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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Kh2 draw
3 Kh3 draw
4 Kh5 draw
5 Ra6 draw
6 Rg5 draw
7 Rg7 draw
8 Rg8 draw
9 Rh6 draw
10 Kg1 loss in 2 half-moves
11 Kg2 loss in 2 half-moves
12 Kg3 loss in 2 half-moves
13 Kg4 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rg4 loss in 2 half-moves