Today’s challenge: Find the typical pattern – Lasker to move:
Lasker against Fortuijn in 1908
White is the exchange and a pawn up and should win. But is it a good idea to offer the exchange back by playing Ra4?
Hint: You just need to open a file in order to access Black’s monarch.
Answer: The pattern is Anastasia’s mate and Black can’t win exchange because of a checkmate threat.
In the game Lasker played:
28. Ra4 Nc5? 29. Ne7+
Now Black is forced to give up Queen and still mate can’t be avoided, but the move now played allows a quick finish:
The game ended after 2 more moves.
Opening up h file.
30…Kxh7 31. Rh4#
The next example has been taken from “The Art of checkmate” – Renaud & Kahn:
Lasker – N.N.
Question: Black is in serious trouble. Is it wise to castle here?
Answer: Of course not as after castling White gets a devastating attack based on Anastasia’s checkmate pattern.
Here are the rest of the moves:
9… 0-0 10. Nxe7+ Kh8 11. Qh5
The threat is to play Qxh7 followed by Rh5#.
11…h6 won’t help much after 12.d3 when the c1 bishop wants to take on h6.
12. Qh6 d6
This is suicide.
Checkmate can’t be avoided.
13…gxh5 14. Qf6#
Milan Vidmar against Max Euwe in 1929
Question: White to move. Black has created the devastating threat of Qf4, how cn you meet this?
Hint: This is a similar pattern in horizontal form! And Black’s Rook on c2 is undefended.
Answer: White can with Re8+.
34. Re8+ Bf8??
Allows checkmate, but if 34… Kh7 then 35. Qd3+ picks up the rook.
35. Rxf8!! Kxf8? 36. Nf5+ 1-0
Euwe resigned here because if 36… Kg8 then 37. Qf8+!! followed by Rd8 is mate.