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 Ra1 win in 7 half-moves
4 Kg1 draw
5 Kg3 draw
6 Kg4 draw
7 Kg5 draw
8 Kg6 draw
9 Kh1 draw
10 Kh2 draw
11 Kh3 draw
12 Kh4 draw
13 Kh6 draw
14 Ra2 draw
15 Ra6 draw
16 Ra8 draw
17 Re7 draw
18 Rf7 draw
19 Kf1 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra5 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc7 loss in 2 half-moves
27 Rd7 loss in 2 half-moves