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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kc7 win in 3 half-moves
4 Kcc5 win in 3 half-moves
5 Kd4 win in 5 half-moves
6 Kb5 draw
7 Kd7 draw
8 Rd7 draw
9 Rd8 draw
10 Kc4 loss in 2 half-moves
11 Kdc5 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Re6 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rh6 loss in 2 half-moves