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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kcd7 draw
3 Kcd8 draw
4 Ke7 draw
5 Ked7 draw
6 Ked8 draw
7 Kf7 draw
8 Kf8 draw
9 Ra6 draw
10 Rc6 draw
11 Rd6 draw
12 Rg1 draw
13 Rg7 draw
14 Rg8 draw
15 Rh6 draw
16 Kb6 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Re6 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Kd6 loss in 1 half-moves