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 Kd2 win in 5 half-moves
4 Rb1 win in 5 half-moves
5 Rc1 win in 5 half-moves
6 Re1 win in 5 half-moves
7 Rf1 win in 5 half-moves
8 Kc4 win in 7 half-moves
9 Kd4 win in 7 half-moves
10 Kd5 win in 9 half-moves
11 Kd6 win in 9 half-moves
12 Ra3 win in 9 half-moves
13 Ra2 win in 11 half-moves
14 Kd1 win in 15 half-moves
15 Kd3 win in 17 half-moves
16 Kc6 win in 19 half-moves
17 Kb5 win in 21 half-moves
18 Kb6 draw
19 Ke1 draw
20 Ke3 draw
21 Kf1 draw
22 Kf2 draw
23 Ra5 draw
24 Ra8 draw
25 Kf3 loss in 2 half-moves
26 Ra4 loss in 2 half-moves
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