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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Re2 win in 3 half-moves
3 Ra2 draw
4 Rc2 draw
5 Rd2 draw
6 Rf2 draw
7 Rg4 draw
8 Rg5 draw
9 Rg6 draw
10 Rg8 draw
11 Kb3 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kc7 loss in 2 half-moves
17 Kcc5 loss in 2 half-moves
18 Kcd5 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Kd4 loss in 2 half-moves
21 Kd7 loss in 2 half-moves
22 Kdc5 loss in 2 half-moves
23 Kdd5 loss in 2 half-moves
24 Ke5 loss in 2 half-moves
25 Ke6 loss in 2 half-moves
26 Ke7 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg3 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh2 loss in 2 half-moves