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Bubo bubo
Member since May-14-14 · Last seen Jul-05-17
Mathematician from Germany, back to chess after a hiatus of 20 years. Former rating approx. 1750 (DWZ).
>> Click here to see Bubo bubo's game collections.

   Bubo bubo has kibitzed 320 times to chessgames   [more...]
   Feb-12-17 B Milic vs Gligoric, 1947
Bubo bubo: <<59 g6 Kg5 60 h8=Q> not 60 Kg8? Kxg6 and Black wins> 60...Kxg6 61.h8Q is still a draw. After 59...Kg5 White may also try 60.Kf7, hoping for 60...Rf1+??, but if the rook stubbornly stays on the h-file, White can make no progress, since 61.g7 Rxh7 pins the g-pawn.
   Feb-12-17 Rubinstein vs O Chajes, 1911 (replies)
Bubo bubo: <Conrad93> 61.a7 Rxb7 62.a8Q leads to the lengthy and annoying endgame K+Q vs K+R; supporting the passed pawns with the king is a simpler way to win.
   Feb-08-17 Yuri Averbakh (replies)
Bubo bubo: Happy birthday, GM Yuri Averbakh! Dear The world's oldest living grandmaster turns 95, but is not chosen <POTD> on his anniversary?!
   Feb-07-17 Sasikiran vs Areshchenko, 2005 (replies)
Bubo bubo: Black is already up the exchange against a pawn, but the pair of passed white pawns might become dangerous. Black wins one of these pawns with 27...Rxe4+ 28.Kxe4 (otherwise Rxe5), and now the skewer 28...Bf5+ wins back the rook.
   Feb-06-17 J Franzen vs J Petreje, 1996
Bubo bubo: Before moving, <always> check all potentially dangerous replies: checks, mate threats, captures - and threats against the queen!
   Feb-06-17 Olland vs J Esser, 1901 (replies)
Bubo bubo: <psmith> Thank you - completely missed the fact that 24...d3 renders Qb1+ a threat! :-(
   Feb-06-17 T Dowden vs S Yee, 2016 (replies)
Bubo bubo: 40.Qxh7+ Kxh7 41.Rh4+ Bh6 42.Rxh6# One single line, starting with a ♕-sac: canonical Monday!
   Feb-01-17 Spassky vs Fischer, 1970 (replies)
Bubo bubo: <Mrs Butterworth: Missed it. :-( I looked at 38. Re7!?, not seeing the clever pin 38. ...Qb6, which holds.> Same here. :-(
   Jan-31-17 S Schweber vs Spassky, 1955 (replies)
Bubo bubo: 35...Rd1! wins the queen for a rook, since 36.Qxd1 would allow Qg2#.
   Jan-24-17 Kholmov vs W Pietzsch, 1965 (replies)
Bubo bubo: Black could set up an unstoppable mate threat with 33...Rf1, but this would allow 34.Rd8+ with a dangerous counterattack. Therefore we need a <vorplan>, which wins the vital tempo: 33...Bg1+ 34.Kxg1 Rf1+ 35.Kh2 Rh1#
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