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EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 K6a7 draw
4 K8a7 draw
5 K8b7 draw
6 Ka5 draw
7 Ka6 draw
8 Ka8 draw
9 Kb5 draw
10 Kc5 draw
11 Ra1 draw
12 Rb1 draw
13 Rg2 draw
14 Rg3 draw
15 Rg4 draw
16 Rh1 draw
17 K6b7 loss in 2 half-moves
18 K6c7 loss in 2 half-moves
19 K8c7 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kc8 loss in 2 half-moves
22 Rc1 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves