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Member since Jun-28-08 · Last seen Sep-16-14
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

   agb2002 has kibitzed 3022 times to chessgames   [more...]
   Sep-16-14 Hjartarson vs Beliavsky, 1988 (replies)
agb2002: Black has the bishop pair for a bishop and a knight. The knight stops 41... Qf1#. Therefore, 41... Rxd2 42.Qxd2 (42.Rxd2 Qf1#) 42... Bxc5+ 43.Bd4 (43.Q(R)e3 Qf1#) 43... Qf1+ 44.Ke3 Qxf3#.
   Sep-15-14 F Olafsson vs Tal, 1971 (replies)
agb2002: The material is identical. Black threatens 22... Rxc7. The white bishop x-rays h7 and the rook on e4 can reach Black's back rank. Hence, 22.Qxc8+ wins a rook because 22... Bxc8 is met with 23.Re8#.
   Sep-14-14 Shirov vs Piket, 1995 (replies)
agb2002: My line A.2.b fails miserably to 29... Qxh3. Shirov's 28.Rxh6+ is a better practical solution although trying to keep the attack with my 28.Qg5 followed by Qh4 and Rf6 or Rhf3 surely wins.
   Sep-13-14 Spassky vs J Penrose, 1969 (replies)
agb2002: White has the bishop pair for a bishop and a knight. The first idea that comes to mind is 37.Bxc5 dxc5 (37... Bxd5 38.Bxb4 wins a pawn; 37... Nxd5 38.exd5 dxc5 39.Qxe5 wins a pawn) 39.Qxe5 and White has two linked passed pawns for a knight. The winning method, if any, would be a ...
   Sep-12-14 J Kraai vs I Novikov, 2004 (replies)
agb2002: Black has a rook for a bishop. White has defense against 27... Qh1+, 27... Qg2+ and 27... Qe3+, and 27... Re2 is met with 28.Nxe2. This last detail suggests 27... Ra4, trying to divert at least one defender: A) 28.Nxa4 Re2 and the threat 29... Qh1# seems unavoidable (29.Bxe2 Qg2#).
   Sep-11-14 Karpov vs Salov, 1995 (replies)
agb2002: White is one pawn ahead. The black bishop prevents 41.h7+ Kxh7 42.g8=Q+. This invites to play 41.Rg6, blocking the bishop and trying to tie the black rook to the defense of the back rank: A) 41... Bxg6 42.Kxg6 and mate in two. B) 41... Rd8 42.Bc7 B.1) 42... Rd1 43.h7+ Kxh7 ...
   Sep-10-14 K R Johansen vs P R Poulsen, 1984 (replies)
agb2002: Black is two pawns ahead. Black can deliver mate by incorporating the knight into attack after a short queen maneuver to avoid the flight of the white king, 27... Qh5+: A) 28.Kxg3 Qg4+ 29.Kh2 Nh4 and mate in four (30.Ng5+ hxg5 31.Bg8+ Rxg8 32.Rg1 Nf3+ 33.Kh1 Qh3#). B) 28.Kg2 Nh4+ ...
   Sep-09-14 Karjakin vs Shirov, 2010 (replies)
agb2002: White has a rook for a bishop and two pawns. Black threatens 37... Rd2. The bishop is hanging. However, 37.Qxe5 loses to 37... Rd2+. A better option is 37.Rh8+, to divert the bishop: A) 37... Bxh8 38.Qe8+ Kg7 39.Qxh9#. B) 37... Kg7 38.Qxe5+ f6 39.R1h7# or 39.Qe7#.
   Sep-08-14 D Daniels vs G Yzhow, 2014 (replies)
agb2002: White has a knight for a bishop and a pawn. The bishop prevents 21.Ne7+, winning the queen. Hence, 21.Rxf6, and if 21... gxf6 then 22.Ne7+, etc.
   Sep-07-14 Timman vs Huebner, 1982 (replies)
agb2002: Black has a bishop for a knight. White threatens 38.Nxc4 and 38.Nd7 followed by Rxg1 (38.Rxg1 Qxb2#). The first idea that comes to mind is 37... Qxb2+ 38.Rxb2 Rxg1+ 39.Ka2 Rd1: A) 40.Qxd1 Nc3+ 41.Kb3 (41.Ka1 Nxd1 42.Nxc4 bxc4 followed by Nxb2 - + [B+P] , 43.Nd3 is impossible due to
(replies) indicates a reply to the comment.

Calculo, luego existo

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 7 OF 7 ·  Later Kibitzing>
Jan-01-12  CHESSTTCAMPS: <Yes, we experience similar price increases here. ...>

I take note of your point about Morroccan fruit being held to lower standards. Giant Foods has carried both Spanish and Morroccan clementines in recent years, the latter usually starting in January and later. Usually, both are delicious. I think that Giant is a reputable outfit and they would take care that their label means what it says. In any case, if there are serious doubts about the source, I think that consumer watchdogs would raise the issue loudly and clearly.

<Similarly, avoid some Italian "products",....>

This is interesting, something I was not aware of. I am a regular consumer of olive oil.

<Thank you, I wish you the same for you and your family and a good New Year.>

Thanks, Happy New Year to you, too.

Premium Chessgames Member
  Patriot: <agb2002> <Hello Patriot, how is the new year treating you? Hope everything is ok with you and your family.> My apologies for not responding to you sooner! I really thought I had responded back and just noticed I haven't!

Everything is going well with me and my family. I appreciate you asking and I hope all is well with you! Keep up the amazing work on the puzzles! Take care.

Premium Chessgames Member
  johnlspouge: Hola, <Antonio>.

Thanks for "dropping by". I hope you and your family are well.

I looked at the reviews of Penrose's "The Road to Reality", which I have not read, and I am daunted. Do I want to spend the time and effort required to understand the book?

I therefore turn your question back to you: what did you think of the book?

Be judicious in your answer, please ;>)

All the best,

Premium Chessgames Member
  johnlspouge: Hi, Antonio.

Your review link was good enough. The book is a must-read. I will let you know how it goes.

Thanks for thinking of me :)

All the best,

Apr-15-12  quantum.conscious: hi <antonio> , thanks for your posts about roger penrose books. i found them very interesting.
Premium Chessgames Member
  agb2002: <quantum.conscious: hi <antonio> , thanks for your posts about roger penrose books. i found them very interesting.>

Thank you! It seems that the interest on Penrose's Road is skyrocketing: I can count three now which means a tremendous increase of 50%! ;-)

Premium Chessgames Member
  ketchuplover: Go Boris!!!!!!!
Jun-11-12  LoveThatJoker: <agb2002> Hi! I'm sending you this note to firstly thank you for your kind and objective acknowledgment on M Beinoras vs H Salo, 2009. I made sure to post my original thank you there!

I had a fellow CG full member, <AlienMath> post a question on High-Mathematics on my forum that I cannot assist on elucidating on, due to the fact that I am not a trained Mathematician.

The question is located directly on this link LoveThatJoker chessforum.

Any help on the elucidation of the concepts of both the Goldberg conjecture and the Riemann hypothesis would be genuinely appreciated.

Thank you!


Jun-12-12  LoveThatJoker: <agb2002> Thank you for the kind reply on my forum!


Jun-14-12  LoveThatJoker: <agb2002> Do you have any idea who this is?

Look at Book 3 here

I will give you anyone you want in exchange for this one.


Jun-15-12  LoveThatJoker: <agb2002> Thank you for getting back to me on that!


Premium Chessgames Member
  Patriot: Hi <agb2002>! <I agree. I still have to rethink my move selection algorithm.> Usually you latch right on to the correct move. Do you consider other candidates or do you usually only post the principle candidate after analysis? For example in today's puzzle, I thought 22.Bh6 was a good candidate and 22.Nb5 was interesting, although I didn't post anything about it initially. 22.Rxf6 was the first move I saw but I didn't see the Kh1, Rg1 idea and thought it was unnecessarily complicated.

By the way, good job on the POTD!

Premium Chessgames Member
  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>

Premium Chessgames Member
  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.
Premium Chessgames Member
  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>

Premium Chessgames Member
  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.


Premium Chessgames Member
  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,


Premium Chessgames Member
  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?

Premium Chessgames Member
  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.)

Premium Chessgames Member
  LIFE Master AJ: S Williams vs The World, 2013

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

Premium Chessgames Member
  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.
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