S5 even
103 65 BNNBRKQR 18 BNQNRBKR 0 S5 even
104 66 BNNRKBQR 242 BNRKQBNR 0 S5 even
105 66 BNNRKBQR 880 BBRQKRNN 0 S5 even
106 68 NBBNRKQR 272 BBNRKNRQ 0 S5 even
107 72 NBNRBKQR 836 RBBKNRQN 0 S5 even
108 74 NNRKBBQR 692 RBBQKNNR 0 S5 even
109 77 NNRBKQBR 486 QRBNKBNR 0 S5 even
110 79 NNRKQRBB 927 RKRQNNBB 0 S5 even
111 81 BNNBRKRQ 803 BRKQNRNB 0 S5 even
112 82 BNNRKBRQ 843 RKNRBQNB 0 S5 even
113 85 NNBBRKRQ 456 RBNNBKQR 0 S5 even
114 87 NNBRKRQB 509 RQNBKNBR 0 S5 even
115 90 NNRKBBRQ 573 RNKBNRBQ 0 S5 even
116 93 NNRBKRBQ 180 NBBRNKRQ 0 S5 even
117 94 NNRKRBBQ 113 BNQBRNKR 0 S5 even
118 101 QNBBRNKR 387 BQRNNKRB 0 S5 even
119 109 QNRBNKBR 95 NNRKRQBB 0 S5 even
120 115 BNQRNKRB 124 NBQRNKBR 0 S5 even
121 132 NBBRQNKR 480 BBQRNKNR 0 S5 even
122 134 NRBQNBKR 240 BBNRKQNR 0 S5 even
123 137 NRQBBNKR 517 RNBBQKNR 0 S5 even
124 140 NBRQNKBR 91 NNRKBRQB 0 S5 even
125 141 NRQBNKBR 574 RNKNRBBQ 0 S5 even
126 142 NRQNKBBR 446 RNNQKBBR 0 S5 even
127 158 NRNQKBBR 303 QNRKRNBB 0 S5 even
128 159 NRNQKRBB 244 NBBRKQNR 0 S5 even
129 161 BNRBNKQR 163 BNRNKQRB 0 S5 even
130 162 BNRNKBQR 499 BRQNKNRB 0 S5 even
131 167 NRBNKQRB 578 BQRNKBRN 0 S5 even
132 178 BNRNKBRQ 738 BRKNNBQR 0 S5 even
133 182 NRBNKBRQ 795 RQKNBRNB 0 S5 even
134 182 NRBNKBRQ 935 RKBRNQNB 0 S5 even
135 183 NRBNKRQB 638 RNKQRBBN 0 S5 even
136 194 BQNRKBNR 899 BRKQRNNB 0 S5 even
137 198 QNBRKBNR 772 QBBRKNRN 0 S5 even
138 214 NQBRKBNR 152 NBRNBQKR 0 S5 even
139 218 NQRKBBNR 931 BRKRNQNB 0 S5 even
140 219 NQRKBNRB 529 BRNBKQNR 0 S5 even
141 221 NQRBKNBR 271 NRKNQRBB 0 S5 even
142 225 BNRBQKNR 131 BNRQNKRB 0 S5 even
143 230 NRBQKBNR 752 BBRKNNRQ 0 S5 even
144 233 NRQBBKNR 35 BNNQRKRB 0 S5 even
145 233 NRQBBKNR 805 RKBBQNRN 0 S5 even
146 236 NBRQKNBR 194 BQNRKBNR 0 S5 even
147 239 NRQKNRBB 68 NBBNRKQR 0 S5 even
148 239 NRQKNRBB 329 NRQBBKRN 0 S5 even
149 242 BNRKQBNR 179 BNRNKRQB 0 S5 even
150 247 NRBKQNRB 79 NNRKQRBB 0 S5 even
151 250 NRKQBBNR 646 RNBKRBQN 0 S5 even
152 251 NRKQBNRB 232 NBRQBKNR 0 S5 even
153 255 NRKQNRBB 658 BRNKRBNQ 0 S5 even
154 255 NRKQNRBB 851 BRKNRNQB 0 S5 even
155 260 NBBRKNQR 349 NRKBQRBN 0 S5 even
156 263 NRBKNQRB 915 BRKRQNNB 0 S5 even
157 264 NBRKBNQR 147 BNRNQKRB 0 S5 even
158 274 BNRKNBRQ 58 NNRQBBKR 0 S5 even
159 278 NRBKNBRQ 68 NBBNRKQR 0 S5 even
160 279 NRBKNRQB 835 BRKNRQNB 0 S5 even
161 286 NRKNRBBQ 304 BBNQRKRN 0 S5 even
162 287 NRKNRQBB 847 RKNRQNBB 0 S5 even
163 295 QNBRKRNB 500 RBBQNKNR 0 S5 even
164 299 QNRKBRNB 355 BNRKRQNB 0 S5 even
165 300 QBNRKRBN 106 QNRNBBKR 0 S5 even
166 300 QBNRKRBN 844 RBKNRQBN 0 S5 even
167 301 QNRBKRBN 303 QNRKRNBB 0 S5 even
168 302 QNRKRBBN 207 QNRKNRBB 0 S5 even
169 302 QNRKRBBN 225 BNRBQKNR 0 S5 even
170 307 BNQRKRNB 484 QBBRNKNR 0 S5 even
171 310 NQBRKBRN 349 NRKBQRBN 0 S5 even
172 314 NQRKBBRN 89 NNRBBKRQ 0 S5 even
173 315 NQRKBRNB 543 RNKQNRBB 0 S5 even
174 317 NQRBKRBN 152 NBRNBQKR 0 S5 even
175 319 NQRKRNBB 456 RBNNBKQR 0 S5 even
176 323 BNRQKRNB 579 BQRNKRNB 0 S5 even
177 325 NRBBQKRN 812 RBKQNRBN 0 S5 even
178 327 NRBQKRNB 134 NRBQNBKR 0 S5 even
179 327 NRBQKRNB 300 QBNRKRBN 0 S5 even
180 327 NRBQKRNB 620 RBNQKRBN 0 S5 even
181 329 NRQBBKRN 513 BRNBQKNR 0 S5 even
182 391 QRBNNKRB 387 BQRNNKRB 0 S5 even
183 395 QRNNBKRB 919 RKBRQNNB 0 S5 even
184 396 QBRNNKBR 391 QRBNNKRB 0 S5 even
185 397 QRNBNKBR 733 RKNBQNBR 0 S5 even
186 408 RBQNBNKR 923 RKRQBNNB 0 S5 even
187 409 RQNBBNKR 831 RKNQRNBB 0 S5 even
188 417 BRNBQNKR 401 BRQBNNKR 0 S5 even
189 422 RNBQNBKR 213 NQBBRKNR 0 S5 even
190 424 RBNQBNKR 688 BBRQKNNR 0 S5 even
191 425 RNQBBNKR 119 NQBRNKRB 0 S5 even
192 427 RNQNBKRB 408 RBQNBNKR 0 S5 even
193 430 RNQNKBBR 650 RNKRBBQN 0 S5 even
194 431 RNQNKRBB 415 RQNNKRBB 0 S5 even
195 432 BBRNNQKR 400 BBRQNNKR 0 S5 even
196 437 RNBBNQKR 764 RBKNNRBQ 0 S5 even
197 438 RNBNQBKR 423 RNBQNKRB 0 S5 even
198 441 RNNBBQKR 599 RQBNKRNB 0 S5 even
199 445 RNNBQKBR 940 RBKRNQBN 0 S5 even
200 449 BRNBNKQR 179 BNRNKRQB 0 S5 even
201 450 BRNNKBQR 513 BRNBQKNR 0 S5 even
202 452 RBBNNKQR 6 QNBNRBKR 0 S5 even
203 452 RBBNNKQR 467 BRNNKRQB 0 S5 even
204 453 RNBBNKQR 799 RQKNRNBB 0 S5 even
205 455 RNBNKQRB 86 NNBRKBRQ 0 S5 even
206 456 RBNNBKQR 21 NQBBNRKR 0 S5 even
207 456 RBNNBKQR 419 BRNQNKRB 0 S5 even
208 460 RBNNKQBR 707 BRKQNNRB 0 S5 even
209 461 RNNBKQBR 551 RNBKNQRB 0 S5 even
210 466 BRNNKBRQ 577 BQRBNKRN 0 S5 even
211 471 RNBNKRQB 21 NQBBNRKR 0 S5 even
212 473 RNNBBKRQ 13 QNNBRKBR 0 S5 even
213 474 RNNKBBRQ 559 RNKNQRBB 0 S5 even
214 474 RNNKBBRQ 715 RKQNBNRB 0 S5 even
215 477 RNNBKRBQ 488 QBRNBKNR 0 S5 even
216 478 RNNKRBBQ 671 RNKRNQBB 0 S5 even
217 479 RNNKRQBB 130 BNRQNBKR 0 S5 even
218 487 QRBNKNRB 371 BNRKRNQB 0 S5 even
219 487 QRBNKNRB 434 BRNNQBKR 0 S5 even
220 491 QRNKBNRB 12 QBNNRKBR 0 S5 even
221 500 RBBQNKNR 752 BBRKNNRQ 0 S5 even
222 502 RQBNKBNR 240 BBNRKQNR 0 S5 even
223 502 RQBNKBNR 307 BNQRKRNB 0 S5 even
224 505 RQNBBKNR 641 BRNBKRQN 0 S5 even
225 509 RQNBKNBR 649 RNKBBRQN 0 S5 even
226 516 RBBNQKNR 720 BBRKNQNR 0 S5 even
227 517 RNBBQKNR 287 NRKNRQBB 0 S5 even
228 518 RNBQKBNR 815 RKQNRNBB 0 S5 even
229 520 RBNQBKNR 483 BQRNKNRB 0 S5 even
230 521 RNQBBKNR 771 BQRKNRNB 0 S5 even
231 525 RNQBKNBR 162 BNRNKBQR 0 S5 even
232 525 RNQBKNBR 282 NRKNBBRQ 0 S5 even
233 525 RNQBKNBR 738 BRKNNBQR 0 S5 even
234 527 RNQKNRBB 5 QNBBNRKR 0 S5 even
235 52 NBBNRQKR 116 NBBQRNKR -1 S7 even
236 62 NNRQKBBR 407 RQBNNKRB +1 S7 even
237 70 NNBRKBQR 658 BRNKRBNQ -1 S7 even
238 80 BBNNRKRQ 215 NQBRKNRB +1 S6 even
239 111 QNRNKRBB 107 QNRNBKRB -1 S6 even
240 205 QNRBKNBR 870 QRBKRBNN +1 S6 even
241 217 NQRBBKNR 193 BQNBRKNR -1 S6 even
242 440 RBNNBQKR 463 RNNKQRBB +1 S6 even
243 503 RQBNKNRB 498 BRQNKBNR +1 S6 even
244 7 QNBNRKRB 58 NNRQBBKR -1 S5 even
245 7 QNBNRKRB 339 BNRKQRNB +1 S5 even
246 10 QNNRBBKR 36 NBBNQRKR -1 S5 even
247 13 QNNBRKBR 200 QBNRBKNR -1 S5 even
248 30 NQNRKBBR 357 NRBBKRQN -1 S5 even
249 54 NNBRQBKR 101 QNBBRNKR +1 S5 even
250 59 NNRQBKRB 320 BBNRQKRN +1 S5 even
251 63 NNRQKRBB 60 NBNRQKBR -1 S5 even
252 71 NNBRKQRB 101 QNBBRNKR -1 S5 even
253 71 NNBRKQRB 501 RQBBNKNR +1 S5 even
254 85 NNBBRKRQ 68 NBBNRKQR +1 S5 even
255 122 NQRNBBKR 39 NNBQRKRB +1 S5 even
256 126 NQRNKBBR 55 NNBRQKRB +1 S5 even
257 138 NRQNBBKR 119 NQBRNKRB +1 S5 even
258 143 NRQNKRBB 134 NRBQNBKR +1 S5 even
259 158 NRNQKBBR 427 RNQNBKRB +1 S5 even
260 160 BBNRNKQR 209 BNQBRKNR +1 S5 even
261 161 BNRBNKQR 91 NNRKBRQB -1 S5 even
262 179 BNRNKRQB 577 BQRBNKRN +1 S5 even
263 221 NQRBKNBR 505 RQNBBKNR -1 S5 even
264 264 NBRKBNQR 124 NBQRNKBR +1 S5 even
265 264 NBRKBNQR 853 RKBBNRNQ -1 S5 even
266 277 NRBBKNRQ 567 RNBKNRQB +1 S5 even
267 278 NRBKNBRQ 292 QBBNRKRN -1 S5 even
268 279 NRBKNRQB 733 RKNBQNBR +1 S5 even
269 282 NRKNBBRQ 146 BNRNQBKR -1 S5 even
270 282 NRKNBBRQ 581 QRBBNKRN -1 S5 even
271 300 QBNRKRBN 57 NNRBBQKR -1 S5 even
272 300 QBNRKRBN 394 QRNNBBKR +1 S5 even
273 315 NQRKBRNB 442 RNNQBBKR +1 S5 even
274 325 NRBBQKRN 279 NRBKNRQB +1 S5 even
275 391 QRBNNKRB 119 NQBRNKRB -1 S5 even
276 414 RQNNKBBR 900 RBBKQRNN -1 S5 even
277 415 RQNNKRBB 425 RNQBBNKR -1 S5 even
278 418 BRNQNBKR 54 NNBRQBKR -1 S5 even
279 423 RNBQNKRB 868 QBBRKRNN -1 S5 even
280 430 RNQNKBBR 107 QNRNBKRB -1 S5 even
281 439 RNBNQKRB 56 NBNRBQKR -1 S5 even
282 440 RBNNBQKR 726 RKBNQBNR +1 S5 even
283 446 RNNQKBBR 425 RNQBBNKR -1 S5 even
284 492 QBRNKNBR 84 NBBNRKRQ +1 S5 even
285 500 RBBQNKNR 731 RKNQBNRB -1 S5 even
286 526 RNQKNBBR 640 BBRNKRQN -1 S5 even
287 526 RNQKNBBR 924 RBKRQNBN -1 S5 even
288 15 QNNRKRBB 613 RNBBQKRN -2 S7 even
289 74 NNRKBBQR 365 NRKBRQBN +2 S7 even
290 472 RBNNBKRQ 596 RBBQNKRN -2 S7 even
291 9 QNNBBRKR 902 RKBQRBNN -2 S6 even
292 41 NNQBBRKR 394 QRNNBBKR +2 S6 even
293 61 NNRBQKBR 284 NBRKNRBQ -2 S6 even
294 63 NNRQKRBB 609 BRNBQKRN -2 S6 even
295 155 NRNQBKRB 722 BRKNQBNR -2 S6 even
296 163 BNRNKQRB 388 QBBRNNKR -2 S6 even
297 184 NBRNBKRQ 118 NQBRNBKR -2 S6 even
298 215 NQBRKNRB 192 BBQNRKNR -2 S6 even
299 218 NQRKBBNR 356 NBBRKRQN -2 S6 even
300 314 NQRKBBRN 895 RQKRNNBB -2 S6 even
301 13 QNNBRKBR 148 NBBRNQKR +2 S5 even
302 14 QNNRKBBR 178 BNRNKBRQ +2 S5 even
303 28 NBQNRKBR 580 QBBRNKRN -2 S5 even
304 31 NQNRKRBB 532 RBBNKQNR -2 S5 even
305 37 NNBBQRKR 424 RBNQBNKR +2 S5 even
306 41 NNQBBRKR 21 NQBBNRKR +2 S5 even
307 47 NNQRKRBB 305 BNQBRKRN -2 S5 even
308 59 NNRQBKRB 26 NQNRBBKR -2 S5 even
309 60 NBNRQKBR 340 NBBRKQRN +2 S5 even
310 64 BBNNRKQR 387 BQRNNKRB +2 S5 even
311 97 BQNBRNKR 755 BRKNNRQB +2 S5 even
312 107 QNRNBKRB 152 NBRNBQKR +2 S5 even
313 108 QBNRNKBR 854 RKBNRBNQ -2 S5 even
314 110 QNRNKBBR 552 RBNKBNQR -2 S5 even
315 173 NRNBKQBR 795 RQKNBRNB +2 S5 even
316 199 QNBRKNRB 267 NRKNBQRB -2 S5 even
317 212 NBBQRKNR 688 BBRQKNNR +2 S5 even
318 222 NQRKNBBR 69 NNBBRKQR +2 S5 even
319 230 NRBQKBNR 621 RNQBKRBN +2 S5 even
320 237 NRQBKNBR 606 RQNKRBBN -2 S5 even
321 239 NRQKNRBB 786 BRQKNBRN -2 S5 even
322 260 NBBRKNQR 285 NRKBNRBQ +2 S5 even
323 263 NRBKNQRB 440 RBNNBQKR -2 S5 even
324 271 NRKNQRBB 831 RKNQRNBB +2 S5 even
325 291 BQNRKRNB 484 QBBRNKNR -2 S5 even
326 292 QBBNRKRN 758 RKBNNBRQ +2 S5 even
327 293 QNBBRKRN 402 BRQNNBKR -2 S5 even
328 301 QNRBKRBN 795 RQKNBRNB +2 S5 even
329 303 QNRKRNBB 21 NQBBNRKR +2 S5 even
330 402 BRQNNBKR 388 QBBRNNKR -2 S5 even
331 412 RBQNNKBR 364 NBRKRQBN -2 S5 even
332 433 BRNBNQKR 497 BRQBNKNR -2 S5 even
333 449 BRNBNKQR 488 QBRNBKNR +2 S5 even
334 455 RNBNKQRB 662 RNBKRBNQ +2 S5 even
335 462 RNNKQBBR 201 QNRBBKNR -2 S5 even
336 470 RNBNKBRQ 325 NRBBQKRN +2 S5 even
337 485 QRBBNKNR 321 BNRBQKRN +2 S5 even
338 488 QBRNBKNR 752 BBRKNNRQ -2 S5 even
339 491 QRNKBNRB 322 BNRQKBRN -2 S5 even
340 502 RQBNKBNR 72 NBNRBKQR -2 S5 even
341 504 RBQNBKNR 34 BNNQRBKR -2 S5 even
342 509 RQNBKNBR 68 NBBNRKQR +2 S5 even
343 514 BRNQKBNR 256 BBNRKNQR -2 S5 even
344 522 RNQKBBNR 251 NRKQBNRB -2 S5 even
345 62 NNRQKBBR 543 RNKQNRBB -3 S7 even
346 335 NRQKRNBB 37 NNBBQRKR +3 S7 even
347 459 RNNKBQRB 719 RKQNNRBB +3 S7 even
348 518 RNBQKBNR 677 QRBBKNNR +3 S7 even
349 76 NBNRKQBR 826 RKNQBBRN +3 S6 even
350 450 BRNNKBQR 571 RNKNBRQB -3 S6 even
351 509 RQNBKNBR 581 QRBBNKRN -3 S6 even
352 1 BQNBNRKR 834 BRKNRBQN +3 S5 even
353 9 QNNBBRKR 709 RKBBQNNR -3 S5 even
354 14 QNNRKBBR 641 BRNBKRQN -3 S5 even
355 26 NQNRBBKR 104 QBNRBNKR +3 S5 even
356 27 NQNRBKRB 321 BNRBQKRN +3 S5 even
357 29 NQNBRKBR 390 QRBNNBKR -3 S5 even
358 29 NQNBRKBR 723 BRKNQNRB -3 S5 even
359 33 BNNBQRKR 144 BBNRNQKR -3 S5 even
360 39 NNBQRKRB 289 BQNBRKRN -3 S5 even
361 41 NNQBBRKR 927 RKRQNNBB +3 S5 even
362 44 NBNQRKBR 392 QBRNBNKR +3 S5 even
363 58 NNRQBBKR 743 RKBNNQRB -3 S5 even
364 61 NNRBQKBR 199 QNBRKNRB -3 S5 even
365 65 BNNBRKQR 616 RBNQBKRN +3 S5 even
366 66 BNNRKBQR 297 QNRBBKRN +3 S5 even
367 70 NNBRKBQR 348 NBRKQRBN -3 S5 even
368 85 NNBBRKRQ 76 NBNRKQBR +3 S5 even
369 127 NQRNKRBB 224 BBNRQKNR +3 S5 even
370 139 NRQNBKRB 419 BRNQNKRB +3 S5 even
371 150 NRBNQBKR 421 RNBBQNKR +3 S5 even
372 152 NBRNBQKR 758 RKBNNBRQ -3 S5 even
373 161 BNRBNKQR 929 BRKBRNQN +3 S5 even
374 162 BNRNKBQR 703 RQKNNRBB -3 S5 even
375 217 NQRBBKNR 226 BNRQKBNR -3 S5 even
376 242 BNRKQBNR 723 BRKNQNRB +3 S5 even
377 252 NBRKQNBR 59 NNRQBKRB -3 S5 even
378 254 NRKQNBBR 738 BRKNNBQR +3 S5 even
379 257 BNRBKNQR 279 NRBKNRQB +3 S5 even
380 257 BNRBKNQR 572 RBNKNRBQ +3 S5 even
381 295 QNBRKRNB 751 RKNNQRBB +3 S5 even
382 320 BBNRQKRN 275 BNRKNRQB +3 S5 even
383 334 NRQKRBBN 557 RNKBNQBR -3 S5 even
384 415 RQNNKRBB 139 NRQNBKRB +3 S5 even
385 431 RNQNKRBB 72 NBNRBKQR +3 S5 even
386 437 RNBBNQKR 488 QBRNBKNR +3 S5 even
387 439 RNBNQKRB 156 NBRNQKBR +3 S5 even
388 439 RNBNQKRB 518 RNBQKBNR +3 S5 even
389 439 RNBNQKRB 521 RNQBBKNR +3 S5 even
390 441 RNNBBQKR 129 BNRBQNKR +3 S5 even
391 452 RBBNNKQR 40 NBNQBRKR +3 S5 even
392 456 RBNNBKQR 957 RKRBNNBQ +3 S5 even
393 458 RNNKBBQR 505 RQNBBKNR -3 S5 even
394 468 RBBNNKRQ 679 QRBKNNRB +3 S5 even
395 469 RNBBNKRQ 207 QNRKNRBB -3 S5 even
396 469 RNBBNKRQ 392 QBRNBNKR +3 S5 even
397 477 RNNBKRBQ 775 QRBKNRNB -3 S5 even
398 479 RNNKRQBB 675 BQRKNNRB +3 S5 even
399 481 BQRBNKNR 385 BQRBNNKR +3 S5 even
400 486 QRBNKBNR 436 RBBNNQKR +3 S5 even
401 488 QBRNBKNR 417 BRNBQNKR -3 S5 even
402 499 BRQNKNRB 404 RBBQNNKR +3 S5 even
403 503 RQBNKNRB 512 BBRNQKNR -3 S5 even
404 507 RQNKBNRB 659 BRNKRNQB +3 S5 even
405 513 BRNBQKNR 497 BRQBNKNR -3 S5 even
406 513 BRNBQKNR 832 BBRKNRQN -3 S5 even
407 527 RNQKNRBB 275 BNRKNRQB -3 S5 even
408 71 NNBRKQRB 955 RKRNBNQB +4 S7 even
409 122 NQRNBBKR 225 BNRBQKNR -4 S7 even
410 427 RNQNBKRB 947 BRKRNNQB -4 S7 even
411 57 NNRBBQKR 104 QBNRBNKR +4 S6 even
412 123 NQRNBKRB 151 NRBNQKRB +4 S6 even
413 162 BNRNKBQR 57 NNRBBQKR -4 S6 even
414 177 BNRBNKRQ 44 NBNQRKBR -4 S6 even
415 189 NRNBKRBQ 240 BBNRKQNR -4 S6 even
416 219 NQRKBNRB 674 BQRKNBNR +4 S6 even
417 314 NQRKBBRN 66 BNNRKBQR +4 S6 even
418 398 QRNNKBBR 544 BBRNKNQR -4 S6 even
419 6 QNBNRBKR 691 BRQKNNRB -4 S5 even
420 13 QNNBRKBR 49 BNNBRQKR +4 S5 even
421 31 NQNRKRBB 573 RNKBNRBQ -4 S5 even
422 40 NBNQBRKR 497 BRQBNKNR +4 S5 even
423 51 BNNRQKRB 577 BQRBNKRN +4 S5 even
424 57 NNRBBQKR 786 BRQKNBRN +4 S5 even
425 61 NNRBQKBR 409 RQNBBNKR -4 S5 even
426 62 NNRQKBBR 297 QNRBBKRN +4 S5 even
427 62 NNRQKBBR 429 RNQBNKBR +4 S5 even
428 68 NBBNRKQR 913 BRKBRQNN +4 S5 even
429 70 NNBRKBQR 835 BRKNRQNB +4 S5 even
430 108 QBNRNKBR 180 NBBRNKRQ -4 S5 even
431 119 NQBRNKRB 387 BQRNNKRB +4 S5 even
432 138 NRQNBBKR 133 NRBBQNKR -4 S5 even
433 140 NBRQNKBR 865 BQRBKRNN +4 S5 even
434 149 NRBBNQKR 540 RBNKQNBR +4 S5 even
435 155 NRNQBKRB 105 QNRBBNKR -4 S5 even
436 162 BNRNKBQR 820 RBBKNQRN +4 S5 even
437 172 NBRNKQBR 271 NRKNQRBB +4 S5 even
438 173 NRNBKQBR 138 NRQNBBKR -4 S5 even
439 174 NRNKQBBR 663 RNBKRNQB +4 S5 even
440 186 NRNKBBRQ 545 BRNBKNQR -4 S5 even
441 191 NRNKRQBB 427 RNQNBKRB -4 S5 even
442 194 BQNRKBNR 114 BNQRNBKR +4 S5 even
443 199 QNBRKNRB 547 BRNKNQRB -4 S5 even
444 222 NQRKNBBR 63 NNRQKRBB +4 S5 even
445 232 NBRQBKNR 34 BNNQRBKR -4 S5 even
446 233 NRQBBKNR 866 BQRKRBNN +4 S5 even
447 244 NBBRKQNR 104 QBNRBNKR +4 S5 even
448 255 NRKQNRBB 270 NRKNQBBR -4 S5 even
449 257 BNRBKNQR 441 RNNBBQKR -4 S5 even
450 258 BNRKNBQR 834 BRKNRBQN -4 S5 even
451 273 BNRBKNRQ 816 BBRKNQRN +4 S5 even
452 281 NRKBBNRQ 649 RNKBBRQN +4 S5 even
453 290 BQNRKBRN 738 BRKNNBQR +4 S5 even
454 301 QNRBKRBN 458 RNNKBBQR -4 S5 even
455 313 NQRBBKRN 762 RKNNBBRQ -4 S5 even
456 318 NQRKRBBN 466 BRNNKBRQ +4 S5 even
457 327 NRBQKRNB 332 NBRQKRBN +4 S5 even
458 327 NRBQKRNB 519 RNBQKNRB +4 S5 even
459 328 NBRQBKRN 935 RKBRNQNB +4 S5 even
460 329 NRQBBKRN 53 NNBBRQKR -4 S5 even
461 395 QRNNBKRB 771 BQRKNRNB -4 S5 even
462 408 RBQNBNKR 240 BBNRKQNR -4 S5 even
463 411 RQNNBKRB 147 BNRNQKRB +4 S5 even
464 415 RQNNKRBB 595 BRQNKRNB -4 S5 even
465 419 BRNQNKRB 131 BNRQNKRB -4 S5 even
466 427 RNQNBKRB 233 NRQBBKNR +4 S5 even
467 429 RNQBNKBR 831 RKNQRNBB +4 S5 even
468 435 BRNNQKRB 580 QBBRNKRN -4 S5 even
469 441 RNNBBQKR 200 QBNRBKNR -4 S5 even
470 445 RNNBQKBR 834 BRKNRBQN -4 S5 even
471 452 RBBNNKQR 462 RNNKQBBR -4 S5 even
472 457 RNNBBKQR 134 NRBQNBKR -4 S5 even
473 469 RNBBNKRQ 391 QRBNNKRB +4 S5 even
474 473 RNNBBKRQ 503 RQBNKNRB -4 S5 even
475 485 QRBBNKNR 768 BBQRKNRN -4 S5 even
476 492 QBRNKNBR 44 NBNQRKBR -4 S5 even
477 501 RQBBNKNR 213 NQBBRKNR -4 S5 even
478 505 RQNBBKNR 693 RQBBKNNR -4 S5 even
479 509 RQNBKNBR 436 RBBNNQKR +4 S5 even
480 516 RBBNQKNR 387 BQRNNKRB +4 S5 even
481 520 RBNQBKNR 252 NBRKQNBR -4 S5 even
482 521 RNQBBKNR 240 BBNRKQNR +4 S5 even
483 522 RNQKBBNR 931 BRKRNQNB -4 S5 even
484 14 QNNRKBBR 27 NQNRBKRB +5 S6 even
485 56 NBNRBQKR 22 NQBNRBKR +5 S6 even
486 59 NNRQBKRB 497 BRQBNKNR -5 S6 even
487 73 NNRBBKQR 926 RKRQNBBN -5 S6 even
488 74 NNRKBBQR 219 NQRKBNRB -5 S6 even
489 99 BQNRNKRB 113 BNQBRNKR +5 S6 even
490 139 NRQNBKRB 627 BRNKQRNB -5 S6 even
491 149 NRBBNQKR 364 NBRKRQBN -5 S6 even
492 182 NRBNKBRQ 583 QRBNKRNB +5 S6 even
493 194 BQNRKBNR 99 BQNRNKRB +5 S6 even
494 207 QNRKNRBB 609 BRNBQKRN +5 S6 even
495 11 QNNRBKRB 517 RNBBQKNR -5 S5 even
496 12 QBNNRKBR 479 RNNKRQBB +5 S5 even
497 15 QNNRKRBB 719 RKQNNRBB +5 S5 even
498 24 NBQNBRKR 484 QBBRNKNR +5 S5 even
499 26 NQNRBBKR 16 BBNQNRKR -5 S5 even
500 27 NQNRBKRB 488 QBRNBKNR -5 S5 even

Open data

Rating and coverage (JSON) and the full encyclopedia of every explored pair (CSV): white setup, black setup, mirror twin, stage, nodes, evaluation, depth, side, band, confidence, principal variation, FEN. CC BY 4.0, author Roman Morozov.

Morozov R. Asymmetric Chess960 balance rating. ch960.com/asym, 2026. CC BY 4.0.