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EGTB: win in 4 half-moves

# move score
1 Rf3 win in 3 half-moves
2 Kd3 draw
3 Kd6 draw
4 Kd7 draw
5 Kd8 draw
6 Ke6 draw
7 Ke8 draw
8 Kf3 draw
9 Kf6 draw
10 Kf7 draw
11 Kf8 draw
12 Rg5 draw
13 Rg7 draw
14 Rh3 draw
15 Kd2 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg8 loss in 2 half-moves