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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Kf7 draw
3 Kf8 draw
4 Rc2 draw
5 Rc3 draw
6 Rc4 draw
7 Rc6 draw
8 Rd1 draw
9 Re1 draw
10 Rf1 draw
11 Rh1 draw
12 Kg3 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Kh3 loss in 2 half-moves
17 Kh5 loss in 2 half-moves
18 Kh7 loss in 2 half-moves
19 Kh8 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rc5 loss in 2 half-moves
23 Rc7 loss in 2 half-moves
24 Rc8 loss in 2 half-moves