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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Nf2 draw
3 Nf6 draw
4 Ra1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb4 draw
8 Rb6 draw
9 Rc1 draw
10 Rf1 draw
11 Rg1 draw
12 Nh2 loss in 12 half-moves
13 Rb5 loss in 4 half-moves
14 Ne3 loss in 2 half-moves
15 Ne5 loss in 2 half-moves
16 Nh6 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves