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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kg1 draw
3 Kg3 draw
4 Kh1 draw
5 Ra1 draw
6 Rb8 draw
7 Rc1 draw
8 Rh1 loss in 4 half-moves
9 Kg2 loss in 2 half-moves
10 Kh3 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 Rb7 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rg1 loss in 2 half-moves