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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kc6 win in 3 half-moves
3 Ke6 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Rc7 win in 3 half-moves
6 Kb6 win in 7 half-moves
7 Kb7 win in 7 half-moves
8 Kb8 win in 7 half-moves
9 Kc4 win in 7 half-moves
10 Kd6 win in 7 half-moves
11 Ka6 draw
12 Ka8 draw
13 Kd4 draw
14 Ke4 draw
15 Ke5 draw
16 Rd6 draw
17 Rd8 draw
18 Re7 draw
19 Rf7 draw
20 Rg7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves