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 Re8 win in 3 half-moves
3 Kf7 win in 5 half-moves
4 Kf8 win in 5 half-moves
5 Kg8 win in 5 half-moves
6 Kh6 win in 5 half-moves
7 Kh7 win in 5 half-moves
8 Kh8 win in 5 half-moves
9 Ra8 win in 5 half-moves
10 Rb7 win in 5 half-moves
11 Rg8 win in 5 half-moves
12 Rh8 win in 5 half-moves
13 Rb6 loss in 4 half-moves
14 Kf6 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves