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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 K3a4 draw
3 K5a4 draw
4 Ka2 draw
5 Ka6 draw
6 Ra7 draw
7 Rf7 draw
8 Rg1 draw
9 Rg6 draw
10 Rg8 draw
11 Rh7 draw
12 K3b4 loss in 2 half-moves
13 K5b4 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb5 loss in 2 half-moves
17 Kb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd7 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rg3 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves