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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Rf2 win in 3 half-moves
3 Kf5 draw
4 Kg5 draw
5 Kh5 draw
6 Rb7 draw
7 Rc7 draw
8 Rd7 draw
9 Re7 draw
10 Rf3 draw
11 Rf4 draw
12 Rf5 draw
13 Rf6 draw
14 Kb1 loss in 2 half-moves
15 Kb2 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kc1 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kd1 loss in 2 half-moves
20 Kd2 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Kf3 loss in 2 half-moves
23 Kf4 loss in 2 half-moves
24 Kg3 loss in 2 half-moves
25 Kh3 loss in 2 half-moves
26 Kh4 loss in 2 half-moves
27 Ra7 loss in 2 half-moves
28 Rf8 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh7 loss in 2 half-moves