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 K6a7 draw
5 K6b7 draw
6 K6c7 draw
7 K8a7 draw
8 K8b7 draw
9 K8c7 draw
10 Ka6 draw
11 Ka8 draw
12 Kc5 draw
13 Kc6 draw
14 Kc8 draw
15 Rc4 draw
16 Rd4 draw
17 Re4 draw
18 Rf4 draw
19 Rg7 draw
20 Rh4 draw
21 Ka5 loss in 2 half-moves
22 Kb5 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rg3 loss in 2 half-moves