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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kb1 draw
3 Ke1 draw
4 Ra2 draw
5 Rf2 draw
6 Rg1 draw
7 Rg8 draw
8 Rh2 draw
9 Kb2 loss in 2 half-moves
10 Kcc2 loss in 2 half-moves
11 Kcd2 loss in 2 half-moves
12 Kdc2 loss in 2 half-moves
13 Kdd2 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Rg3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg7 loss in 2 half-moves