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