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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka4 draw
3 Ka6 draw
4 Kb4 draw
5 Kb5 draw
6 Ke7 draw
7 Kf7 draw
8 Kg7 draw
9 Kg8 draw
10 Ra8 draw
11 Rb8 draw
12 Rc8 draw
13 Rd8 draw
14 Re1 draw
15 Re2 draw
16 Re6 draw
17 Re7 draw
18 Re3 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Re5 loss in 2 half-moves