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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Rf7 win in 3 half-moves
3 Rb3 draw
4 Rc3 draw
5 Rd3 draw
6 Re3 draw
7 Rf4 draw
8 Rf5 draw
9 Ke7 loss in 2 half-moves
10 Ke8 loss in 2 half-moves
11 Kf7 loss in 2 half-moves
12 Kfg7 loss in 2 half-moves
13 Kfg8 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Kh6 loss in 2 half-moves
16 Kh8 loss in 2 half-moves
17 Khg7 loss in 2 half-moves
18 Khg8 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves
23 Rh3 loss in 2 half-moves