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 K4g5 draw
3 K4h5 draw
4 K6g5 draw
5 K6h5 draw
6 Kg3 draw
7 Kg4 draw
8 Kg6 draw
9 Kg7 draw
10 Kh3 draw
11 Kh7 draw
12 Ra2 draw
13 Rb1 draw
14 Rb3 draw
15 Rb8 draw
16 Rf2 draw
17 Rh2 draw
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rc2 loss in 2 half-moves
23 Rd2 loss in 2 half-moves
24 Re2 loss in 2 half-moves