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EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Rg1 win in 3 half-moves
3 Kb7 draw
4 Kb8 draw
5 Kc8 draw
6 Kd7 draw
7 Kd8 draw
8 Ke7 draw
9 Ke8 draw
10 Kf6 draw
11 Kf8 draw
12 Kg6 draw
13 Kg7 draw
14 Kg8 draw
15 Ra2 draw
16 Ra7 draw
17 Ra8 draw
18 Re1 draw
19 Rh1 draw
20 Kb6 loss in 2 half-moves
21 Kc6 loss in 2 half-moves
22 Kd6 loss in 2 half-moves
23 Ke6 loss in 2 half-moves
24 Ra3 loss in 2 half-moves
25 Ra4 loss in 2 half-moves
26 Ra5 loss in 2 half-moves
27 Ra6 loss in 2 half-moves
28 Rb1 loss in 2 half-moves
29 Rc1 loss in 2 half-moves
30 Rd1 loss in 2 half-moves