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 draw
3 Kcd6 draw
4 Ke6 draw
5 Ked6 draw
6 Ra1 draw
7 Ra7 draw
8 Rg6 draw
9 Rh6 draw
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Kc8 loss in 2 half-moves
13 Kcd7 loss in 2 half-moves
14 Kcd8 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Ked7 loss in 2 half-moves
17 Ked8 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Kf8 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra5 loss in 2 half-moves
25 Ra8 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rc6 loss in 2 half-moves
28 Rd6 loss in 2 half-moves
29 Re6 loss in 2 half-moves
30 Rf6 loss in 2 half-moves