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

EGTB: win in 4 half-moves

# move score
1 Kd6 win in 3 half-moves
2 Kd7 win in 3 half-moves
3 Kd8 win in 3 half-moves
4 Rb8 win in 3 half-moves
5 Ka7 win in 7 half-moves
6 Kb7 win in 7 half-moves
7 Ra8 win in 25 half-moves
8 Ka5 draw
9 Kb5 draw
10 Kb6 draw
11 Ke6 draw
12 Kf8 draw
13 Rc8 draw
14 Rd8 draw
15 Rf8 draw
16 Kf6 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves