Ruy Lopez: Berlin Defense, Closed Bernstein Variation (C66)

109 puzzles

e4 e5 Nf3 Nc6 Bb5 Nf6 O-O d6

94 puzzles for White · avg difficulty 1.6

15 puzzles for Black · avg difficulty 1.5

Mistake	Side	Count	Avg loss
6.a6	White	13	3.7 pawns
6.Nxe4	White	7	3.7 pawns
8.bxc6	White	6	2.1 pawns
6.exd4	White	6	3.0 pawns
6.d5	White	5	2.5 pawns

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