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EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Nf4 draw
3 Ra1 draw
4 Rb2 draw
5 Rh1 draw
6 Ne1 loss in 4 half-moves
7 Rg1 loss in 4 half-moves
8 Ne3 loss in 2 half-moves
9 Nh4 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves