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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Re8 win in 3 half-moves
3 Nb6 draw
4 Nc5 draw
5 Nf6 draw
6 Ra8 draw
7 Rb1 draw
8 Rb2 draw
9 Rc8 draw
10 Rd8 draw
11 Ne5 loss in 2 half-moves
12 Nf8 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves