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 Rg3 win in 3 half-moves
3 K1g1 draw
4 K1g2 draw
5 K2g1 draw
6 K2g2 draw
7 Kg3 draw
8 Kh3 draw
9 Rc5 draw
10 Rg2 draw
11 Rg4 draw
12 Rh5 draw
13 Ra5 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rg8 loss in 2 half-moves