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

EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 K5g5 draw
3 K5g6 draw
4 K6g5 draw
5 K6g6 draw
6 Kg4 draw
7 Kh4 draw
8 Kh7 draw
9 Rd2 draw
10 Re2 draw
11 Rf2 draw
12 Rh1 draw
13 Kg7 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rh3 loss in 2 half-moves
18 Rh4 loss in 2 half-moves