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

EGTB: win in 4 half-moves

# move score
1 Ke5 win in 3 half-moves
2 Kb8 draw
3 Kc7 draw
4 Kd7 draw
5 Kd8 draw
6 Ke3 draw
7 Kf5 draw
8 Kg4 draw
9 Kg5 draw
10 Ra4 draw
11 Rb4 draw
12 Rc4 draw
13 Rd4 draw
14 Re3 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Kb7 loss in 2 half-moves
20 Kf3 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Re1 loss in 2 half-moves
23 Re2 loss in 2 half-moves