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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Rg7 win in 5 half-moves
4 Rh7 win in 5 half-moves
5 K1g2 draw
6 K1h2 draw
7 K3g2 draw
8 K3h2 draw
9 Kg1 draw
10 Kg3 draw
11 Kg4 draw
12 Kh4 draw
13 Ra7 draw
14 Rb5 draw
15 Rb6 draw
16 Rb8 draw
17 Rf7 draw
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd7 loss in 2 half-moves
22 Re7 loss in 2 half-moves