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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb5 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Rc3 draw
7 Rg3 draw
8 g4 loss in 2 half-moves
9 Ra3 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rd3 loss in 2 half-moves
13 Re3 loss in 2 half-moves
14 Rf3 loss in 2 half-moves
15 Rh3 loss in 2 half-moves
16 g3 loss in 1 half-moves