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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Ka7 draw
3 Kb8 draw
4 Kc4 draw
5 Kd2 draw
6 Kd4 draw
7 Ke2 draw
8 Ke3 draw
9 Ke4 draw
10 Rc6 draw
11 Rd4 draw
12 Rd5 draw
13 Rd7 draw
14 Rd8 draw
15 Re6 draw
16 Rf6 draw
17 Rg6 draw
18 Rh6 draw
19 Kc2 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Rb6 loss in 2 half-moves