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

EGTB: win in 10 half-moves

# move score
1 Kb6 win in 9 half-moves
2 Ra7 win in 9 half-moves
3 Kb8 win in 13 half-moves
4 Kc6 draw
5 Kc7 draw
6 Kc8 draw
7 Ra4 draw
8 Ra5 draw
9 Ra6 draw
10 Ra8 draw
11 Ka6 loss in 4 half-moves
12 Ka7 loss in 4 half-moves
13 Ka8 loss in 4 half-moves
14 Ka1 loss in 2 half-moves
15 Ka3 loss in 2 half-moves
16 Kb1 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Kc1 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Ra3 loss in 2 half-moves