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Member since Jun-28-08 · Last seen Nov-24-15
I'm an applied mathematician who lives in the south east of Spain.

My approach to the puzzles is similar to that of David Zechiel (User: dzechiel): I first write the variations I find in a reasonable amount of time (using the puzzle diagram only) and post them before watching the game or other's comments. Then I have a look at them and try to be critical with my work. I apply the touch-move rule to my posts (see Unzicker vs Fischer, 1960). I hope to improve my tactical vision this way.

Often I cannot even spend a couple of minutes looking at the diagram (work, family, other interests, etc.) so I try to blind solve it along several breaks. My first attempt was R Vera vs S Garcia Martinez, 2001 and although the variations I found were not very deep I felt quite satisfied with the experience.

>> Click here to see agb2002's game collections. Full Member
   Current net-worth: 1,489 chessbucks
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   agb2002 has kibitzed 3543 times to chessgames   [more...]
   Nov-24-15 Y Sakharov vs Nezhmetdinov, 1957 (replies)
agb2002: White has a bishop for a knight and a pawn. The black king has only one legal move and the knight is defenseless. This suggests 31.h5+ Kxh5 32.Rf5+ Kg6 33.Rxd5 + - [B vs 2P] . For example, 33... Rh8+ 34.Kg4 Ra4+ 35.Bf4 c4 36.Rdd7 f5+ 37.Kf3 Ra3+ 38.Be3 Rf8 (38... Re8 39.Rd6+ and ...
   Nov-23-15 Uhlmann vs Smyslov, 1973 (replies)
agb2002: White has a rook and a bishop for two knights and two pawns. Black threatens 30... Nxf3 and Nxe5. White can deliver mate in three with 30.Qf1+ Rxf1 (30... Kh7 31.Rh1#) 31.Rxf1+ Kh7 32.Rh1#.
   Nov-22-15 Mamedyarov vs Gelfand, 2014 (replies)
agb2002: White has a bishop and a pawn for a rook. 49.a7 ties the rook to the Black's first rank but it is difficult to make progress because the rook can check the white king in case of Kb7 and the black king threatens the d-pawn. This suggests 49.Kc5 to support d6: A) 49... Rd2 50.a7 ...
   Nov-21-15 Kramnik vs E Inarkiev, 2014 (replies)
agb2002: White has the bishop pair for a bishop and a knight. Black threatens Nd5 and to push the c-pawn. The maneuver 30.Rxh6+ gxh6 31.Qxh6+ Kg8 32.Rd1 looks promising. For example, 32... f5 33.exf6 Ra7 34.Rd4 Rh7 35.f7+ Kxf7 (35... Rxf7 36.Rg4+ and mate in two; 35... Kh8 36.Be5+ Qf6 ...
   Nov-20-15 Capablanca vs S Campos, 1927 (replies)
agb2002: White has a bishop for the queen. Black threatens 21... Qxc4 and 21... fxg5. The LSB x-rays the black king, the DSB can control escape squares or even h8 to allow a possible Rh8# and the rooks on the d-file either control or block the corresponding escape squares. These details ...
   Nov-19-15 Sveshnikov vs J Stocek, 2000 (replies)
agb2002: White has two pawns less. Black threatens Bxg7. The black rook prevents 75.Bxe6#. Hence, 75.Rd8: A) 75... Rxd8 76.Bxe6#. B) 75... Re7 76.Rxf8# (or 76.gxf8=R(Q)#). C) 75... Bxg7 76.Rxe8+ Bf8 77.Bxe6+ Kh8 78.Rxf8#. D) 75... c2 76.Rxe8 c1=Q 77.Bxe6# (or 76.Rxf8#, or ...
   Nov-18-15 Ganguly vs H Hernandez, 2008 (replies)
agb2002: <devere>'s solution is far simpler and quicker than mine. The difficulty probably resides in the more or less unusual pattern Qh5-Pg6.
   Nov-17-15 R Rapport vs P Idani, 2014 (replies)
agb2002: The material is identical. The possibility of a killing double check suggests 42.Qxf6+: A) 42... Kxf6 43.Ne8#. B) 42... Kf8 43.Qh8#. C) 42... Kg8 (or 42... Kh7) 43.Rc8 winning the queen.
   Nov-16-15 O Aharon vs Z Rahman, 2014 (replies)
agb2002: Black has a knight for two pawns. The pawn on b4 blocks Ra4#. Hence, 39... Ra5+ 40.bxa5 Ra4#.
   Nov-15-15 Chandler vs I Rogers, 1984 (replies)
agb2002: For some reason I missed 22... Bxe1 but to my surprise it is Stockfish's option (Droidfish on a tablet). After 23.Bb3+ Kf8 24.Nxf1 Na6 25.Qf3+ Ke8 26.Qe4+ Kf8 27.Qf5+ Ke8 28.Qe6+ Kf8 29.Nd3 Black is defenseless against Bf4.
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Calculo, luego existo

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  morfishine: Hello <abg2002>! Nice write-up in the Sunday POTD! I only noticed <25...Bxe4> immediately after posting 25.Rxb4 <25...axb4>. I briefly considered deleting my post then adding this as a possible improvement but decided to leave these separate.

I'm a bit surprised there wasn't more discussion on <25...Bxe4>

Nov-14-12  Patriot: Hi <agb2002>! Good job on your win! I read your comment about losing the exchange before going over your game so when you played 20.Rae1 I figured the rook on f1 was going to be *the* piece. I've lost the exchange quite a few times like this so I'm very suspicious about moves that trap the rook.

I had a question about 11.Nxe7+. What prompted you to play this? That knight is a real thorn thanks to 9...b6?. I wouldn't recommend trading it until forced to do so since the bishop isn't going anywhere. That's similar to what Dan told me once when I captured a pinned piece. He said "You should almost never capture unless they threaten to break the pin or capture the pinning piece, for example." By not capturing, you have time to build your position further while he is left dealing with the situation.

It really looks like you did have a bad day though--we all have them! I just thought I'd mention the knight capture though because that move really stood out with me. But it's probably something you wouldn't have done on any other day!

Thanks for sharing!

Nov-25-12  ShahMaat: comment.New guy on the block.I enjoy the dialogue between the users.I thank you all,and look forward to crossing swords with you!Unrated old fart.
Jan-18-13  Patriot: Hi <agb2002>! I loaded your game into Fritz and followed it. You played a nice game against Houdini! On move 35 (white to play), how did you evaluate the position:

click for larger view

I might think black is a little better, and Houdini agrees after 22-ply. You said 35.Bf1 was better but at 22-ply, it agrees with you! <35.Ba6>

Jan-19-13  Patriot: Hi <agb2002>! <Perhaps the note below the players showing the engine which performed the analysis misled you.> Yes this is exactly what happened--I completely misread that (sorry).

Your plan, having the outside passed pawn, is a good one. Nice game!

Premium Chessgames Member
  Jimfromprovidence: Thanks for the constructive feedback concerning Saturday's puzzle.


Nov-01-13  Patriot: <<agb2002>: <Patriot: <agb2002> <Pattern recognition finds the mate scheme...Therefore...> If the pattern led you to the sequence, I'm impressed. I had to work out a sequence before visualizing the position as a win.> You surely have already noticed that in competition chess you never have enough 'stored' patterns.> Oh definitely! I don't doubt that you solved it this way, but it struck me oddly because I have listened to NM Dan Heisman analyze <CG> problems that I gave him, "live". And I'm quite certain he would not have worked backwards from the pattern you illustrated. And I don't think, even knowing the pattern, I would ever be able to link the pattern to the problem and solve it backwards. That's one heck of a skill!
Premium Chessgames Member
  agb2002: <Patriot>

Thank you! The way you describe the solving process reminds me of Raymond Smullyan logic puzzles in his "The Chess Mysteries of Sherlock Holmes".

Dec-04-13  LoveThatJoker: <Dear CG Friends>

I know this is irregular, but I am stepping outside of the box, for you to view truly one of the most exciting alternate solutions ever posted on the daily puzzle:

G Weissgerber vs A Van Nuess, 1933

With friendship, respect and gratitude for your time in looking at this,


Mar-05-14  LIFE Master AJ: Hello:

Game Collection: "Chess-Games" >Problem of The Day< (2014)

I am trying to update a collection ... with all the puzzle for this year.

Have you missed any days this year ... that you know of? If so, could you help me to locate the missing days?

Mar-06-14  LIFE Master AJ: << Hello LMAJ, according to CG I have posted (or perpetrated) an analysis every day this year with the sole exception of Feb 17th (I don't remember what happened that day). If I can help you just let me know. >>

Cool! Then I will be looking through your posts and trying to update my collection. (I am glad that you don't mind.)

Think you could ask any of your friends and find out what the POTD for Feb. 17th was? (Ask them to leave a comment in my forum.)

Mar-08-14  LIFE Master AJ: S Williams vs The World, 2013

Weren't you a big-time member of the team?

Jun-21-14  Patriot: <agb2002> Thanks! I haven't been logging onto the site much recently--it's been about a week since the last time. I seem to be pulling away from chess more and more these days but that's how things go sometimes. Take care.
Premium Chessgames Member
  agb2002: Yesterday in San Francisco CA.

Today in Lodi CA.

Premium Chessgames Member
Premium Chessgames Member
  agb2002: Now in Baltimore MD. About 10000 miles in three days.

<OCF> I didn't know that song by CCR.

Premium Chessgames Member
  agb2002: Today in Milwaukee WI.

Impressive aerial night view of Chicago.

Premium Chessgames Member
  agb2002: Good, energetic concert by The Black Keys yesterday in Chicago.

About to fly to Cleveland.

Premium Chessgames Member
  agb2002: In Houston now.
Premium Chessgames Member
  OhioChessFan: Where in the world is agb2002?

Premium Chessgames Member
  agb2002: <OhioChessFan: Where in the world is agb2002?>

LOL. Tonight in Buffalo. Tomorrow in New York, London and back to Spain.

Business this time. Tourism next. Perhaps.

Premium Chessgames Member
  OhioChessFan: Shuffle Off to Buffalo-

New York, New York-

London Calling-

Never Been to Spain-

Premium Chessgames Member
  wordfunph: <agb2002> Merry Christmas!
Jan-01-15  CHESSTTCAMPS: <agb2002 from 12/26 POTD <Nice to see you again Phil!>>

Thanks. It's always nice to see you and your analysis, also!

Happy New Year!

Premium Chessgames Member
  agb2002: Happy New Year to you and your family, Phil!
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