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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 K7b7 draw
3 K8b7 draw
4 Ka6 draw
5 Kb6 draw
6 Rb1 draw
7 Rb2 draw
8 Rb3 draw
9 Rb4 draw
10 Rc8 draw
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves