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EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Ra5 draw
3 Rb5 draw
4 Rc5 draw
5 Re5 draw
6 Rg3 draw
7 Rg4 draw
8 Rg8 draw
9 Ba3 loss in 2 half-moves
10 Bb2 loss in 2 half-moves
11 Bd2 loss in 2 half-moves
12 Be3 loss in 2 half-moves
13 Bf4 loss in 2 half-moves
14 Nf2 loss in 2 half-moves
15 Ng3 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh5 loss in 2 half-moves
21 Rg2 loss in 1 half-moves