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 Kd5 draw
7 Kd6 draw
8 Kd7 draw
9 Ke1 draw
10 Ke2 draw
11 Kf2 draw
12 Kg1 draw
13 Kg2 draw
14 Ra8 draw
15 Rb8 draw
16 Rc7 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves