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 Rb4 win in 5 half-moves
3 Rb2 win in 7 half-moves
4 Rb3 win in 7 half-moves
5 Rb1 win in 12 half-moves
6 g3 loss in 2 half-moves
7 g4 loss in 2 half-moves
8 Ne2 loss in 2 half-moves
9 Nf3 loss in 2 half-moves
10 Nh3 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rh6 loss in 2 half-moves
19 Re6 loss in 1 half-moves