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 Ra5 draw
3 Kb7 loss in 2 half-moves
4 Kb8 loss in 2 half-moves
5 Kc2 loss in 2 half-moves
6 Kc3 loss in 2 half-moves
7 Kc4 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke4 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 Rb7 loss in 2 half-moves