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

EGTB: win in 2 half-moves

# move score
1 Rg2 win in 1 half-moves
2 Kb1 loss in 2 half-moves
3 Kc2 loss in 2 half-moves
4 Kd1 loss in 2 half-moves
5 Kd2 loss in 2 half-moves
6 Ra2 loss in 2 half-moves
7 Rb1 loss in 2 half-moves
8 Rb3 loss in 2 half-moves
9 Rc2 loss in 2 half-moves
10 Rd2 loss in 2 half-moves
11 Re2 loss in 2 half-moves
12 Rf2 loss in 2 half-moves
13 Rh2 loss in 2 half-moves
14 Rb4 loss in 1 half-moves
15 Rb5 loss in 1 half-moves
16 Rb6 loss in 1 half-moves
17 Rb7 loss in 1 half-moves
18 Rb8 loss in 1 half-moves