E3: Doroshkevich-Fedorov, Krasnodar 1981

 

1. Looks to me like Black’s Q is mostly immobilized, and that it’s his Bishop doing most of the guarding keeping White out of columns C and D. So to break that, I’d start with pressure from the Rook or the Queen, and then go after his Queen when the B breaks and runs. After that it’s in the bag.

   This is another one of those spoon things, right, or was it a fork, where the one piece is trying to do several things all at the same time? Black’s Q is trying to play wide area defense AND pose a check threat at the same time.

   1. Qd4, and it can go so many different ways from here. If the Bishop runs right, then
   2. Qc4 makes a nice set up. If Black goes Q for Q, then White goes Rd8+ for mate in 2. If not, take the Q and then Rd8++.

   Force the Black Queen to move, or sac one Queen for the other, and it’s Game Over for Black.

   Posted by Drew458       09/19/2012  at  05:22 AM  



2. Drew, right piece, wrong square. Yes, White’s Queen is moving, but not to d4. You’re on the right track, but there’s a more forceful move available.

   I’d call this a combination of weak back rank for Black and overloaded Black Queen.

   Posted by Christopher       09/20/2012  at  01:46 AM  



3. QE5 Qmoves
   Re8ck

   Posted by PurpleK       09/20/2012  at  08:09 AM  



4. Ah so, but not so!

   1. Qe5, Qc1+
   2. Rd1, Qxd1+
   3. Kh2, ... (perhaps Qe1 if nothing else)

   and now White is on the defensive.

   Posted by Drew458       09/21/2012  at  08:51 AM  



5. 1. Qe5 is correct Drew. If

   1… Qc1+

   White doestn’t play 2. Rd1? but 2. Kh2!.

   If Black then takes the Rook on d2 White wins with 3. Qb8+ and mate can’t be avoided.

   We still don’t have the proper followup to 1. Qe5. Black can stop the mate, but will drop his Bishop.

   Posted by Christopher       09/21/2012  at  09:15 AM  



6. Once more a problem without a solution.  I chose Q-d4 as my best guess. Then I looked at the comments.  Q-e5 looks better but can be met with 2.K-f8 not much for white or black at this point.  Still probably better than 1.Q-d4 f7-f5.

   I looked and looked, half an hour, and could find no clearly winning line.  So as always I turned it over to Rykba.  Rykba says the best move is 1.f2-f3 good for a half a pawn up ten moves (20 plys) in the future.  1.Q-e5 is good for a quarter pawn 10 moves up and 1.Q-d4 good for an eighth.

   Posted by Wes       09/22/2012  at  03:24 PM  



7. In the above comment where I wrote 2.K-f8 it should be 1. ... K-f8 blacks first move. This is how Rykba sees the 1.Q-e5 move.

   1. Qe5 Kf8
   2. Bb5 f5
   3. Rd6 Bd5
   4. b4 Kf7 and not much advantage for white.

   Posted by Wes       09/22/2012  at  05:15 PM  



8. I think you found a ‘cook’ in the problem Wes. Book gives:

   1. Qe5 Bd5 (the only defence)
   2. Rc2! Qd7
   3. Rc8+ Re8
   4. Qc7! Qxc8
   5. Bxc8 Bxb3
   6. Bd7 resigns

   No mention of 1… Kf8

   Posted by Christopher       09/25/2012  at  09:18 AM  

Commenting is not available in this weblog entry.