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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Kb6 draw
6 Kb7 draw
7 Kd5 draw
8 Kd6 draw
9 Ke6 draw
10 Kf5 draw
11 Kf6 draw
12 Ra8 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Rh3 draw
17 Rh4 draw
18 Rh5 draw
19 Rh6 draw
20 Rh7 draw
21 Kd4 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh1 loss in 2 half-moves
27 Rh2 loss in 2 half-moves