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

EGTB: win in 4 half-moves

# move score
1 Rh4 win in 3 half-moves
2 Ka4 win in 5 half-moves
3 Kb4 win in 5 half-moves
4 Ra7 win in 5 half-moves
5 Rb7 win in 5 half-moves
6 K1a2 draw
7 K1b2 draw
8 K3a2 draw
9 K3b2 draw
10 Kb1 draw
11 Kb3 draw
12 Rc7 draw
13 Rd7 draw
14 Rh3 draw
15 Rh5 draw
16 Rh6 draw
17 Rh8 draw
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rh2 loss in 2 half-moves