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Member since Jan-21-08 · Last seen Aug-15-22
I am Brazilian, so my mother tongue is portuguese. I have been trying to learn chess since 7 years old. I have a FIDE rating around 1850. Full Member

   Machado has kibitzed 70 times to chessgames   [more...]
   Dec-16-15 O B Vea vs F B Jacobsen, 2014 (replies)
Machado: Solved today's puzzle after seeing 27.Qf6+ instead of Rh1+. I think the straight 25.Qf6 should win at least a rook.
   Jun-27-12 Morozevich vs Bologan, 2004 (replies)
Machado: Bologan comments this game in his DVD guide about the Caro Kann. He says that he had a nice position before the critical positional mistake ...18.dxe4, opening the position for white bishops.
   Apr-20-12 Thematic Challenge chessforum (replies)
Machado: I congratulate Chessgames for implementing this great idea. I like the opening choices and the selection system. This promise to be a more interesting game, avoiding at least part of the boring discussions in the beginning. In standard computer assisted games people are usually ...
   May-19-11 Gelfand vs Grischuk, 2002 (replies)
Machado: According to the tablebase, the position after ...56.Rxh2 is a win for black in 57 moves, but it was spoiled by 59.a5. It was necessary to move the rook to h3,h6 or h5. I think it should not be so difficult to miss a win in this position, even for a GM.
   Dec-10-10 McShane vs Kramnik, 2010 (replies)
Machado: According to Nalimov tablebase without the a pawn, the position is a draw.
   Nov-24-10 Topalov vs M Lodhi, 2010 (replies)
Machado: <Once> Although I rarely write here I usually look at POTD and learn from the many kibitzers. Your posts are not only entertaining, most of them are also instructive focusing on the strategy to come to the puzzle position. I wish I had one tenth of your imagination. Even the ...
   Oct-11-10 The World vs N Pogonina, 2010 (replies)
Machado: Switching to Bf4. As others have pointed out, the repetition give us more time to consider other moves like h3, my first choice. There is also a tiny possibility that she makes a different move, which could be good for us. If after the repetition, in 4 days, our team of analysts ...
   Apr-07-10 Battle of the Brains 3, 2009 (replies)
Machado: team black I like 23.Qe4 Be6, but we should be prepared for Rh5, placing the rook on a very good square and also enabling Qh1, attacking our h pawn and defending the first rank.
   Jan-31-10 Carlsen vs Caruana, 2010 (replies)
Machado: In time trouble Caruana missed 30.Nd7. And ...31.Ra3 32.Bb3 Ra5 was also stronger than 31.Rxc4. Now I think a draw is coming.
   Dec-13-09 Ni Hua vs Carlsen, 2009 (replies)
Machado: With 11.Bg3 instead of Nxg6, white threw away all the advantadge.
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