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

EGTB: draw

# move score
1 Ka5 draw
2 Ka6 draw
3 Ka7 draw
4 Kb5 draw
5 Kc5 draw
6 Kc6 draw
7 Kc7 draw
8 Ra8 draw
9 Rb7 draw
10 Rd8 draw
11 Re8 draw
12 Rf8 draw
13 Kb7 loss in 22 half-moves
14 Rc8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves