Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 N6b7 loss in 2 half-moves
3 N6f7 loss in 2 half-moves
4 N8b7 loss in 2 half-moves
5 N8f7 loss in 2 half-moves
6 Nb5 loss in 2 half-moves
7 Nc4 loss in 2 half-moves
8 Nc6 loss in 2 half-moves
9 Nc8 loss in 2 half-moves
10 Ne4 loss in 2 half-moves
11 Ne6 loss in 2 half-moves
12 Ne8 loss in 2 half-moves
13 Nf5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rb2 loss in 1 half-moves