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EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Ra4 draw
3 Rc4 draw
4 Rd4 draw
5 Re4 draw
6 Rg1 draw
7 Rg3 draw
8 Rg7 draw
9 Rg8 draw
10 Kb1 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 Kcd1 loss in 2 half-moves
14 Kcd2 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ked1 loss in 2 half-moves
17 Ked2 loss in 2 half-moves
18 Kf1 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rh4 loss in 2 half-moves