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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kc5 draw
5 Kc7 draw
6 Kd5 draw
7 Ke1 draw
8 Kf2 draw
9 Kg2 draw
10 Ra2 draw
11 Ra4 draw
12 Ra6 draw
13 Rb1 draw
14 Rc1 draw
15 Rd1 draw
16 Kd6 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ra3 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
23 Re1 loss in 2 half-moves
24 Kg1 loss in 1 half-moves