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EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 R1g2 draw
3 R3g2 draw
4 Rb3 draw
5 Rf2 draw
6 Rf4 draw
7 Rf8 draw
8 Rg4 draw
9 Rgf3 draw
10 Rh1 draw
11 Rh3 draw
12 Rg8 loss in 8 half-moves
13 Rff3 loss in 4 half-moves
14 Ra1 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rf6 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg7 loss in 2 half-moves