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 Ra2 win in 5 half-moves
3 Rb2 win in 5 half-moves
4 K6a7 draw
5 K8a7 draw
6 K8b7 draw
7 Ka5 draw
8 Ka6 draw
9 Ka8 draw
10 Kb5 draw
11 Rg1 draw
12 Rg3 draw
13 Rg4 draw
14 Rh2 draw
15 K6b7 loss in 2 half-moves
16 K6c7 loss in 2 half-moves
17 K8c7 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Rc2 loss in 2 half-moves
22 Rd2 loss in 2 half-moves
23 Re2 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves