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EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Rh7 win in 3 half-moves
3 Ra1 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Rd7 draw
8 Re7 draw
9 Rg7 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Ke3 loss in 2 half-moves
13 Kf1 loss in 2 half-moves
14 Kf3 loss in 2 half-moves
15 Kfg1 loss in 2 half-moves
16 Kfg2 loss in 2 half-moves
17 Kfg3 loss in 2 half-moves
18 Kh1 loss in 2 half-moves
19 Kh3 loss in 2 half-moves
20 Khg1 loss in 2 half-moves
21 Khg2 loss in 2 half-moves
22 Khg3 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Ra8 loss in 2 half-moves
26 Rb7 loss in 2 half-moves
27 Rc7 loss in 2 half-moves