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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Rc6 draw
3 Rd6 draw
4 Re6 draw
5 Rf2 draw
6 Rf3 draw
7 Rf7 draw
8 Rf8 draw
9 Rh6 draw
10 Ka2 loss in 2 half-moves
11 Kb1 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Ke1 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rg6 loss in 2 half-moves