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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Kh5 draw
3 Kh8 draw
4 Ra1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb4 draw
8 Rc1 draw
9 Rh1 draw
10 K6g6 loss in 2 half-moves
11 K6g7 loss in 2 half-moves
12 K7g6 loss in 2 half-moves
13 K7g7 loss in 2 half-moves
14 Kg5 loss in 2 half-moves
15 Kg8 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves