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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Na7 draw
3 Nc3 draw
4 Nc7 draw
5 Nd6 draw
6 Re7 draw
7 Rf5 draw
8 Rf6 draw
9 Rf8 draw
10 Rg7 draw
11 Rh7 draw
12 Na3 loss in 2 half-moves
13 Nd4 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rf4 loss in 2 half-moves