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 Kc5 draw
5 Kc7 draw
6 Kd6 draw
7 Kd7 draw
8 Rc7 draw
9 Rd8 draw
10 Re8 draw
11 Rf8 draw
12 Kd5 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves