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 Rd8 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Kc2 win in 5 half-moves
5 Kc7 win in 5 half-moves
6 Kd2 win in 5 half-moves
7 Kd7 win in 5 half-moves
8 Rc7 win in 5 half-moves
9 Kd5 win in 7 half-moves
10 Kd6 win in 7 half-moves
11 Kb2 draw
12 Kb3 draw
13 Kb4 draw
14 Kb5 draw
15 Kb6 draw
16 Kc4 draw
17 Kc5 draw
18 Kd3 draw
19 Kd4 draw
20 Ra8 draw
21 Re8 draw
22 Rf8 draw
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves