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EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 K6e7 draw
3 K6f7 draw
4 K6g7 draw
5 K8e7 draw
6 K8f7 draw
7 K8g7 draw
8 Ke6 draw
9 Ke8 draw
10 Kg5 draw
11 Kg6 draw
12 Kg8 draw
13 Ra7 draw
14 Rb1 draw
15 Rb5 draw
16 Rb6 draw
17 Rb8 draw
18 Rf7 draw
19 Rh7 draw
20 Ke5 loss in 2 half-moves
21 Kf5 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rc7 loss in 2 half-moves
26 Rd7 loss in 2 half-moves
27 Re7 loss in 2 half-moves