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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Re7 draw
5 K3f4 loss in 2 half-moves
6 K3g4 loss in 2 half-moves
7 K3h4 loss in 2 half-moves
8 K5f4 loss in 2 half-moves
9 K5g4 loss in 2 half-moves
10 K5h4 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kf3 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Kg2 loss in 2 half-moves
16 Kg6 loss in 2 half-moves
17 Kh2 loss in 2 half-moves
18 Kh3 loss in 2 half-moves
19 Kh5 loss in 2 half-moves
20 Kh6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh7 loss in 2 half-moves