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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Ke7 draw
3 Ke8 draw
4 Kf7 draw
5 Kg8 draw
6 Ra5 draw
7 Ra6 draw
8 Ra8 draw
9 Rd7 draw
10 Re7 draw
11 Rg7 draw
12 Rh7 draw
13 Ka3 loss in 2 half-moves
14 Ka5 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb4 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kg7 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc7 loss in 2 half-moves