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EGTB: win in 4 half-moves

# move score
1 R7g4 win in 3 half-moves
2 R3g5 draw
3 R3g6 draw
4 R7g5 draw
5 R7g6 draw
6 Rc3 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Kf1 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kg2 loss in 2 half-moves
13 Kh1 loss in 2 half-moves
14 Kh2 loss in 2 half-moves
15 R3g4 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh3 loss in 2 half-moves
27 Rh7 loss in 2 half-moves