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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Bf2 draw
3 Bg3 draw
4 Ra5 draw
5 Rg6 draw
6 Rg7 draw
7 Rg8 draw
8 Rh5 draw
9 Nb8 loss in 4 half-moves
10 Nc7 loss in 4 half-moves
11 Rf5 loss in 4 half-moves
12 Be1 loss in 2 half-moves
13 Nb4 loss in 2 half-moves
14 Nc5 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves