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

EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Rg8 win in 3 half-moves
4 Ra3 draw
5 Rb3 draw
6 Rd3 draw
7 Rg4 draw
8 Rg7 draw
9 K6a7 loss in 2 half-moves
10 K6b7 loss in 2 half-moves
11 K6c7 loss in 2 half-moves
12 K8a7 loss in 2 half-moves
13 K8b7 loss in 2 half-moves
14 K8c7 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Ka6 loss in 2 half-moves
17 Ka8 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kc8 loss in 2 half-moves
22 Rc3 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rf3 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rh3 loss in 2 half-moves