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 Ra7 draw
3 Rd1 draw
4 Rd4 draw
5 Rd5 draw
6 Rd6 draw
7 Re7 draw
8 Rf7 draw
9 K6g6 loss in 2 half-moves
10 K6g7 loss in 2 half-moves
11 K7g6 loss in 2 half-moves
12 K7g7 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kg8 loss in 2 half-moves
15 Kh5 loss in 2 half-moves
16 Kh8 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Rd8 loss in 2 half-moves