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 Rf8 win in 3 half-moves
3 Ra8 draw
4 Rd8 draw
5 Re8 draw
6 Rg8 draw
7 Rh8 draw
8 Kb6 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kf8 loss in 2 half-moves
17 Kcd6 loss in 1 half-moves
18 Kcd7 loss in 1 half-moves
19 Kcd8 loss in 1 half-moves
20 Ked6 loss in 1 half-moves
21 Ked7 loss in 1 half-moves
22 Ked8 loss in 1 half-moves