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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kcd6 draw
8 Kcd7 draw
9 Ke7 draw
10 Ked6 draw
11 Ked7 draw
12 Kf6 draw
13 Kf7 draw
14 Ra8 draw
15 Rc8 draw
16 Rd8 draw
17 Re8 draw
18 Rh1 draw
19 Rh5 draw
20 Rh6 draw
21 Rh7 draw
22 Kcd5 loss in 2 half-moves
23 Ke5 loss in 2 half-moves
24 Ked5 loss in 2 half-moves
25 Kf5 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh2 loss in 2 half-moves
29 Rh3 loss in 2 half-moves
30 Rh4 loss in 2 half-moves