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

EGTB: win in 4 half-moves

# move score
1 Rh2 win in 3 half-moves
2 Rb7 draw
3 Re7 draw
4 Rf7 draw
5 Rg7 draw
6 Rh3 draw
7 Rh4 draw
8 Rh8 draw
9 Kc2 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ke4 loss in 2 half-moves
17 Kg1 loss in 2 half-moves
18 Kg2 loss in 2 half-moves
19 Kh2 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Rh5 loss in 2 half-moves
24 Rh6 loss in 2 half-moves