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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kb7 win in 11 half-moves
3 Kcc8 draw
4 Ra8 draw
5 Rc8 draw
6 Rf8 draw
7 Rg8 draw
8 Rh8 draw
9 Kb8 loss in 4 half-moves
10 Kb6 loss in 2 half-moves
11 Kcc6 loss in 2 half-moves
12 Kcd6 loss in 2 half-moves
13 Kdc6 loss in 2 half-moves
14 Kdc8 loss in 2 half-moves
15 Kdd6 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Re8 loss in 2 half-moves