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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Kc3 draw
3 Kd3 draw
4 Ke3 draw
5 Rb7 draw
6 Rc7 draw
7 Rd7 draw
8 Rf7 draw
9 Rg1 draw
10 Rg3 draw
11 Rg8 draw
12 Ka2 loss in 2 half-moves
13 Kb1 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kd1 loss in 2 half-moves
18 Ke1 loss in 2 half-moves
19 Ke2 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rh7 loss in 2 half-moves