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

EGTB: draw

# move score
1 Kb6 draw
2 Kb7 draw
3 Kb8 draw
4 Kd7 draw
5 Kd8 draw
6 Ra8 draw
7 Rb8 draw
8 Rd8 draw
9 Re8 draw
10 Rf8 draw
11 Rg8 draw
12 Rh8 draw
13 Kc6 loss in 2 half-moves
14 Kd6 loss in 2 half-moves