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 K6a7 draw
3 K8a7 draw
4 Ka5 draw
5 Kb8 draw
6 Rb8 draw
7 Rc1 draw
8 Rc2 draw
9 Rc3 draw
10 Rc4 draw
11 Rh8 draw
12 K6b7 loss in 2 half-moves
13 K8b7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves