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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kb4 win in 5 half-moves
3 K1a2 draw
4 Ka4 draw
5 Ra7 draw
6 Rf7 draw
7 Rg3 draw
8 Rg5 draw
9 Rg6 draw
10 Rg8 draw
11 Rh7 draw
12 K1b2 loss in 2 half-moves
13 K3a2 loss in 2 half-moves
14 K3b2 loss in 2 half-moves
15 Kb1 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rg2 loss in 2 half-moves