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Louis F Stumpers
Number of games in database: 54
Years covered: 1932 to 1969
Overall record: +13 -31 =10 (33.3%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.

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Most played openings
D94 Grunfeld (3 games)
E60 King's Indian Defense (2 games)
B59 Sicilian, Boleslavsky Variation, 7.Nb3 (2 games)
C65 Ruy Lopez, Berlin Defense (2 games)
D45 Queen's Gambit Declined Semi-Slav (2 games)

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(born Aug-30-1911, died Sep-27-2003, 92 years old) Netherlands

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 page 1 of 3; games 1-25 of 54  PGN Download
Game  ResultMoves Year Event/LocaleOpening
1. L Stumpers vs J Lehr  1-019 1932 EindhovenD18 Queen's Gambit Declined Slav, Dutch
2. Prins vs L Stumpers  1-039 1936 NED-ch prelimB20 Sicilian
3. E Sapira vs L Stumpers 0-125 1938 NBSB - FlandersD94 Grunfeld
4. L Stumpers vs E Spanjaard  1-055 1938 Dutch Ch prelimE02 Catalan, Open, 5.Qa4
5. J van den Bosch vs L Stumpers  ½-½58 1939 NED-ch11A48 King's Indian
6. L Stumpers vs S Landau 0-141 1939 NED-ch11D33 Queen's Gambit Declined, Tarrasch
7. A Wijnans vs L Stumpers  1-036 1939 NED-chB05 Alekhine's Defense, Modern
8. H van Steenis vs L Stumpers  1-025 1939 NED-ch11B02 Alekhine's Defense
9. A J van den Hoek vs L Stumpers  1-027 1941 BondswedstrijdenB10 Caro-Kann
10. T van Scheltinga vs L Stumpers 1-035 1942 NED-ch12D94 Grunfeld
11. W Wolthuis vs L Stumpers  ½-½52 1946 NED-ch prelim IC58 Two Knights
12. C B van den Berg vs L Stumpers  1-058 1946 NED-ch prelim ID19 Queen's Gambit Declined Slav, Dutch
13. L Stumpers vs H van Steenis 0-124 1946 NED-ch prelim ID28 Queen's Gambit Accepted, Classical
14. G Fontein vs L Stumpers  ½-½26 1946 NED-ch prelim ID94 Grunfeld
15. L Stumpers vs Cortlever  ½-½50 1946 NED-ch prelim IE60 King's Indian Defense
16. L Stumpers vs J H Marwitz  1-040 1946 NED-ch prelim ID31 Queen's Gambit Declined
17. L Stumpers vs Euwe 0-130 1946 NED-ch prelim IE60 King's Indian Defense
18. Tartakower vs L Stumpers 1-024 1947 Int BD74 Neo-Grunfeld, Nxd5, 7.O-O
19. L Stumpers vs H van Steenis  0-133 1947 Int BD23 Queen's Gambit Accepted
20. L Stumpers vs Grob 1-060 1947 Int BA55 Old Indian, Main line
21. V Soultanbeieff vs L Stumpers  ½-½46 1947 Int BD96 Grunfeld, Russian Variation
22. J T Barendregt vs L Stumpers  0-126 1948 NED-ch14C86 Ruy Lopez, Worrall Attack
23. L Stumpers vs A Vinken  0-133 1948 NED-ch14E21 Nimzo-Indian, Three Knights
24. L Stumpers vs C Vlagsma  0-145 1948 NED-ch14C65 Ruy Lopez, Berlin Defense
25. L Stumpers vs T van Scheltinga  1-047 1948 NED-ch14C97 Ruy Lopez, Closed, Chigorin
 page 1 of 3; games 1-25 of 54  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Stumpers wins | Stumpers loses  

Kibitzer's Corner
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Premium Chessgames Member
  Tiggler: Based on the puzzle that <al wazir> linked to, try the following. Players have to take turns to play. The first player says "I was off by 10." The second player says "I was correct."

What number did the second player chose?

Aug-13-15  weary willy: er ... I was off by 33
Premium Chessgames Member
  al wazir: Getting back to bishop's tours, here (p. 207) is that claim that a majority tour is impossible on a 7x7 board:

I don't know graph theory, but here is a counter-example (I've used standard algebraic notation and a standard chessboard, assuming that the 8th rank and 8th file are removed):

a1 g7 f6 e7 d6 c7 a5 b4 a3 c1 d2 e1 g3 f2 g1 a7 b6 c5 e3 f4 e5 d4 c3 b2 (a1)

Finding a minority tour is easier yet.

Premium Chessgames Member
  Tiggler: Proving that a knight's tour is impossible on a 7x7 board is easy: The 49th move has to end on the starting square. But the knight lands on alternate colors, and so cannot land on the starting square after an odd number of moves. Probably you already covered that case, so sorry if I missed it.
Premium Chessgames Member
  TheFocus: I used to be the world's youngest person.

For about 20 seconds.

Premium Chessgames Member
  TheFocus: Do impotent men watch soft porn?
Premium Chessgames Member
  WannaBe: This is great, maybe I'll actually be able to tile my kitchen now. Which pattern do y'all think look the best??

Premium Chessgames Member
  al wazir: <WannaBe: I'll actually be able to tile my kitchen now.> I posted this link on the <Kenneth Rogoff> page -- I guess it should have been here:
Premium Chessgames Member
  Sneaky: OK fellow Stumpers brainiacs, what's your opinion of this proposition:

Sinquefield Cup: AA Battery

<How many players will Viswanathan Anand (2816) and Levon Aronian (2765) both score the same result against?

For example, if both of them draw Carlsen, that will count as one player.

For purposes of this bet, any playoff games will not factor in the result of this bet.>

Now let's just pretend that Aronian and Anand are equals. The Sinquefield Cup is a SRR so it's very likely that Aronian might have white against MVL while Anand has Black against him. That alone could change things.

But we all know intuitively that these guys draw like crazy so in a lot of columns it will be "Aronian drew X and Anand drew X as well."

So what's the likely expectation? How many opponents will these two score the same result on? Right now I can get 35:1 odds on "0 or 1 player(s)" but by my analysis the real odds should be more like 10,000:1.

Premium Chessgames Member
  al wazir: Follow-up on NYTimes puzzle:
Premium Chessgames Member
  TheFocus: Do mimes observe a brief moment of talking when a fellow mime passes away?
Premium Chessgames Member
  TheFocus: Imortality jokes never get old.
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  TheFocus: I could never figure out why my career as a tpyist came to an ned.
Premium Chessgames Member
  TheFocus: What should you give the woman who has everything?

How about my phone number?

Aug-26-15  diceman: <TheFocus: I could never figure out why my career as a tpyist came to an ned.>

Looks like you were trained on:

<Thn quick browe fox jumps ovnr thn lazy dog>

Aug-26-15  diceman: <TheFocus: What should you give the woman who has everything?

How about my phone number?>

...she had it already.

Premium Chessgames Member
  TheFocus: I sought advice from a numerologist, but nothing she said added up.
Premium Chessgames Member
  al wazir: <Sneaky: But we all know intuitively that these guys draw like crazy>. After 20 games (four rounds) there have been nine draws.
Premium Chessgames Member
  TheFocus: <al wazir> <Sneaky> <But we all know intuitively that these guys draw like crazy>. After 20 games (four rounds) there have been nine draws.>

9 out of 20??

Man, that is crazy!

Premium Chessgames Member
  TheFocus: I am correct 97 per cent of the time.

Who cares about the other 4 per cent?

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  TheFocus: Research shows that 80 per cent of men don't know how to use condoms.

These men are called DADS.

Premium Chessgames Member
  TheFocus: Pronouns: like normal nouns, just highly trained.
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  TheFocus: What's got a trunk, four legs and lots of keys.
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  TheFocus: Dang! I forgot to put in the punch line.

"A piano in a tree."

Premium Chessgames Member
  TheFocus: Quantum mechanics: the dreams stuff is made of.
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