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 Rc1 draw
3 Rc4 draw
4 Rc5 draw
5 Rc6 draw
6 Rd7 draw
7 Re7 draw
8 Rf7 draw
9 K7g7 loss in 2 half-moves
10 K7g8 loss in 2 half-moves
11 K8g7 loss in 2 half-moves
12 K8g8 loss in 2 half-moves
13 Kg6 loss in 2 half-moves
14 Kh6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rc8 loss in 2 half-moves