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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kcd2 draw
3 Ked2 draw
4 Ra2 draw
5 Rc2 draw
6 Rd2 draw
7 Re2 draw
8 Rg5 draw
9 Rg6 draw
10 Rg7 draw
11 Rg8 draw
12 Rh2 draw
13 Kb2 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ke4 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Kcd3 loss in 1 half-moves
28 Kcd4 loss in 1 half-moves
29 Ked3 loss in 1 half-moves
30 Ked4 loss in 1 half-moves