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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Rh2 win in 3 half-moves
3 Ra7 draw
4 Ra8 draw
5 Rb7 draw
6 Rb8 draw
7 Rf7 draw
8 Rf8 draw
9 Rgg8 draw
10 Rgh7 draw
11 Rhh7 draw
12 Rhg8 loss in 4 half-moves
13 Rc7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rh1 loss in 2 half-moves
25 Rh3 loss in 2 half-moves
26 Rh4 loss in 2 half-moves
27 Rh5 loss in 2 half-moves
28 Rh6 loss in 2 half-moves