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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Rd1 win in 3 half-moves
3 Kc4 win in 7 half-moves
4 Kd2 win in 7 half-moves
5 Kd4 win in 7 half-moves
6 Kd5 win in 7 half-moves
7 Kd6 win in 7 half-moves
8 Ra3 win in 7 half-moves
9 Rb1 win in 7 half-moves
10 Rc1 win in 7 half-moves
11 Re1 win in 7 half-moves
12 Kc6 win in 9 half-moves
13 Ra4 win in 11 half-moves
14 Kd1 win in 15 half-moves
15 Ke1 win in 19 half-moves
16 Ra2 win in 21 half-moves
17 Kb5 draw
18 Kb6 draw
19 Kd3 draw
20 Ke3 draw
21 Kf1 draw
22 Kf2 draw
23 Kf3 draw
24 Ra5 draw
25 Ra8 draw
26 Rf1 draw
27 Ra6 loss in 2 half-moves
28 Ra7 loss in 2 half-moves
29 Rg1 loss in 2 half-moves
30 Rh1 loss in 2 half-moves