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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ka4 draw
3 Ka5 draw
4 Kb4 draw
5 Kc4 draw
6 Rd2 draw
7 Re2 draw
8 Rf2 draw
9 Rg1 draw
10 Rg5 draw
11 Rg6 draw
12 Rh2 draw
13 Ka6 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rc2 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves