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

EGTB: draw

# move score
1 Kb7 draw
2 Kb8 draw
3 Kc7 draw
4 Kd7 draw
5 Kd8 draw
6 Ra2 draw
7 Ra3 draw
8 Ra5 draw
9 Ra6 draw
10 Ra8 draw
11 Re7 draw
12 Rf7 draw
13 Rg7 draw
14 Rh7 draw
15 Ra1 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves