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EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Ra7 draw
3 Rb7 draw
4 Rd7 draw
5 Rg1 draw
6 Rg2 draw
7 Rg3 draw
8 Rh7 draw
9 K6c7 loss in 2 half-moves
10 K6d7 loss in 2 half-moves
11 K6e7 loss in 2 half-moves
12 K8c7 loss in 2 half-moves
13 K8d7 loss in 2 half-moves
14 K8e7 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kc8 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Ke8 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg8 loss in 2 half-moves