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

EGTB: win in 4 half-moves

# move score
1 Kab4 win in 3 half-moves
2 Kab5 win in 3 half-moves
3 Kab6 win in 3 half-moves
4 Rd8 win in 3 half-moves
5 Ka4 win in 13 half-moves
6 Kc6 win in 13 half-moves
7 Kd6 win in 15 half-moves
8 Ka6 draw
9 Kc4 draw
10 Kcb4 draw
11 Kcb5 draw
12 Kcb6 draw
13 Kd4 draw
14 Kd5 draw
15 Ra7 draw
16 Rb8 draw
17 Rc8 draw
18 Re8 draw
19 Rf8 draw
20 Ra6 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves