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

EGTB: win in 2 half-moves

# move score
1 Rg7 win in 1 half-moves
2 Ka8 win in 3 half-moves
3 Kaa6 win in 3 half-moves
4 Kb8 draw
5 Rb8 draw
6 Ka5 loss in 2 half-moves
7 Kb5 loss in 2 half-moves
8 Kba6 loss in 2 half-moves
9 Kc5 loss in 2 half-moves
10 Kc6 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rh7 loss in 2 half-moves