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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Rc4 win in 3 half-moves
5 Rd4 win in 3 half-moves
6 Kc7 win in 5 half-moves
7 Kd7 win in 7 half-moves
8 Kd8 draw
9 Ra1 draw
10 Ra2 draw
11 Ra3 draw
12 Ra5 draw
13 Ra8 draw
14 Re4 draw
15 Rh4 draw
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves