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EGTB: win in 4 half-moves

# move score
1 Rc4 win in 3 half-moves
2 Re8 draw
3 Rg8 draw
4 Na1 loss in 2 half-moves
5 Na5 loss in 2 half-moves
6 Nc1 loss in 2 half-moves
7 Nc5 loss in 2 half-moves
8 Nd2 loss in 2 half-moves
9 Nd4 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc3 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves