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EGTB: win in 12 half-moves

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