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

EGTB: win in 2 half-moves

# move score
1 Rd8 win in 1 half-moves
2 K6g6 loss in 2 half-moves
3 K6g7 loss in 2 half-moves
4 K7g6 loss in 2 half-moves
5 K7g7 loss in 2 half-moves
6 Kg5 loss in 2 half-moves
7 Kg8 loss in 2 half-moves
8 Kh5 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rg8 loss in 2 half-moves