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EGTB: win in 4 half-moves

# move score
1 Rd6 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Ke7 draw
5 Kef7 draw
6 Kef8 draw
7 Kgf7 draw
8 Kgf8 draw
9 Ra6 draw
10 Rb1 draw
11 Rb7 draw
12 Rb8 draw
13 Rc6 draw
14 Re6 draw
15 Rf6 draw
16 Kg6 loss in 2 half-moves
17 Kg8 loss in 2 half-moves
18 Kh6 loss in 2 half-moves
19 Kh7 loss in 2 half-moves
20 Kh8 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb5 loss in 2 half-moves
25 Rg6 loss in 2 half-moves
26 Rh6 loss in 2 half-moves
27 Kf6 loss in 1 half-moves