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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Nb2 draw
3 Nc3 draw
4 Rb2 draw
5 Rb3 draw
6 Rb4 draw
7 Rb5 draw
8 Ra1 loss in 4 half-moves
9 Nb6 loss in 2 half-moves
10 Nc5 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg1 loss in 2 half-moves
18 Rh1 loss in 1 half-moves