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

EGTB: win in 20 half-moves

# move score
1 Kb5 win in 19 half-moves
2 Kb1 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kd1 draw
8 Kd6 draw
9 Kd7 draw
10 Ra4 draw
11 Ra6 draw
12 Rb1 draw
13 Kb2 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Ra8 loss in 2 half-moves