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

EGTB: win in 4 half-moves

# move score
1 Rh6 win in 3 half-moves
2 Rh8 win in 3 half-moves
3 Kgg6 win in 9 half-moves
4 Ke7 draw
5 Ke8 draw
6 Kff6 draw
7 Kff8 draw
8 Kfg6 draw
9 Kfg8 draw
10 Kgf6 draw
11 Kgf8 draw
12 Kgg8 draw
13 Kh6 draw
14 Kh8 draw
15 Rh1 draw
16 Rh5 draw
17 Ke6 loss in 2 half-moves
18 Rh2 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh4 loss in 2 half-moves