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 Kc6 win in 3 half-moves
3 K8b8 win in 11 half-moves
4 Ra7 win in 11 half-moves
5 Ra8 win in 11 half-moves
6 K7b7 win in 15 half-moves
7 K7b8 draw
8 K8b7 draw
9 Rh5 draw
10 K7d7 loss in 2 half-moves
11 K7d8 loss in 2 half-moves
12 K8d7 loss in 2 half-moves
13 K8d8 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rd5 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rg5 loss in 2 half-moves