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Carl Jaenisch
C Jaenisch 

Number of games in database: 68
Years covered: 1838 to 1868
Overall record: +20 -36 =12 (38.2%)*
   * Overall winning percentage = (wins+draws/2) / total games in the database.

With the White pieces:
 King's Gambit Accepted (12) 
    C33 C39 C34 C35
With the Black pieces:
 King's Gambit Accepted (8) 
    C39 C33 C37 C38 C35
 Giuoco Piano (7) 
    C53 C54
 Scotch Game (4) 
Repertoire Explorer

NOTABLE GAMES: [what is this?]
   Shumov vs C Jaenisch, 1845 0-1
   Shumov vs C Jaenisch, 1854 0-1
   C Jaenisch vs A Mongredien, 1851 1-0
   C Jaenisch vs Shumov, 1854 1/2-1/2
   C Jaenisch vs Staunton, 1851 1-0
   C Jaenisch vs von der Lasa, 1842 1-0
   C Jaenisch vs A Petrov, 1852 1/2-1/2

NOTABLE TOURNAMENTS: [what is this?]
   Jaenisch - Staunton (1851)

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(born Apr-23-1813, died Mar-17-1872, 58 years old) Russia

[what is this?]

Carl Ferdinand Andreyevich von Jaenisch was born in Vyborg*. A major in the Russian army in 1838, he started writing a book on chess openings and two years later left the army to concentrate full-time on the task. After four years he published 'Analyse nouvelle des ouvertures du jeu des echecs' in 1842-43. This work together with Paul Rudolf von Bilguer 's 'Handbuch' marked the beginning of modern opening theory.

*Wikipedia article: Vyborg

Wikipedia article: Carl Jaenisch

Last updated: 2021-01-28 09:06:15

 page 1 of 3; games 1-25 of 68  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Kieseritzky vs C Jaenisch ½-½501838corrD20 Queen's Gambit Accepted
2. C Jaenisch vs Kieseritzky  1-0221839correspondenceC33 King's Gambit Accepted
3. von der Lasa vs C Jaenisch  1-0211842BerlinC38 King's Gambit Accepted
4. NN vs C Jaenisch 1-0271842BerlinC30 King's Gambit Declined
5. W Hanstein vs C Jaenisch 1-0181842BerlinC37 King's Gambit Accepted
6. W Hanstein vs C Jaenisch 1-0281842BerlinC31 King's Gambit Declined, Falkbeer Counter Gambit
7. von der Lasa vs C Jaenisch 1-0201842Berlin Congress GCFC35 King's Gambit Accepted, Cunningham
8. von der Lasa vs C Jaenisch 1-0271842BerlinC39 King's Gambit Accepted
9. C Jaenisch vs von der Lasa 1-0501842BerlinA85 Dutch, with c4 & Nc3
10. C Jaenisch vs von der Lasa ½-½351842BerlinA85 Dutch, with c4 & Nc3
11. C Jaenisch vs NN 0-1361842BerlinC53 Giuoco Piano
12. W Hanstein vs C Jaenisch  1-0391842Berlin m1C01 French, Exchange
13. W Hanstein vs C Jaenisch 1-0251842Berlin m1C01 French, Exchange
14. C Jaenisch vs von der Lasa 1-0221842UnknownC35 King's Gambit Accepted, Cunningham
15. C Jaenisch vs Bledow  0-1281842BerlinC24 Bishop's Opening
16. C Jaenisch vs von der Lasa  0-1361842BerlinC53 Giuoco Piano
17. von der Lasa vs C Jaenisch  1-0271842BerlinC30 King's Gambit Declined
18. von der Lasa vs C Jaenisch 1-0411842?C01 French, Exchange
19. von der Lasa vs C Jaenisch 1-0251842BerlinC43 Petrov, Modern Attack
20. A Petrov vs C Jaenisch 1-0261844St. PetersburgC43 Petrov, Modern Attack
21. C Jaenisch vs A Petrov 1-0341844St. PetersburgC40 King's Knight Opening
22. Shumov vs C Jaenisch 0-1181845St PetersburgC53 Giuoco Piano
23. Shumov vs C Jaenisch  0-1491849 Russia mC39 King's Gambit Accepted
24. C Jaenisch vs Shumov  0-1521849 Russia mC33 King's Gambit Accepted
25. Shumov vs C Jaenisch  0-1341849Russia mC77 Ruy Lopez
 page 1 of 3; games 1-25 of 68  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Jaenisch wins | Jaenisch loses  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-25-04  tacticsjokerxxx: True.. 1.c4-b5! is an underrated response to 1.c4, 1.c4 works so well because people haven't figured out that -b4 is the correct response yet.
May-25-04  AgentRgent: I looked at 1.c4 b5 quite a bit as a possible response to the English. I play the Benko against 1.d4 and thought play would be similar (Actual transposition is possible, but unlikely). I found that even though black has similar play on the queenside, the lack of the pawn on d5 was actually a benefit to white.
May-25-04  Lawrence: <tacticsjokerxxx>, "people haven't figured out that -b4 is the correct response yet." That's not surprising.
Oct-02-04  Knight13: He had a bad Loss against NN since 1842. But his attacking strategy is well played.
Oct-02-04  fgh: 1 c4 b5 doesn't seem very usefull to me.
Oct-03-04  Kean: First time I hear about the 1.c4 b5 gambit, I guess the idea could be a bishop on b7 , pawn on d5 and the rapid sizing of e4.
Dec-11-04  DanielBryant: Anybody here ever used it?
Nov-05-05  royspeck: I played the Jaenisch variation of the Evans gambit against an advanced player. I won the game with a powerful attack. I would suggest an example of this variation should be put in Jaenisch games.
Aug-11-06  BIDMONFA: Carl Friedrich Von Jaenisch


Sep-15-06  FHBradley: The biographical data on Jaenisch is (are?) slightly misleading. Technically speaking, if I may put it this way, he was Russian, but in fact he was (and always regarded himself as) a Finn. Anyone with knowledge of the Finnish language can easily figure out the linguistic origin of his surname.
Sep-15-06  moppa: Oh, he was a Finn? (Finland wasn't actually an independent country back then) I didn't recognize that from the name - but now when I know it, it's propably written Jänis (a with dots is often replaced with ae)in Finnish. Jänis is a rabbit in english. However, Carl Friedrich isn't very Finnish name, altough there were quite a few Swedish-sound names in the 1800's
Oct-25-07  melianis: Vyborg was quite a mix of nationalities back then, finns, karelians, swedes russians, germans, estonians, tatars, others. Nice to know that he regarded himself a finn.
Feb-12-08  brankat: C.F.Jaenisch's work on openings, together with that of P.R.von Bilguer's ("Handbuch") is regarded as the birth of modern openings' theory.
Feb-12-08  sigi: <brankat>

During the preparation of both books their authors were in close contact. In 1842 Jaenisch visited twice Berlin and analysed openings with von der Lasa:

"Der Austausch meiner Ideen mit dem russischen Gaste geschah weniger contradictorisch in der gespielten Partie, als gemeinsam auf dem theoretischen Gebiete der Eröffnungen. Ich darf wohl behaupten, dass unsere, unter zwei Verfassern gewiss seltene Vereinigung der Forschung, welche durch fortgesetzte Correspondenz seitdem unterhalten worden ist, zu sehr günstigen Resultaten für die Vervollkommnung des Bilguer'schen Werkes und für die Analyse nouvelle, deren erster Band 1842 in Dresden gedruckt wurde, geführt hat."

Source: Lasa's "Berliner Schach-Erinnerungen", page 25.

Feb-12-08  brankat: <sigi> Thank You so much for this information. I've been wondering about it myself.

All 3 were of approximately the same generation, and involved in very similar kind of work, it would have seem natural for them to be in contact.

It was quite fortunate that Mr.v.d.Lasa was not only a very talented master, but also a capable analyst, a far-sighted person. And above a loyal friend to P.R.Bilguer.

We all owe a debt of gratitude to these Pioneers of Chess theories.

Aug-11-09  WhiteRook48: Happy birthday!
Sep-15-10  FHBradley: Happy Birthday Mr. Jänisch! Serving in the Russian army as an engineer-officer, he could retire at the ripe age of thirty, after which he dedicated the rest of his life to chess and mathematics. A nice career.
Premium Chessgames Member
  Penguincw: Happy Birthday Carl Friedrich Von Jaenisch!
Apr-11-12  brankat: Happy Birthday!
Oct-22-13  Karpova: The 'British Chess Magazine' Almanac, p. 1, March 1882 claims he died March 17, 1872 and Gaige (p. 191) agrees.
Mar-13-15  zanzibar: A picture of him can be found here:

Mar-14-15  Retireborn: <z> Reminds me somewhat of Jaan Ehlvest there.
Mar-14-15  zanzibar: Ha! Good catch <Retireborn>.
Apr-11-16  TheFocus: Happy birthday, Carl Jaenisch.
Premium Chessgames Member
  Gottschalk: very nice win:

[Event "St.Petersburg"]
[Site "?"]
[Date "1854.??.??"]
[Round "?"]
[White "Shumov, Ilya"]
[Black "Jaenisch, Karl"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "38"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. exf6 dxc4 8. Qe2+ Be6 9. fxg7 Rg8 10. cxd4 Nxd4 11. Nxd4 Bxd4 12. Qh5 Qf6 13. O-O Rxg7 14. Qb5+ c6 15. Qxb7 Rxg2+ 16. Kxg2 Qg6+ 17. Kh1 Bd5+ 18. f3 Bxf3+ 19. Rxf3 Qg1# 0-1

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