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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kh3 draw
3 Kh6 draw
4 Ra1 draw
5 Rb2 draw
6 Rb7 draw
7 Rb8 draw
8 Rc1 draw
9 Rh1 draw
10 K4g4 loss in 2 half-moves
11 K4g5 loss in 2 half-moves
12 K5g4 loss in 2 half-moves
13 K5g5 loss in 2 half-moves
14 Kg3 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 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