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Member since Jul-02-05
living near Frankfurt am Main (Germany)
>> Click here to see sigi's game collections.

   sigi has kibitzed 28 times to chessgames   [more...]
   Nov-30-09 George Atwood (replies)
sigi: George Walker's Book of 1835 is accessible through Google books. If Walker is right, Wilson's forename was Joseph not Jonathan.
   May-24-08 Dubois vs Steinitz, 1862 (replies)
sigi: I've read in every book that 6.♗g5 is a gross error but I haven't seen a proof. This game isn't suitable as one because (by playing 11.d4 and 12.e5) White gives up his control of the centre (and afterwards of h4) opens the position and invites Black's pieces to join the attack on
   Feb-29-08 Wolf Meyer Popert (replies)
sigi: I just googled a variation of <Horwitz' Mate>: [DIAGRAM] Horwitz-Popert, Hamburg, 1844. 1.♖h5 ♕xh5 2.♕xc6
   Feb-23-08 Sarah Papp (replies)
sigi: Born on April 30, 1988, in Nordhorn (Germany).
   Feb-12-08 NN vs Greco, 1620 (replies)
sigi: Some time ago I looked at this line and came to the conclusion that 9...c6? loses (e.g. 10.Nc3 Kc7 11.Bf4 Qxa1 12.Nxd7! ) and 9...Qxc1! leads to unclear positions. The Bc1 is more important for White's attack than the Ra1.
   Feb-12-08 Carl Jaenisch (replies)
sigi: <brankat> During the preparation of both books their authors were in close contact. In 1842 Jaenisch visited twice Berlin and analysed openings with von der Lasa: "Der Austausch meiner Ideen mit dem russischen Gaste geschah weniger contradictorisch in der gespielten Partie, als ...
   Feb-02-08 Rublevsky vs Lputian, 2003 (replies)
sigi: The correct move order is: 22...Re8, 24...Rc8 Source: The Chess Informant
   Jan-13-08 Li Shilong vs A Ushenina, 2008 (replies)
sigi: <silvermoon>, click below the board at <find similar games>! At Help you will learn more about this feature.
   Nov-27-07 J Becerra Rivero vs Bareev, 2007 (replies)
sigi: <Why give up here?> To save time and energy: [Event "World Cup"] [Site "Khanty-Mansiysk RUS"] [Date "2007.11.25"] [Round "1.2"] [White "Becerra Rivero, J"] [Black "Bareev, E"] [Result "0-1"] [WhiteElo "2568"] [BlackElo "2653"] [ECO "C13"] [EventDate ...
   Oct-17-07 Hjartarson vs J Nogueiras, 1988 (replies)
sigi: In my database the game is annotated by Nogueiras/Seiro-Gonzalez and others. The comment after 30 ... Qf2 reads: "finis". The rest of the game is in my oppinion just one of the two variations which Nogueiras/Seiro-Gonzalez gave to show that Black is winning indeed.
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