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 Kb6 draw
3 Kb7 draw
4 Kc1 draw
5 Kc5 draw
6 Kc7 draw
7 Ke1 draw
8 Ra3 draw
9 Ra6 draw
10 Rb1 draw
11 Rc1 draw
12 Kc2 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Ra8 loss in 2 half-moves