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

EGTB: win in 4 half-moves

# move score
1 Rh5 win in 3 half-moves
2 Kc5 win in 5 half-moves
3 Kd4 win in 5 half-moves
4 Kd5 win in 5 half-moves
5 Kf5 win in 7 half-moves
6 Kb3 draw
7 Kb4 draw
8 Kb5 draw
9 Kf6 draw
10 Kf7 draw
11 Kg5 draw
12 Kg7 draw
13 Kh5 draw
14 Kh7 draw
15 Rh3 draw
16 Rh4 draw
17 Rh7 draw
18 Rh8 draw
19 Kc3 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rh2 loss in 2 half-moves