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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ra8 draw
3 Rc8 draw
4 Rf8 draw
5 Rg3 draw
6 Rg4 draw
7 Rgh8 draw
8 Rh3 draw
9 Rh4 draw
10 Rhh8 draw
11 g1=B loss in 2 half-moves
12 g1=K loss in 2 half-moves
13 g1=N loss in 2 half-moves
14 g1=Q loss in 2 half-moves
15 g1=R loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rh5 loss in 2 half-moves
23 Rh6 loss in 2 half-moves
24 Rh7 loss in 2 half-moves