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

EGTB: win in 4 half-moves

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