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 Kg1 draw
3 Kg2 draw
4 Kg4 draw
5 Kg5 draw
6 Kg6 draw
7 Kh2 draw
8 Kh4 draw
9 Kh6 draw
10 Rc1 draw
11 Rc2 draw
12 Rc3 draw
13 Rc8 draw
14 Rd7 draw
15 Re7 draw
16 Rf7 draw
17 Rh7 draw
18 Ra7 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rc6 loss in 2 half-moves