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 Kd6 draw
7 Kd7 draw
8 Ra5 draw
9 Rb5 draw
10 Rc5 draw
11 Re1 draw
12 Re2 draw
13 Re3 draw
14 Re6 draw
15 Re7 draw
16 Re8 draw
17 Rf5 draw
18 Rg5 draw
19 Rh5 draw
20 Kd5 loss in 2 half-moves
21 Rd5 loss in 2 half-moves
22 Re4 loss in 2 half-moves