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 Kc3 win in 7 half-moves
3 Kc4 win in 7 half-moves
4 Kc5 win in 7 half-moves
5 Ra7 win in 7 half-moves
6 Ka1 draw
7 Ka2 draw
8 Ka3 draw
9 Ka4 draw
10 Ka5 draw
11 Kb2 draw
12 Kb3 draw
13 Kb5 draw
14 Kc1 draw
15 Kc2 draw
16 Rb6 draw
17 Rb8 draw
18 Rc7 draw
19 Rd7 draw
20 Re7 draw
21 Rg7 draw
22 Rh7 draw
23 Rf7 loss in 2 half-moves