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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rh7 win in 3 half-moves
3 K1g1 draw
4 K1g2 draw
5 K2g1 draw
6 K2g2 draw
7 Kg3 draw
8 Kh3 draw
9 Ra1 draw
10 Ra5 draw
11 Ra6 draw
12 Ra8 draw
13 Re7 draw
14 Rf7 draw
15 Ra2 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd7 loss in 2 half-moves