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

EGTB: win in 2 half-moves

# move score
1 Rh3 win in 1 half-moves
2 Rb2 draw
3 Kf4 loss in 2 half-moves
4 Kf5 loss in 2 half-moves
5 Kf6 loss in 2 half-moves
6 Kgg4 loss in 2 half-moves
7 Kgg6 loss in 2 half-moves
8 Kgh4 loss in 2 half-moves
9 Kgh6 loss in 2 half-moves
10 Khg4 loss in 2 half-moves
11 Khg6 loss in 2 half-moves
12 Khh4 loss in 2 half-moves
13 Khh6 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh4 loss in 2 half-moves