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EGTB: win in 4 half-moves

# move score
1 Rg6 win in 3 half-moves
2 Ra4 draw
3 Rd4 draw
4 Re4 draw
5 Rf4 draw
6 Rg1 draw
7 Rg5 draw
8 Rg7 draw
9 Rg8 draw
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kcc7 loss in 2 half-moves
14 Kcd8 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kdc7 loss in 2 half-moves
17 Kdd8 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Ke8 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rg2 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh4 loss in 2 half-moves