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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Rb4 win in 3 half-moves
6 Rd4 win in 3 half-moves
7 Rf4 win in 3 half-moves
8 Kd6 win in 5 half-moves
9 Ka6 draw
10 Ke5 draw
11 Ke7 draw
12 Kf5 draw
13 Kf6 draw
14 Kf7 draw
15 Rc4 draw
16 Re4 draw
17 Kd7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves