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EGTB: win in 4 half-moves

# move score
1 Kf7 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Ke7 draw
5 Kf8 draw
6 Kg1 draw
7 Kg2 draw
8 Rg6 draw
9 Rh2 draw
10 Rh5 draw
11 Rh7 draw
12 Rh8 draw
13 Ra6 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rd6 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh4 loss in 2 half-moves
21 Kh2 loss in 1 half-moves