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

EGTB: win in 4 half-moves

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