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EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Bc1 draw
3 Bf6 draw
4 Bh6 draw
5 Ra4 draw
6 Rf4 draw
7 Rh4 draw
8 Bd2 loss in 2 half-moves
9 Bd8 loss in 2 half-moves
10 Be3 loss in 2 half-moves
11 Be7 loss in 2 half-moves
12 Bf4 loss in 2 half-moves
13 Bh4 loss in 2 half-moves
14 Nf6 loss in 2 half-moves
15 Nf8 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rg2 loss in 1 half-moves