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EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ra4 draw
3 Rb5 draw
4 Rb7 draw
5 Rd4 draw
6 Rh4 draw
7 Ke1 loss in 2 half-moves
8 Ke2 loss in 2 half-moves
9 Ke3 loss in 2 half-moves
10 Kf1 loss in 2 half-moves
11 Kf3 loss in 2 half-moves
12 Kg1 loss in 2 half-moves
13 Kg2 loss in 2 half-moves
14 Kg3 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves