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EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rc2 win in 3 half-moves
3 Ra2 draw
4 Rd2 draw
5 Re2 draw
6 Rf2 draw
7 Rg5 draw
8 Rg6 draw
9 Rg7 draw
10 Rg8 draw
11 K7b7 loss in 2 half-moves
12 K7b8 loss in 2 half-moves
13 K7d7 loss in 2 half-moves
14 K7d8 loss in 2 half-moves
15 K8b7 loss in 2 half-moves
16 K8b8 loss in 2 half-moves
17 K8d7 loss in 2 half-moves
18 K8d8 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh2 loss in 2 half-moves