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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kc7 win in 5 half-moves
3 Kbb8 win in 11 half-moves
4 Kc8 loss in 4 half-moves
5 Kaa6 loss in 2 half-moves
6 Kab6 loss in 2 half-moves
7 Kab8 loss in 2 half-moves
8 Kba6 loss in 2 half-moves
9 Kbb6 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves