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

EGTB: win in 16 half-moves

# move score
1 Kb8 win in 15 half-moves
2 Re8 draw
3 Rf8 draw
4 Rg8 draw
5 K5a6 loss in 2 half-moves
6 K5b6 loss in 2 half-moves
7 K7a6 loss in 2 half-moves
8 K7b6 loss in 2 half-moves
9 Ka4 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves