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EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Ra8 draw
4 Rc8 draw
5 Re8 draw
6 Rf8 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg4 draw
11 K4b4 loss in 2 half-moves
12 K4b5 loss in 2 half-moves
13 K4d4 loss in 2 half-moves
14 K4d5 loss in 2 half-moves
15 K5b4 loss in 2 half-moves
16 K5b5 loss in 2 half-moves
17 K5d4 loss in 2 half-moves
18 K5d5 loss in 2 half-moves
19 Kb3 loss in 2 half-moves
20 Kb6 loss in 2 half-moves
21 Kc3 loss in 2 half-moves
22 Kc6 loss in 2 half-moves
23 Kd3 loss in 2 half-moves
24 Kd6 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rg7 loss in 2 half-moves
28 Rh8 loss in 2 half-moves