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EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Ka2 draw
3 Ka5 draw
4 Ra8 draw
5 Rb1 draw
6 Rb6 draw
7 Rb7 draw
8 Rh8 draw
9 K3b3 loss in 2 half-moves
10 K3b4 loss in 2 half-moves
11 K4b3 loss in 2 half-moves
12 K4b4 loss in 2 half-moves
13 Kb2 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves