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EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ra6 draw
3 Rc6 draw
4 Rf1 draw
5 Rf2 draw
6 Rf3 draw
7 Rf4 draw
8 Rg6 draw
9 Rh6 draw
10 K7b7 loss in 2 half-moves
11 K7b8 loss in 2 half-moves
12 K7d7 loss in 2 half-moves
13 K7d8 loss in 2 half-moves
14 K8b7 loss in 2 half-moves
15 K8b8 loss in 2 half-moves
16 K8d7 loss in 2 half-moves
17 K8d8 loss in 2 half-moves
18 Kb6 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves
22 Re6 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rf8 loss in 2 half-moves