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 K6g7 draw
3 K6h7 draw
4 K8g7 draw
5 K8h7 draw
6 Kg5 draw
7 Kh5 draw
8 Rg1 draw
9 Rg2 draw
10 Rg3 draw
11 Rg4 draw
12 Rg7 draw
13 Kg6 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves