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EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Ka2 draw
3 Ka5 draw
4 Ra7 draw
5 Rf7 draw
6 Rg1 draw
7 Rg6 draw
8 Rg8 draw
9 Rh7 draw
10 K3b3 loss in 2 half-moves
11 K3b4 loss in 2 half-moves
12 K4b3 loss in 2 half-moves
13 K4b4 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rg2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rg4 loss in 2 half-moves