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Member since May-02-07 · Last seen May-22-23
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 as a way to find my way back.

   DrGridlock has kibitzed 974 times to chessgames   [more...]
   May-22-23 F Duz-Khotimirsky vs NN, 1910 (replies)
DrGridlock: Fritz 17 has it: 1 (#2) Bxh6 2 (#2) Qxh6 Over the board, I'd probably go with the bishop capture on h6 - so if there was a "ghost in the machine" I wouldn't be out the queen.
   Oct-24-22 R Vera vs G Garcia, 1992 (replies)
DrGridlock: <The choice for discovered check should be Bc3+, so as to unprotect a potential ... Rd2 interposition.> Some subtleties in the "material" line. Bxg7 works pretty well also ... Rd2 doesn't work as well (after 25 ... Rd2; 26 Rc1 the queen is going to have to be sacrificed
   Sep-26-22 A Powers vs Dake, 1937 (replies)
DrGridlock: <newzild: Interesting that Stockfish 11 considers Alekhine's Defence bad enough to warrant a question mark.> Fritz 17 - to depth 32 - gives 1 e4 f6 an eval of .4. By contrast, Fritz 17 - to depth nn - gives 1 e4 e5 an eval of .25. So modern engine evals rate the Alekhine ...
   Jun-06-22 A A Zaremba vs R Antonio, 1995 (replies)
DrGridlock: Queen sac Monday? 23 ... Qg3+; 24 Bxg3 Rh1# Rook sac Monday? 23 ... Rg3+; 24 Bxg3 Qh1# Exchange sac Monday? 23 ... Rxh2+; 24 Be4 Rh1+; 25 Bxh1 Qxh1# Just don't try sacking a minor piece with Nxe3 or with Be4.
   May-24-22 G Garcia vs B Zuckerman, 1986
DrGridlock: The "tricky" part of the puzzle is that just about any move wins for White so it's hard to pick just >one<. Black's game continuation is not his best play, so before deciding on 24 Nxf7 you also have to calculate better defenses for black, beginning with the check 24 ... ...
   Mar-14-22 Ahues vs Rubinstein, 1930 (replies)
DrGridlock: < There aren't really any alternatives to consider. Now, White threatens Qh8#, and the only reasonable way to prevent this is to move the queen along the 7th (else Qg7#).> It's a bit trickier than most Mondays. Black's best alternative on move 35 is to block the a1-h8 ...
   Mar-09-22 NN vs E Canal, 1935 (replies)
DrGridlock: <<Calculon: Is Ne2 the losing move or just one in a series of bad moves? It seems to serve no purpose; it costs a tempo to free the King's bishop.>> 2 Ne2 is generally considered superior to 2 Ke2. The later makes an occasional (!?) appearance in grandmaster games :) ...
   Jan-10-22 D Anton Guijarro vs Y Santiago, 2018 (replies)
DrGridlock: I saw that white's queen and bishop are nicely stacked along the a1-h8 diagonal, with mating threats on g7 and h8. I first looked at picking up black's knight with Rxf7, since mate follows after Bxf7 or Qxf7. However, after Kxf7 the king can run and hide on e8 with no way for ...
   Dec-27-21 A Donchenko vs Nakamura, 2021
DrGridlock: A fortunate escape for Naka. After 53 Rc6 Alexander Donchenko - Hikaru Nakamura 0-1 1.2, World Rapid 2021 [DIAGRAM] Black is busted. Obviously cannot take 53 ... Bxc6, and white rook is going to swoop across the 6 rank and take black's g-pawn. After 58 Bg2 things really ...
   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 ...
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