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 Kd7 draw
3 Kd8 draw
4 Ke8 draw
5 Kf7 draw
6 Kf8 draw
7 Ra1 draw
8 Ra6 draw
9 Ra7 draw
10 Rb2 draw
11 Kd6 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves