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EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Kd5 draw
3 Kd6 draw
4 Kd7 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rc8 draw
9 Rd8 draw
10 Re8 draw
11 Rg8 draw
12 Rh8 draw
13 Ke1 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kf2 loss in 2 half-moves
18 Kf5 loss in 2 half-moves
19 Kf6 loss in 2 half-moves
20 Kf7 loss in 2 half-moves
21 Kg1 loss in 2 half-moves
22 Kg2 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rb7 loss in 2 half-moves