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Ernest F Pecci
Number of games in database: 30
Years covered: 2001
Overall record: +29 -0 =1 (98.3%)*
   * Overall winning percentage = (wins+draws/2) / total games.

Repertoire Explorer
Most played openings
A40 Queen's Pawn Game (6 games)
D00 Queen's Pawn Game (4 games)
A02 Bird's Opening (3 games)
A45 Queen's Pawn Game (2 games)
B00 Uncommon King's Pawn Opening (2 games)
B21 Sicilian, 2.f4 and 2.d4 (2 games)
C20 King's Pawn Game (2 games)

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(born 1930) United States of America

[what is this?]

Author of Chess: A Psychiatrist matches wits with Fritz. He attended Harvard, but graduated from Tufts University in 1953.


 page 1 of 2; games 1-25 of 30  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. E F Pecci vs Fritz 1-0282001Pecci vs Fritz MatchA45 Queen's Pawn Game
2. E F Pecci vs Fritz 1-0292001Pecci vs Fritz MatchA00 Uncommon Opening
3. Fritz vs E F Pecci 0-1342001Pecci vs Fritz MatchB00 Uncommon King's Pawn Opening
4. Fritz vs E F Pecci  0-1382001Pecci vs Fritz MatchA40 Queen's Pawn Game
5. E F Pecci vs Fritz  1-0372001Pecci vs Fritz MatchE34 Nimzo-Indian, Classical, Noa Variation
6. E F Pecci vs Fritz  1-0252001Pecci vs FritzB21 Sicilian, 2.f4 and 2.d4
7. E F Pecci vs Fritz 1-0372001Pecci vs Fritz 5 MatchC20 King's Pawn Game
8. E F Pecci vs Fritz 1-0252001Pecci vs Fritz MatchD05 Queen's Pawn Game
9. E F Pecci vs Fritz 1-0272001Pecci vs Fritz MatchD00 Queen's Pawn Game
10. Fritz vs E F Pecci 0-1282001Pecci vs Fritz MatchA40 Queen's Pawn Game
11. E F Pecci vs Fritz 1-0272001Pecci vs Fritz MatchC50 Giuoco Piano
12. E F Pecci vs Fritz  1-0282001Pecci vs FritzC26 Vienna
13. E F Pecci vs Fritz ½-½322001Pecci vs Fritz 5 MatchA45 Queen's Pawn Game
14. Fritz vs E F Pecci 0-1362001Pecci vs Fritz MatchA40 Queen's Pawn Game
15. E F Pecci vs Fritz 1-0222001Pecci vs Fritz MatchD00 Queen's Pawn Game
16. E F Pecci vs Fritz 1-0222001Pecci vs Fritz MatchA02 Bird's Opening
17. E F Pecci vs Fritz  1-0372001Pecci vs Fritz MatchB12 Caro-Kann Defense
18. Fritz vs E F Pecci  0-1292001Fritz (Computer) vs PecciA40 Queen's Pawn Game
19. E F Pecci vs Fritz  1-0272001Pecci vs Fritz MatchB09 Pirc, Austrian Attack
20. E F Pecci vs Fritz  1-0292001Pecci vs Fritz MatchD00 Queen's Pawn Game
21. E F Pecci vs Fritz  1-0282001Pecci vs Fritz MatchA02 Bird's Opening
22. E F Pecci vs Fritz 1-0222001Pecci vs Fritz MatchB02 Alekhine's Defense
23. Fritz vs E F Pecci 0-1242001Pecci vs Fritz Match 5/6A40 Queen's Pawn Game
24. E F Pecci vs Fritz  1-0282001Pecci vs Fritz MatchC20 King's Pawn Game
25. E F Pecci vs Fritz 1-0272001Pecci vs Fritz MatchD00 Queen's Pawn Game
 page 1 of 2; games 1-25 of 30  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Pecci wins | Pecci loses  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Aug-13-06  Knight13: A person who understands the weaknesses of chess computers.

I'll be submitting more games of his. Hope you guys enjoy it!

Aug-13-06  Knight13: All games are played in a mixture of

Fritz 5 and 6, otherwise noted.
All games ending in resignation are either Fritz is down 5.00 points or more.

All games with Pecci playing Black is against Fritz 6. (Games submitted)

Aug-13-06  Knight13: See what Chessbase have to say about his book and the games:
Premium Chessgames Member
  ganstaman: Wow, does this stuff work against human opponents? I gotta start playing the Bird like this, then.
Oct-23-06  jedram: From's gambit is ok for black
Dec-02-06  Rubenus: <ganstaman> Computers usually don't have his variation of the bird-opening in their opening book, so this works well against them. I don't think that it works against humans. Try it against Jester or LittleChesspartner, that's fun.
Premium Chessgames Member
  JointheArmy: There are alot more people who can beat Fritz on a regular basis than Nemeth and this guy.
Dec-22-06  jackmandoo: this guy is better than kramerick because he beat fritz more.
Jan-17-07  GufeldStudent: <jackmandoo> He beat a different version of Fritz operating on a much slower computer. Your reasoning is a little flawed. Also, chess skill is not always transitive. If this guy was better than Kramnik, wouldn't he---most likely---be a GM?
Mar-06-07  Kings Indian: No this would not work against humans. Fritz's mistake in all of the games are O-O??, why would you castle directly into his attack... Better would just be O-O-O where if white keeps trying to attack on the kingside black can easily do whatever he wants with it without getting mated since the king is on the other side.
Mar-27-07  Themofro: One possible reason for his trouncing of Fritz is the opening, the Bird stonewall is one the best openings to play against a computer or really any ultra tactical but no great shakes at positional player, it's if played correctly a dutch stonewall with an extra tempi which can't be all that bad can it?

Also, <Jedram> We recently wrapped up a discussion on the From's gambit on the A02 page for the bird's in case youre interested in it.

<King's Indian> castling 0-0 is dubious indeed, however computer programs by and large (even current ones) seem to underestimate the stonewall.

<Rubenus> The Bird Stonewall is a very good system, however it has two built in weaknesses, the hole at e4, and the q-side bishop, if you can fix those then you should have an excellent game, it is a solid and good system, although i think that d4 should be delayed and let black commit a bit to something else, then transpose into a stone wall.

Also for all Bird's players or those interested in the Bird's, i've posted a mini repertoire for the Bird's opening at the Henry Edward Bird page, also GM Henrik Danielsen (the strongest (and only) GM that currently plays the Bird) has a website where he gives lectures, teaches chess, etc. very helpful, also includes lots of information about the Bird's opening in specific, lots of interesting things on there including several excellent games arising from the Danielsen Recipe variation and transposing into a stonewall. His website is and it's highly reccomended.

Mar-29-07  Themofro: Another example of a computer getting trounced by the Bird Stonewall is: B Alterman vs Deep Fritz, 2000 it's an incredible game.
Apr-17-07  Knight13: There you go. New games with Pecci winning against Fritz WITHOUT using the stone-wall formation.
May-25-07  IMDONE4: Number one, does anyone kno wat time constraints these games were played on? And number two, what is the actual strength of this psychiatrist, whose moves seem to be better than an amateur?
Jun-04-07  argishti: wat a HERO
Jun-15-07  Knight13: <jedram: From's gambit is ok for black> See games

E F Pecci vs Fritz, 2001

E F Pecci vs Fritz, 2001

E F Pecci vs Fritz, 2001

for openings starting with From's Gambit.

Aug-28-07  adnol: Who is this guy? I've never heard of him before.
Aug-28-07  Giearth: Urgh! 97.8% overall record?! Unbelievable! Must be an interesting (or a 'mythical') person!? ;)
Aug-28-07  Jim Bartle: Maybe Pecci shot Fritz in the foot.
Aug-28-07  Jim Bartle: I just noticed that games are listed as round 79, 87, 123. Wonder what happened in the 100 games not listed here...
Dec-11-07  parisattack: <Themofro: > Thanks for the Bird pointers! Bird's was the first opening I played and I had wonderful luck with it; thus a fondness 40 years later for it. In the grand scheme of things I think the first move is a little early for the committal f4 - but if you don't forget development and watch the square weaknesses its as good as anything else under 2400 elo.

I also definately agree with holding back d4 if you're going for a Stonewall. The extra move over the Black Stonewall has little or no initiative value but offers developmental flexibility.

Jan-08-08  Kombi: Amazing stuff! I was actually happy to see something like this.... maybe because at some point I became one of those non-believers. Now I see some hope and understand better what to do and how to play against computers and computer-like young players. ;) Thanks for posting those games!
Jan-08-08  MichAdams: <I thought love was only true in fairy tale. Meant for someone else but not for me.
Love was out to get me
Thats the way it seemed.
Disappointment haunted all my dreams.

Then I saw her face, now Im a believer
Not a trace of doubt in my mind.
I'm in love, I'm a believer!
I couldnt leave her if I tried.>

Jan-17-08  Knight13: <Jim Bartle: I just noticed that games are listed as round 79, 87, 123. Wonder what happened in the 100 games not listed here...> He played over 200 games, all win against Fritz (with one draw NO LOSSES) and I don't feel like submitting that many games so I picked the most interesting ones.
Jan-17-08  Jim Bartle: Very impressive, then.
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