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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kc1 draw
3 Kd1 draw
4 Ke1 draw
5 Ra6 draw
6 Rc6 draw
7 Rd6 draw
8 Re6 draw
9 Rf6 draw
10 Rg1 draw
11 Rg3 draw
12 Rg4 draw
13 Rg5 draw
14 Ka3 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kc3 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Ke2 loss in 2 half-moves
23 Ke3 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh6 loss in 2 half-moves