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 Rh5 win in 3 half-moves
3 Rh6 win in 3 half-moves
4 Ra8 win in 5 half-moves
5 Ka1 draw
6 Ka2 draw
7 Ka4 draw
8 Ka6 draw
9 Kb2 draw
10 Kb4 draw
11 Kb5 draw
12 Kc1 draw
13 Kc2 draw
14 Rc8 draw
15 Rh4 draw
16 Rh7 draw
17 Kb6 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh1 loss in 2 half-moves
23 Rh2 loss in 2 half-moves
24 Rh3 loss in 2 half-moves