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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Kb7 loss in 4 half-moves
3 Kb8 loss in 4 half-moves
4 Rg5 loss in 4 half-moves
5 Rg6 loss in 4 half-moves
6 Rg7 loss in 4 half-moves
7 Rg8 loss in 4 half-moves
8 Kc7 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Rf2 loss in 2 half-moves
12 Rg3 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rh2 loss in 2 half-moves
15 Rb2 loss in 1 half-moves
16 Rc2 loss in 1 half-moves
17 Rd2 loss in 1 half-moves
18 Re2 loss in 1 half-moves
19 Rg1 loss in 1 half-moves