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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kf4 draw
3 Kg4 draw
4 Kh4 draw
5 Kh5 draw
6 Kh6 draw
7 Ra2 draw
8 Rg1 draw
9 Rg3 draw
10 Rh2 draw
11 Kf5 loss in 2 half-moves
12 Kf6 loss in 2 half-moves
13 Kg6 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Rf2 loss in 2 half-moves