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

EGTB: win in 2 half-moves

# move score
1 Rf8 win in 1 half-moves
2 K6b6 win in 7 half-moves
3 K6b7 win in 7 half-moves
4 K7b7 win in 11 half-moves
5 Kb8 win in 13 half-moves
6 K7b6 loss in 2 half-moves
7 Ka5 loss in 2 half-moves
8 Kb5 loss in 2 half-moves
9 Rb8 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves