Recognising the patterns : Challenge # 9

Today’s challenge: Find the typical pattern and react accordingly. Black to move.

David Bronstein against Paul Keres 1950

Q: What is white threatening? Find the best defend for Black.

Hint: All you need to do is, bring your queen into the defence.

Solution:

The best move for Black is to play 29…Rfd8 as White can’t play 30. Qh6. We will discuss it deeply later on but let’s first check what was happened in the game.

29…b3??
30. axb3 Qb4

31. bxc4

Rf4 works too.

31…Qxc4

32. Rf4!

Not 32. Qh6 because Rg8 followed by 33…g5 defends. Mate can’t be avoided now.

32…Qc2

If 32… Rg8, then Rh4 wins (Yusupov)

33. Qh6 Black resigned

The pawn on f6 and queen are threatening mate on g7 which is known as Lolli’s mate. When the defender tries to save mate (usually by placing Rg8) that opens the door for other beautiful combinations for attacker:
– Sacrifice on h7 followed by mate along h file
– Bringing knight on g5/e5 attack on h7 or f7 or both

So what is the general optimal way to save against Lolli’s mate?

It could be vary case to case but if you can bring queen into defence it saves because of
– You can exchange attacker’s main attacking piece Queen and still can defend f7-g7-h7

Now let’s check, how black was able to defend this game using above general observation.

Here is the improvement.

29…Rfb8

That brings the queen into the defence in time.
Not 29…Rfc8 because it allows Bd7 with tempo – 30. Bd7 Rfb8 31. Qh6 Rg8 32. Rf4 and now g5 won’t work because of 33. Bf5 and White wins.

Now If 30. Qh6 then Rg8 followed by g5 saves the game. Or if 30. Rf4 then Qd8 joins the defence.
And the game is on!

It is wise to learn how defend against the usual attacking pattern.

Ashvin Chauhan