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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Kd4 draw
3 Kd5 draw
4 Ke4 draw
5 Ke6 draw
6 Kf4 draw
7 Kf5 draw
8 Kf6 draw
9 Rb3 draw
10 Rc3 draw
11 Re3 draw
12 Rf1 draw
13 Rf2 draw
14 Rf4 draw
15 Kd6 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves