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 Kb8 draw
3 Kc7 draw
4 Kd8 draw
5 Kg1 draw
6 Kg2 draw
7 Kg3 draw
8 Kh1 draw
9 Kh3 draw
10 Ra1 draw
11 Ra3 draw
12 Ra5 draw
13 Ra6 draw
14 Ra7 draw
15 Rb2 draw
16 Rd2 draw
17 Re2 draw
18 Rf2 draw
19 Kb7 loss in 2 half-moves
20 Kd7 loss in 2 half-moves
21 Ra4 loss in 1 half-moves
22 Ra8 loss in 1 half-moves
23 Rc2 loss in 1 half-moves