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

EGTB: draw

# move score
1 Kb7 draw
2 Kc7 draw
3 Kg2 draw
4 Kg3 draw
5 Kh2 draw
6 Ra1 draw
7 Ra2 draw
8 Ra3 draw
9 Ra4 draw
10 Ra7 draw
11 Kc8 loss in 2 half-moves
12 Kg4 loss in 2 half-moves
13 Kh4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ka7 loss in 1 half-moves