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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Kc5 win in 5 half-moves
4 Kc6 win in 5 half-moves
5 Kc7 win in 5 half-moves
6 Kf5 win in 5 half-moves
7 Kf6 win in 5 half-moves
8 Kf7 win in 5 half-moves
9 Rc6 win in 9 half-moves
10 Kdd5 draw
11 Kdd7 draw
12 Kde5 draw
13 Kde7 draw
14 Ked5 draw
15 Ked7 draw
16 Kee5 draw
17 Kee7 draw
18 Ra6 draw
19 Rb3 draw
20 Rb4 draw
21 Rb8 draw
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves