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

EGTB: win in 4 half-moves

# move score
1 Rg3 win in 3 half-moves
2 Kf3 draw
3 Kg3 draw
4 Kg6 draw
5 Kgg5 draw
6 Kgh4 draw
7 Kh3 draw
8 Kh6 draw
9 Khg5 draw
10 Khh4 draw
11 Rb1 draw
12 Rf1 draw
13 Rg2 draw
14 Rh1 draw
15 Kf4 loss in 2 half-moves
16 Kf5 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves