Friday chess puzzle 12: the solution

Last week's chess puzzle proved rather difficult.

It was Alexei Shirov on the wrong end of a super move from Lukin at Daugavpils 1989.

The move that Lukin found was the 'bayonet thrust' 1 g6!! creating a very pretty picture with the 5 pawns adjacent to each other.

The main threat now is simply to play 2 Bxe6 winning. Black has no good defence, for example:

1 ... hg; 2 Bxe6 fe; 2 Rxf8+ Kxf8; 30 h7

or

1 ... gh; 2 Bxh6