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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb7 win in 9 half-moves
3 Ra8 win in 13 half-moves
4 Ba5 draw
5 Bd6 draw
6 Bf4 draw
7 Bg3 draw
8 Bh2 draw
9 Nb7 draw
10 Ne6 draw
11 Rb1 draw
12 Rb2 draw
13 Rb3 draw
14 Bb6 loss in 4 half-moves
15 Rc8 loss in 4 half-moves
16 Be5 loss in 2 half-moves
17 Nc6 loss in 2 half-moves
18 Nf7 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves