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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Nd1 draw
3 Nd3 draw
4 Nh3 draw
5 Ra5 draw
6 Rb6 draw
7 Rb7 draw
8 Rb8 draw
9 Nh1 loss in 8 half-moves
10 Ne4 loss in 2 half-moves
11 Ng4 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rh5 loss in 2 half-moves