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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra6 win in 7 half-moves
3 K4b4 draw
4 K4b5 draw
5 K5b4 draw
6 K5b5 draw
7 Ka3 draw
8 Ka6 draw
9 Kb3 draw
10 Kb6 draw
11 Ra7 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rf8 draw
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves