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 Kc3 win in 5 half-moves
3 Rb4 win in 5 half-moves
4 Kd3 win in 7 half-moves
5 Kd4 win in 7 half-moves
6 Kb3 win in 13 half-moves
7 Ke3 win in 13 half-moves
8 Kf3 win in 13 half-moves
9 Ka1 draw
10 Ka2 draw
11 Ka3 draw
12 Kb1 draw
13 Kc1 draw
14 Kc2 draw
15 Kf4 draw
16 Ra6 draw
17 Rb5 draw
18 Rc6 draw
19 Rh6 draw
20 Kd5 loss in 2 half-moves
21 Ke5 loss in 2 half-moves
22 Kf5 loss in 2 half-moves
23 Rb7 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rd6 loss in 2 half-moves
26 Re6 loss in 2 half-moves
27 Rf6 loss in 2 half-moves
28 Rg6 loss in 2 half-moves