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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 K8a7 draw
3 Ka5 draw
4 Ra1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb4 draw
8 Rh1 draw
9 K6a7 loss in 2 half-moves
10 K6b7 loss in 2 half-moves
11 K8b7 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb8 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc1 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