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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rb2 win in 7 half-moves
3 Rb3 win in 7 half-moves
4 Rb4 win in 7 half-moves
5 Rb5 win in 7 half-moves
6 Rb1 win in 12 half-moves
7 Rd7 draw
8 Rh7 draw
9 g3 loss in 2 half-moves
10 g4 loss in 2 half-moves
11 Ne2 loss in 2 half-moves
12 Nf3 loss in 2 half-moves
13 Nh3 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves