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EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kh4 draw
3 Kh7 draw
4 Ra3 draw
5 Rb1 draw
6 Rb2 draw
7 Rb8 draw
8 Rc3 draw
9 Rh3 draw
10 K5g5 loss in 2 half-moves
11 K5g6 loss in 2 half-moves
12 K6g5 loss in 2 half-moves
13 K6g6 loss in 2 half-moves
14 Kg4 loss in 2 half-moves
15 Kg7 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Re3 loss in 2 half-moves
21 Rf3 loss in 2 half-moves
22 Rg3 loss in 2 half-moves