White 90 vs Black 49
White plays from setup 90 (NNRKBBRQ), Black from setup 49 (BNNBRQKR). Rank 394 of 10420 verified pairs; evaluation 0 cp (White's point of view) at stage 8, depth 48.
By engine checks, the start is close to equal.
How to play with different setups
White sets up the pieces by position No. 90, Black by position No. 49, mirrored on their own side; the pawns stand as usual.
Black · No. 49
White · No. 90
Moves as usual: White starts; everything else follows the Chess960 rules.
Evaluation by stage
| Stage | Eval, cp |
|---|---|
| S0 | -34 |
| S1 | +3 |
| S2 | +27 |
| S3 | +29 |
| S4 | -2 |
| S5 | 0 |
| S6 | +4 |
| S7 | -6 |
| S8 | 0 |
Engine's main line: g2g4 e7e6 d1c1 c7c5 f1g2 d7d5 e2e4 c8e7
FEN (Shredder, castling rights by rook files): bnnbrqkr/pppppppp/8/8/8/8/PPPPPPPP/NNRKBBRQ w CGeh - 0 1
Mirror twin: White 869 vs Black 907 — a different position (castling squares are fixed), not evaluated by the search.