Solution to yesterday’s tactic

gm  Venkatesh M.R

1

gm  Karthikeyan Murali

India Ch, Trivarur,  2015.11.17  Position before Black’s 37th move. I asked the reader to find the best continuation for Black (in the game Black prematurely exchanged  his Bishop for the Knight, and then found himself in difficulties, even losing the game in time trouble)

SOLUTION:

The solution is surprising, and has several critical moves, requiring accurate play from both sides. Let us start with the first move…

37…Bf3!!

diag3FE1ADBF931089EB

The idea of this move is to try to pick up the undefended Rook on d2 with …Qe1+.  If now 38.Rxf3?! Qe1+ 39.Kh2 Qxd2 and White has little or no compensation for the exchange. Note that  40.Nxg7? loses immediately to 40… Rg6!  So White must move his attacked Queen to g3 to cover the e1 square. (38.Qh4? g5! wins) 

38.Qg3! Rg6!

diag3FE1ADC0C9C0F85B

39.Qh4?!

diag3FD9D3A3DF957DEB

Now there is no …g5 to annoy White.

—————————————–

READER TAKE NOTE:

The best defence for White (instead of 39.Qh4) is 39.RxB! RxQ 40.NxR (diagram)

diag3FD9D3A2DA9AE3B5

Despite having only a Rook and Knight for the Queen, White has a compact position with no weaknesses.  I would think that White has reasonable chances of holding out with some fortress type of idea….

——————————————-

39…Qa1+! 40.Kh2!

diag3FD9D3A67EAC2F07

40…Bxg2!!

diag3FD9D3A77739542E

Even stronger than 40…Rxg2+ ,with the same idea.  If now  41.Rxg2 Rxg2+ 42.Kxg2 g5! wins.

 

41.Rg4!? 

diag3FDA7B74465AA6EE

Relatively best, given that Black was threatening mate in one.  Die-hards will have noticed that the ‘brilliant’ 41.Qxh7+ does not work.

 

41…Qh1+ 42.Kg3 Qe1+ 

diag3FDA7B75327A5706

A picturesque position!

 

43.Rf2 Bc6!!

diag3FDAD91F8EB20EC4

What a hero this Bishop is!

Now the smoke clears and we realize that the White King is just too exposed.   There is no longer any real resistance available for White.  After the relatively best 44.RxR Qg1+ 45.Kf4 QxR(g6), Black , threatening (amongst other things) …Rf8, the game would not last much longer.

%d bloggers like this: