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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ra8 draw
3 Rb1 draw
4 Rb2 draw
5 Rb6 draw
6 Rb7 draw
7 Rc8 draw
8 Rd8 draw
9 Re8 draw
10 Rb3 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves