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 Kd2 win in 7 half-moves
3 Kb4 win in 9 half-moves
4 Kc3 win in 9 half-moves
5 Kd3 win in 9 half-moves
6 Kc1 win in 11 half-moves
7 Kc2 win in 11 half-moves
8 Kd4 win in 11 half-moves
9 Rb1 win in 11 half-moves
10 Kb5 win in 13 half-moves
11 Ra4 win in 13 half-moves
12 Rc1 win in 13 half-moves
13 Kc5 draw
14 Kd5 draw
15 Ra7 draw
16 Ke1 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Ra8 loss in 2 half-moves