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EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 g1=N draw
4 Ra1 draw
5 Ra2 draw
6 Rb1 draw
7 Rb2 draw
8 Rc8 draw
9 Rd8 draw
10 g1=B loss in 2 half-moves
11 g1=K loss in 2 half-moves
12 g1=Q loss in 2 half-moves
13 g1=R loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves