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

EGTB: draw

# move score
1 Ka7 draw
2 Kb7 draw
3 Kb8 draw
4 Kd2 draw
5 Kd3 draw
6 Kd4 draw
7 Ke2 draw
8 Ke4 draw
9 Kf2 draw
10 Kf3 draw
11 Kf4 draw
12 Rc8 draw
13 Rd8 draw
14 Re4 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Rf8 draw
19 Rg8 draw
20 Rh8 draw
21 Rb8 loss in 2 half-moves