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Member since May-06-20 · Last seen Dec-04-21
gens una sumus

   tbontb has kibitzed 100 times to chessgames   [more...]
   Dec-01-21 Capablanca vs Tartakower, 1924 (replies)
tbontb: A famous and much-analysed Capablanca endgame. After 36....Rf3 White wins as in the game so a better try is 36....a6 which may yet hold after the plausible variations 37.g6 b5 38.axb5 axb5 39.Kg5 b4 40.Kf6 Rc6+ or 37.Rd7 Rf3 38.g6 Rxf4+ 39.Kg5 Re4 40.Kf6 Re8.
   Nov-20-21 Estrin vs Berliner, 1965
tbontb: In a complex opening and middlegame, Berliner's 10....e4 was the novelty and Estrin's 15.Be2 a clear error which allowed Black to gradually take over. The position finally resolved into an advantageous R ending for Black, handled expertly by both players until 34.a4 then 38.a6 ...
   Nov-19-21 Keres vs Smyslov, 1953
tbontb: In a critical game, Keres gambles all on an attack against the enemy K, met with resolute defence by Smyslov. After 20.Rxh7 c3 White is simply lost. However, even Bronstein's much-quoted 20. Qg4 may be insufficient to draw against 20....c3 21.Bxc3 Qd6 which leaves Black clearly ...
   Nov-15-21 Smyslov vs Tal, 1964 (replies)
tbontb: Tal's 24....Qe2 is a spectacular Q offer (though objectively only good for equality, while simply 24....Qd7 appears stronger). Smyslov returns the material immediately but adjourns in a probably lost endgame. Tal demonstrates excellent technique to prove the advantage of the Black B ...
   Nov-07-21 Deep Blue vs Kasparov, 1996
tbontb: A triumph of active defence and an important game historically where Deep Blue first offered a positional pawn sacrifice then proceeded to methodically threaten the weak Black pawns. Kasparov sought counterplay in a mating attack which the computer calmly assessed as insufficient and
   Nov-06-21 Rubinstein vs Lasker, 1909 (replies)
tbontb: A game doubly famous for White's 18th move and later exemplary endgame technique. Lasker attacks over-ambitiously but meets a subtle defence and is forced to bail out into a lost ending, after which Rubinstein makes no mistake.
   Oct-27-21 Topalov vs Kramnik, 1996
tbontb: In this hyper-analysed line, 23....Bd3 was the novelty, improving on 23....Rdg8. Unsurprisingly, avoiding the draw by 25....Ka4 is suicidal after 26.b3+ Ka5 (Ka3 27.Bc1+ leads to mate) 27.exd8=Q+ Rxd8 28.Nc4+ Kb5 29.Bc7.
   Sep-19-21 Keres vs K Richter, 1942
tbontb: A game famous for Black's startling eleventh move ! As Alekhine points out, after 38.Kxd6 Black wins the race and queens first while e.g. 38.Kd4 a4 39.Kd3 Rh8 40.Rg2 Rh3+ 41.Kd4 Rh1 should probably draw. However, earlier on Black missed 33....Kd3 34.e4 Rc8 35.Rxf7 Rc5+ 36.Ke6 c3 ...
   Sep-18-21 Sajtar vs Alekhine, 1943
tbontb: Alekhine shows how to exploit the middlegame chances offered by the passed d pawn, as opposed to the enemy Q-side majority. After 39....d3 Black is clearly better so the last (slim) chance to fight on may be 39.Kg1 Re5 40.Qd3 Qxb4 41.Nxd4 Nf4 with a grim defensive task for White.
   Sep-15-21 M Czerniak vs Tartakower, 1939
tbontb: A seesaw struggle between two inventive players where initially 28.Rxe6 (better 28.cxb6 axb6 29.gxf5) squanders White's advantage though the ending remains difficult. Later on, 35.Bxb6 is tricky but probably only equal after 35....axb6 36.cxb6 (or 36.Re8+ Kf7 37.cxb6 Nf2+) ....Ra8 ...
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