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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 g7 draw
3 Rb4 draw
4 Rb7 draw
5 Rb8 draw
6 Na2 loss in 2 half-moves
7 Nb3 loss in 2 half-moves
8 Nd3 loss in 2 half-moves
9 Ne2 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb6 loss in 2 half-moves