Cordingley puzzle 8

White to play and win

Solution

I suspect I have seen this one before, or puzzles very much like it. The solution came 'by inspection', and it was just a matter of calculation to check that the queen sacrifice 2 Qb7 was sufficient. Black's f8 bishop is helpfully placed, so that if after 3 Bd7+ black plays Ka8, then Rb8+; and if 3…Ka6 4Bc8+, 5 Nc4 and 6 Rb4 mate, ie. lots of white's pieces gang up on the defenceless lone black king.

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