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EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Ra8 draw
3 Rb8 draw
4 Rc8 draw
5 Re8 draw
6 Rf8 draw
7 Rg2 draw
8 Rg5 draw
9 Rg6 draw
10 Rg7 draw
11 Ka3 loss in 2 half-moves
12 Ka5 loss in 2 half-moves
13 Kab3 loss in 2 half-moves
14 Kab4 loss in 2 half-moves
15 Kab5 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Kcb3 loss in 2 half-moves
19 Kcb4 loss in 2 half-moves
20 Kcb5 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Kd4 loss in 2 half-moves
23 Kd5 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh8 loss in 2 half-moves