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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Kc1 win in 3 half-moves
3 Kc2 win in 3 half-moves
4 Kb2 win in 7 half-moves
5 Kd2 win in 7 half-moves
6 Rb4 win in 7 half-moves
7 Ke2 win in 9 half-moves
8 Ka2 draw
9 Kb4 draw
10 Ke1 draw
11 Ra5 draw
12 Rc4 draw
13 Rh4 draw
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves