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EGTB: win in 4 half-moves

# move score
1 Rf2 win in 3 half-moves
2 Ra4 draw
3 Ra5 draw
4 Ra6 draw
5 Ra7 draw
6 Rd2 draw
7 Re2 draw
8 Kf1 loss in 2 half-moves
9 Kf2 loss in 2 half-moves
10 Kf3 loss in 2 half-moves
11 Kg3 loss in 2 half-moves
12 Kgg1 loss in 2 half-moves
13 Kgh2 loss in 2 half-moves
14 Kh3 loss in 2 half-moves
15 Khg1 loss in 2 half-moves
16 Khh2 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rc2 loss in 2 half-moves