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