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EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Ne3 draw
3 Ra8 draw
4 Rb1 draw
5 Rb7 draw
6 Rc8 draw
7 Na1 loss in 8 half-moves
8 Na3 loss in 8 half-moves
9 Nb4 loss in 4 half-moves
10 Rb2 loss in 4 half-moves
11 Nd4 loss in 2 half-moves
12 Ne1 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 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves