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 Ka7 win in 5 half-moves
4 Rc7 win in 5 half-moves
5 Rc8 win in 5 half-moves
6 Kc4 draw
7 Kc6 draw
8 Kd4 draw
9 Kd6 draw
10 Ke4 draw
11 Ke5 draw
12 Ke6 draw
13 Rc3 draw
14 Rc4 draw
15 Rc6 draw
16 Ra5 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc2 loss in 2 half-moves