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

EGTB: win in 4 half-moves

# move score
1 Kg7 win in 3 half-moves
2 Re1 draw
3 Rf6 draw
4 Kg8 loss in 2 half-moves
5 Kh7 loss in 2 half-moves
6 Ra1 loss in 2 half-moves
7 Rb1 loss in 2 half-moves
8 Rc1 loss in 2 half-moves
9 Rd1 loss in 2 half-moves
10 Rf2 loss in 2 half-moves
11 Rf3 loss in 2 half-moves
12 Rf4 loss in 2 half-moves
13 Rf5 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves