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EGTB: win in 4 half-moves

# move score
1 Rbf1 win in 3 half-moves
2 Ra1 draw
3 Rb7 draw
4 Rb8 draw
5 Kg2 loss in 2 half-moves
6 Kg3 loss in 2 half-moves
7 Kg4 loss in 2 half-moves
8 Kh2 loss in 2 half-moves
9 Kh4 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rbc1 loss in 2 half-moves
16 Rbd1 loss in 2 half-moves
17 Rbe1 loss in 2 half-moves
18 Rbg1 loss in 2 half-moves
19 Rh2 loss in 2 half-moves
20 Rhc1 loss in 2 half-moves
21 Rhd1 loss in 2 half-moves
22 Rhe1 loss in 2 half-moves
23 Rhf1 loss in 2 half-moves
24 Rhg1 loss in 2 half-moves