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EGTB: win in 4 half-moves

# move score
1 Rf6 win in 3 half-moves
2 Ra3 draw
3 Rc3 draw
4 Rd3 draw
5 Re3 draw
6 Rf4 draw
7 Rf5 draw
8 K7e7 loss in 2 half-moves
9 K7e8 loss in 2 half-moves
10 K7g7 loss in 2 half-moves
11 K7g8 loss in 2 half-moves
12 K8e7 loss in 2 half-moves
13 K8e8 loss in 2 half-moves
14 K8g7 loss in 2 half-moves
15 K8g8 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Kg6 loss in 2 half-moves
19 Rb3 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