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

EGTB: win in 4 half-moves

# move score
1 Rh1 win in 3 half-moves
2 Rh3 win in 3 half-moves
3 Rh4 win in 3 half-moves
4 K1a2 draw
5 K1b2 draw
6 K3a2 draw
7 K3b2 draw
8 Ka4 draw
9 Kb1 draw
10 Kb3 draw
11 Kb4 draw
12 Ra6 draw
13 Rb6 draw
14 Rc6 draw
15 Rd6 draw
16 Rh2 draw
17 Rh5 draw
18 Re6 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves
22 Rh8 loss in 2 half-moves