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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kcc5 win in 3 half-moves
4 Rh6 win in 3 half-moves
5 Kdd4 win in 5 half-moves
6 Rh7 win in 7 half-moves
7 Rh8 win in 7 half-moves
8 Kc6 draw
9 Kcd4 draw
10 Kd6 draw
11 Kdc5 draw
12 Ke4 draw
13 Ke5 draw
14 Ke6 draw
15 Rf4 draw
16 Rg4 draw
17 Rh5 draw
18 Kb3 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rh1 loss in 2 half-moves
24 Rh2 loss in 2 half-moves
25 Rh3 loss in 2 half-moves