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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Rc1 win in 3 half-moves
4 Kc4 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Kd2 win in 5 half-moves
7 Ra2 win in 5 half-moves
8 Ra3 win in 5 half-moves
9 Ra6 win in 5 half-moves
10 Ra4 win in 7 half-moves
11 Ra7 win in 7 half-moves
12 Rb1 win in 9 half-moves
13 Kb7 win in 11 half-moves
14 Kc3 win in 11 half-moves
15 Kd7 win in 13 half-moves
16 Kb8 win in 17 half-moves
17 Kc8 draw
18 Kd8 draw
19 Ke2 draw
20 Ke3 draw
21 Ke4 draw
22 Ra5 draw
23 Rd1 draw
24 Re1 draw
25 Rf1 draw
26 Kd4 loss in 2 half-moves
27 Kd6 loss in 2 half-moves
28 Ra8 loss in 2 half-moves
29 Rg1 loss in 2 half-moves
30 Rh1 loss in 2 half-moves