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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rb6 win in 5 half-moves
4 Rh4 win in 5 half-moves
5 Kf6 draw
6 Kf7 draw
7 Kf8 draw
8 Kg6 draw
9 Kgg8 draw
10 Kgh7 draw
11 Kh6 draw
12 Khg8 draw
13 Khh7 draw
14 Ra4 draw
15 Rb3 draw
16 Rb5 draw
17 Rc4 draw
18 Rd4 draw
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg4 loss in 2 half-moves