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 Ra7 draw
3 Kb4 loss in 2 half-moves
4 Kb5 loss in 2 half-moves
5 Kc4 loss in 2 half-moves
6 Kc6 loss in 2 half-moves
7 Kcd4 loss in 2 half-moves
8 Kcd5 loss in 2 half-moves
9 Kcd6 loss in 2 half-moves
10 Ke4 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ked4 loss in 2 half-moves
13 Ked5 loss in 2 half-moves
14 Ked6 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Ra6 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Rb5 loss in 2 half-moves