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EGTB: win in 4 half-moves

# move score
1 Rh7 win in 3 half-moves
2 Ng3 draw
3 Ra7 draw
4 Rb2 draw
5 Rb4 draw
6 Rg7 draw
7 g5 loss in 2 half-moves
8 Nf4 loss in 2 half-moves
9 Nf6 loss in 2 half-moves
10 Ng7 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves