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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Rg6 win in 1 half-moves
3 Rh6 win in 1 half-moves
4 Kf7 loss in 2 half-moves
5 Kf8 loss in 2 half-moves
6 Kg7 loss in 2 half-moves
7 Kh7 loss in 2 half-moves
8 Kh8 loss in 2 half-moves
9 Ra6 loss in 2 half-moves
10 Rc1 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rc5 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd6 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rc4 loss in 1 half-moves