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 Kd5 draw
4 Kd6 draw
5 Ra6 draw
6 Rb6 draw
7 Rc8 draw
8 Rd6 draw
9 Re6 draw
10 Rf6 draw
11 Rg6 draw
12 Rh6 draw
13 Kb4 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Rc7 loss in 2 half-moves