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 Kf1 draw
3 Kf2 draw
4 Kgg1 draw
5 Kgh1 draw
6 Kgh3 draw
7 Khg1 draw
8 Khh1 draw
9 Khh3 draw
10 Ra7 draw
11 Rg8 draw
12 Rh7 draw
13 Kf3 loss in 2 half-moves
14 Kgg3 loss in 2 half-moves
15 Khg3 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves