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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Kf3 draw
3 Kf5 draw
4 Kg3 draw
5 Kh3 draw
6 Kh4 draw
7 Ra3 draw
8 Rb1 draw
9 Rb2 draw
10 Rh3 draw
11 Rg3 loss in 4 half-moves
12 Kf4 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Rb5 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 Rc3 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Rf3 loss in 2 half-moves