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

EGTB: draw

# move score
1 Kb5 draw
2 Kb6 draw
3 Kb7 draw
4 Kc7 draw
5 Kd5 draw
6 Kd6 draw
7 Kd7 draw
8 Ra8 draw
9 Rb8 draw
10 Rd8 draw
11 Kc5 loss in 4 half-moves
12 Rc7 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves