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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd7 draw
3 Kf6 draw
4 Kf7 draw
5 Rc8 draw
6 Re8 draw
7 Rf8 draw
8 Rg6 draw
9 Rh8 draw
10 Kf8 loss in 18 half-moves
11 Kd8 loss in 4 half-moves
12 Ke6 loss in 4 half-moves
13 Ke8 loss in 4 half-moves
14 Rg7 loss in 4 half-moves
15 Kd6 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves