Black to play and win
M Levy v RF Griffiths 1966
Solution
CJS Purdy's concept of jump biffs helps here. Or, his admonition to always look for 'pins, nets and ties'. Here the Nf2 is pinned, blocking the Rd2’s sight of g2, which is also in the eye of the Qc6. So 1…Bh3! and it is game over.