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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Rb5 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Rf8 win in 5 half-moves
6 Rg8 win in 5 half-moves
7 Rh8 win in 7 half-moves
8 Kf4 draw
9 Kf5 draw
10 Kf6 draw
11 Kg3 draw
12 Kg6 draw
13 Kgg4 draw
14 Kgh5 draw
15 Kh3 draw
16 Kh6 draw
17 Khg4 draw
18 Khh5 draw
19 Ra8 draw
20 Rb7 draw
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves