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 Ka7 win in 5 half-moves
3 Kb4 win in 5 half-moves
4 Kb7 win in 5 half-moves
5 Ka4 win in 7 half-moves
6 Ra7 win in 7 half-moves
7 K5b5 draw
8 K5b6 draw
9 K6b5 draw
10 K6b6 draw
11 Rc8 draw
12 Rd8 draw
13 Re8 draw
14 Rf8 draw
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves