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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rd4 win in 3 half-moves
3 Re4 win in 3 half-moves
4 Rf4 win in 7 half-moves
5 Rg4 win in 7 half-moves
6 Rh4 win in 7 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 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rb5 loss in 1 half-moves