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EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Ra6 win in 7 half-moves
3 g1=N draw
4 Ra7 draw
5 Rb8 draw
6 Rc6 draw
7 Rc7 draw
8 Rd6 draw
9 Rd7 draw
10 Re6 draw
11 Re7 draw
12 g1=B loss in 2 half-moves
13 g1=K loss in 2 half-moves
14 g1=Q loss in 2 half-moves
15 g1=R loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rg7 loss in 2 half-moves
24 Rh6 loss in 2 half-moves
25 Rh7 loss in 2 half-moves