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