White 73 vs Black 604
White plays from setup 73 (NNRBBKQR), Black from setup 604 (RBQNKRBN). Rank 319 of 10420 verified pairs; evaluation 0 cp (White's point of view) at stage 8, depth 55.
By engine checks, the start is close to equal.
How to play with different setups
White sets up the pieces by position No. 73, Black by position No. 604, mirrored on their own side; the pawns stand as usual.
Black · No. 604
White · No. 73
Moves as usual: White starts; everything else follows the Chess960 rules.
Evaluation by stage
| Stage | Eval, cp |
|---|---|
| S0 | -17 |
| S1 | -5 |
| S2 | +4 |
| S3 | +24 |
| S4 | +16 |
| S5 | 0 |
| S6 | -7 |
| S7 | 0 |
| S8 | 0 |
Engine's main line: c2c4 f7f5 g2g3 h8g6 d2d4 c7c5 d4d5 b7b5
FEN (Shredder, castling rights by rook files): rbqnkrbn/pppppppp/8/8/8/8/PPPPPPPP/NNRBBKQR w CHaf - 0 1
Mirror twin: White 889 vs Black 268 — a different position (castling squares are fixed), not evaluated by the search.