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Black invested a lot of material to reach this position in which he threatens to clear the long diagonal of the bishop b7 with 30...e3+.
How must White continue in the diagram position?
A) 30.bxc3
B) 30.Qxc3
C) 30.Qxe5
Do you like these lessons? There are plenty more by tactic expert Oliver Reeh in ChessBase Magazine, where you will also find openings articles and surveys, endgames, and of course annotations by the world's top grandmasters.