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DrGridlock
Member since May-02-07 · Last seen Dec-08-21
Northern Michigan is my current home. I grew up near Detroit, and played chess as a junior. I attended Hope College and the University of Chicago, and lived and worked in Washington DC for 10 years.

I'm just getting back into chess, and enjoying Chessgames.com as a way to find my way back.


   DrGridlock has kibitzed 966 times to chessgames   [more...]
   Nov-16-21 Iturrizaga Bonelli vs A Chandra, 2018 (replies)
 
DrGridlock: The <good> thing about bishops in end-games is that they can move long distances in a single sashay. The <bad> thing about bishops is that they can never (ever) move to a square of a different color. Promoting (or preventing promotion) of a pawn on the square the ...
 
   Nov-01-21 Salov vs Piket, 1991 (replies)
 
DrGridlock: Probably the trickiest part of the puzzle is that after: 39 ... Nxf4+ 40 Qxf4 Black has 4 different knight moves (h5, f5, e4, e2) which uncover the queen check down the g-file on White's king. It does take a bit of calculation to find that: (i) none lead directly to mate
 
   Oct-26-21 M Narva vs I Bulmaga, 2021 (replies)
 
DrGridlock: <awfulhangover> You're right - I was not precise in my refution of Al's bad variations. Still true that 38 Rxf4 is the solution - and there are no perpetual check "outs" for Black.
 
   Sep-20-21 E Schiller vs T Redman, 1975 (replies)
 
DrGridlock: I first looked at Rg6+, and noticed that it forces black to sac his queen in order to survive. (Counting material, White who starts a bishop down, gets a queen for a rook and bishop). I then noticed that after the rook and queen trade that black's knight is hanging on on c8 ...
 
   Aug-24-21 Dominguez Perez vs Svidler, 2021 (replies)
 
DrGridlock: That is - "Hard to see a forced win for [Black] in that end game"
 
   Jul-05-21 Lagno vs D Howell, 2002 (replies)
 
DrGridlock: < Walter Glattke: Black threatens mate by Rxg3, and perpetual after 41. b8Q (drollere) Rh1+ 42.Kxh1 Qe1+.> I was trying to figure out how the black queen gets from g5 to e1 on move 42. The actual perpetual check threat is 42 ... Qh5+ and then the black queen shuttles back ...
 
   May-31-21 Le Quang Liem vs E Hansen, 2018 (replies)
 
DrGridlock: Not really a "mate in 2" As < saturn2 > points out: Black wins 48...Ne2+ 49. Kxh3 Qg3 mate 49. Kg2 Qg3+ 50. Kh1 Nf2+ 51. Qxf2 Qxf2 queen 49. Kh1 Ng3 quuen fork It's the lines where black does not take on h3 that get "tricky" to verify. Black wins massive material, ...
 
   May-24-21 Knaak vs Adorjan, 1985 (replies)
 
DrGridlock: <1g1yy: I started off immediately with qh5, and although it does allow black one full tempo, the end result is the same. I see the Rook Sac is more forceful but mate is mate.> Can you give us your line to mate after: 21 Qh5 fxg6 The entire point of the puzzle is that ...
 
   May-18-21 L Christiansen vs Shirov, 1991 (replies)
 
DrGridlock: White missed a forced win at move 34. (Hat tip to Andrew Soltis who includes this in "The Inner Game of Chess"). White would like the queen check at f8 to be more productive, but after: 34 Qf8+ Kg5 35 h4+ Qxh4+ stops white's attack and launches black's. It's not easy to ...
 
   May-17-21 D J Ledger vs P K Wells, 2001 (replies)
 
DrGridlock: I misread the position, and thought it was White to play ... in which case Rc7 is pretty devastating.
 
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