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|Jan-16-10|| ||Phony Benoni: Morphy's Law!|
|Jan-16-10|| ||weisyschwarz: I wonder what <RV> and Rybka will show us here. Nice pun.|
|Jan-16-10|| ||dumbgai: Morphy's Law, hehe.|
|Jan-16-10|| ||patzer2: At http://en.wikipedia.org/wiki/Murphy... is a history of the phrase Murphy's law, which is usally stated "Anything that can go wrong will go wrong."|
The article attributes the source of the phrase to Captain Edward Murphy, a development engineer who coined it while working for the U.S. Air Force in 1948 and 1949 at what is now Edwards AFB during the testing of g-forces in rapid deceleration using a rocket sled mounted on a rail track.
|Jan-16-10|| ||RandomVisitor: The game might end this way:
57.Rb7 b3 58.Ra7+ Kb2 59.Rb7 Rc6 60.Rb4 Ka2 61.Rb7 b2 62.Ra7+ Kb1 63.Kd2 Rd6+ 64.Ke2 Rd5 65.Ke3 Kc2 66.Rc7+ Kb3 67.Rb7+ Kc3 68.Rc7+ Kb4 69.Rb7+ Rb5 etc.
|Jan-16-10|| ||Once: Don't you just hate it when one of your heroes has a bad day at the office? It's a bit like reading Titus Andronicus or listening to Maxwell's silver hammer.|
Here Morphy tries a little too hard to force an attack and the game fizzles into a lost pawn endgame. The problem seems to be the weakness of his queenside pawns, so that when black 32...Rd2, Morphy cannot defend both of his a and b pawns. One has to be lost. De Reviere's 31...b5 prevents white from saving his b pawn with Nc4.
Add to this the fact that the passed d pawn has insufficient support and it is not hard to see why black sweeps up.
I have a personal theory about Murphy's Law - "If something can go wrong, it will". Its main purpose is to counter the overconfident who can think that they are immune to all risks. So Murphy's Law reminds us that bad things can and do happen, and that we ought to prepare. We should not assume that something will go right.
But there is a flip side to Murphy's law. It emphatically does not mean that the worst outcome will always happen. That is demonstrably not true. If you drop your bread it does not always fall butter side down. The other queue doesn't always move faster. You-know-what doesn't always happen.
The trick is that we tend to remember the bad outcomes, or outcomes which confirm a personal belief. So it appears that they are more frequent than they really are. Coincidences happen, but no more frequently than statistical chance would suggest. We just remember them more.
So the Once variation of Murphy's Law is "If something can go wrong, it will go wrong ... sometimes."
|Jan-16-10|| ||Sneaky: <It's a bit like reading Titus Andronicus or listening to Maxwell's silver hammer.> ROFL ... well stated!|
|Jan-16-10|| ||schroedingers cat: Amazing Pun, hats off to CG.com!|
|Jan-16-10|| ||sfm: "Paul Morphy beat Jules Arnous De Riviere 14 to 3, with 1 draw"|
De Riviere, a close friend of Morphy, can be proud of this score - but of course it is not sure he'd be able to do as well as if it had been serious match conditions.
But it is clear from this game that de Riviere was a very strong player.
|Jan-16-10|| ||RandomVisitor: After 55.Ra8!
click for larger view
Rybka 3: <6-piece tablebases>
<[-1.33] d=39 55...Kc3> 56.Rb8 Re5 57.Rc8+ Kb3 58.Ra8 Kc4 59.Rd8 Rf5 60.Rc8+ Kd4
|Jan-16-10|| ||NARC: I like De Riviere's play in this game.
I have played a lot of KGA both sides
and it's nice to see how De Riviere
returns the pawn before the queens are
traded off, minds the field f7, uses
whites attempts to regain the pawn and activate the dark squared bishop
as free opening of rook files against whites king. Looks very modern to me.
|Jan-16-10|| ||kevin86: A rare Paul Morphy loss in a non-odds game.|
|Jan-16-10|| ||johnlspouge: < <Once> wrote: But there is a flip side to Murphy's law. [snip] <The other queue doesn't always move faster.> [snip] The trick is that we tend to remember the bad outcomes, or outcomes which confirm a personal belief. So it appears that they are more frequent than they really are. Coincidences happen, but no more frequently than statistical chance would suggest. We just remember them more. >|
When I first read your post, I thought you knew the Queueing Paradox, beloved to probabilists, but upon re-reading, probably not, so here it is: loosely, in fact the other queue usually does move faster. Upon your arrival, the probability is 1/2 that you join the slower of two equally sized queues. Because you spend more time in the slower queue, <if you count the time spent in the queue> (rather than just which queue you join) the other queue usually does move faster!
On the same vein, the following is another ridiculous factoid confirming Murphy's Law. You might think that if you choose a month at random, the probability that the 13-th is a Friday is 1/7. Because of the rules about leap years, however, there are an even 26 280 weeks every 400 years. The number 26 280 is not divisible by 7, so the probability of a 13-th being a Friday is not 1/7. In fact, the 13-th of the month is more likely to fall on a Friday than any other day of the week. (A.M. Gleason et al. (1980) The William Lowell Putnam Mathematical Competition, Problems and Solutions 1938-1964, p. 302, which also refers to the American Mathematical Monthly (1933) 40:607 and Emanuel Parzen (1960) Modern Probability Theory and Its Applications p. 26.)
|Jan-16-10|| ||Phony Benoni: <Once> Murphy's Law is not to be taken so literally; it's meant to be a wry commentary. Besides, Murphy was an optimist.|
|Jan-16-10|| ||holland oats: 17...Bxd4+! 'The light at the end of the tunnel is the headlamp of an oncoming train.'|
|Jan-16-10|| ||waustad: They played 18 times with only 1 draw.|
|Jan-16-10|| ||Pawnage: If you discount counterfactuals, then Murphy's Law is a truism: that which can happen, will; good or bad.|
|Jan-16-10|| ||randomsac: Nice game with a great pun. I'm surprised that Morphy lost this regular game.|
|Jan-16-10|| ||SirChrislov: Morphy played 1.e4 and lost?? this game must be a fake.|
|Jan-17-10|| ||Chessmensch: Best statement of Murphy's Law: Don't mess with Mrs. Murphy.|
|Feb-01-10|| ||SugarDom: "schroedingers cat: Amazing Pun, hats off to CG.com!>|
Another feather in the pirate's cap...
|Jun-15-14|| ||ChessYouGood: What went wrong was that Morphy, one the most overrated players ever, got cleanly outplayed.|
|Jul-05-14|| ||Ke2: <SirChrislov> Apparently this is his only loss in the white side of KGA in the database, that record is 24+, 1=, 1-|
|Jan-05-19|| ||Messiah: 5.h4 or 5.d4 are also possible.
The immediate 6.d4 was considerable.
7.♕b3 leaves white in an equally bad position.
7...♘c6, and white lacks very good replies.
8.g3 was probably a little bit better, by not disassembling white's kingside immediately, however, black is better.
8...♘bc6 was considerable.
10...♗h3! was the best, I feel.
12.♕d2 was considerable, but white's position is already worse.
12...♘bc6 13.gxh6 ♗xh6 14.♗xh6 ♖xh6 was much better.
A quick draw was 14...♕h4 15.♘xf7 (the risky-looking 15. ♗xf7+!? reaches nothing for white, for example 15...♗xf7 16.♘xf7 ♕g4+ 17.♔h2 ♖f8 18.gxh6 ♗f6! seems to be dangerous) 15...♖f8 16.♖f4 ♕e1+ 17.♖f1
The immediate 16.♗xg5 was obvious to play, it is a little bit annoying that Morphy went for the slow 16.♘a3 instead of this very concrete move.
It seems here I opened Pandora's box, inadverently. As a human being I am tempted to play 16...f6 in order to restrict white's central play, and to prepare ♗f7. Well, the digital monster opts for 16...♘bc6, and its principal continuation is 17.♗d2 ♘a5 18.♖ae1 ♘xc4 19.♘xc4 ♖h6 20.♖f2 f6 21.e5 ♔d7 22.exf6 ♗xf6 23.♖ef1 ♘d5 24.♘e3 ♘xe3 25.♖xf6 ♘xf1 26.♖xh6 ♘xd2 27.♖h7+ ♔e6 28.♖xh5 ♖e8. No organic creature (except maybe very strong ones, such as IMs and GMs) would play such lines, ever. Given that it is highly improbable that I encountered a bug or weakness in Stockfish (especially in this depth, it calculated down to 61 plies), we must agree that the deepness of the ideas of this position vastly exceeds my understanding of chess. Black has good hopes, certainly.
19.♘f4 could be considered.
The silicon monster suggests an immediate 19...d5...
...and it once again thinks 20...d5 21.exd5 ♘d7 is a tiny bit better for black! I fail to see exactly why.
|Jan-05-19|| ||Messiah: 21...♗g6 is also possible.
24...♗e2 leads nowhere.
27.♖e6 ♘c8 28.♖h6 ♘d6 29.♘e6+ ♘xe6 30.♗xe6 and white is OK.
28.♗xf5 ♘xf5 29.♖h5 ♘xd4 is also possible, because of 30.♖h8, although black's play is easier.
The silicon monster suggests 30...b5, and in this case 31.♔f2?? fails, because the ♘c4+ double attack is impossible after black is taking the ♙b2. The computer's point is that after 31.♖f6 ♖d1+ 32.♖f1 the black ♖ can go to freely to the e-file via d3 or d5, because white's ♖e1 enables black's ♖ to attack the ♙b2 via d2. If any of you are high-rated players, please tell me your opinion, if this is possible to spot over the board.
31...♖d2+ 32.♔e3 ♖xb2 33.♖h7 =, because of 33...♔d6?? ♘c4+ +-, and 33...♖xa2 ♖xe7 =.
32.♔e2 is calm, and it seems somehing like equality: 32...♔d6 33.b4 ♖e5+ 34.♔d3 ♖xe6 35.♖xe6+ ♔xe6 36.♔d4 leads nowhere, 32...♖e5+ 33.♔d3 ♔d6 34.♘c2 ♖xe6 35.♖xe6+ ♔xe6 is also most probably a draw. But how could black prove superiority without taking the ♙e6? Probably 32...♖e5+ 33.♔d3 a5 is the way, but that is super-calmly avoidable by playing 33.♔d2, preventing or at least delaying the black ♖ to enter the first rank. 33...♖g6 34.♘c2 ♖g2+ 35.♔d3 makes equally not much progress for black. 33...a5 34.♘c2 seems also being defendable. Also 33...♔d6. 32...a5 seems to fail to the ever-present 33.♘c2 - it seems to be a very good move in plenty of the discussed positions! Moves like 33...♖g6, ♖f6, a6, ♔b6, ♘f5, ♘g8 are all seem to be insufficient to squeeze out anything from this position. Thus, I am almost convinced that 32.♔e2 holds equality.
35.♘e4+ is probably the most tenacious attempt to defend. 35...♔e5? leads to a draw with 36.♖h7 ♔xe6 37.♘c5+ with a perpetual; while 35...♔c7?? makes white better after 36.♘d6!, with an eventual ♘b7+, losing the black ♘. After 35...♔d5, with perfect play, it is almost surely winning for black. Possible continuations are 36.♖h7 ♖b4 (36...♘f5? 37.e7! =) 37.♘g5 ♔d6 with lots of technical work to do, and 36.♖h5+?! ♔xe6 37.a4, in which white tries to exploit the open position of the black ♔. But again: both of these lines are suspected to be won eventually for black, however, finding a forced win is non-trivial (for me). The immediate 36.a4?! ♖b3+ 37.♔f4 ♔d4! seems to be the easiest path for black.
39...d4 seems to be more straightforward, but the actual 39...♔d7 also wins of course
Both 44...♖e4 and 44...♖c4 wins, but the latter is a longer and tougher road, as the white ♔ enters the e-file. This is very difficult to calculate properly over the board, the silicon monster gives some insane variations. It is a great fun to discover them, do it yourself with or without computer!
46.♔e2 seems to be the only move that is a draw.
Amazingly, 51...♔c3! or ♔b3! wins for black, because after 52. ♖c8 (with a possible check) it doesn't matter how the white ♖ gets on b8, the black ♖ can defend the pawn from h5. The played 51...♖a2 is thus a draw, after 52.♖c8+ ♔b3 53.♖b8 ♖c2+ 54.♔d1 ♖c5 there is no ♙d2+.
It seems 55.♖a8 = is the only move that makes a draw instead of 55. ♔d2. White must impose constant problems by alternating the rook on the a-b-c files, sometimes giving a check on the c-file. For example 55.♖a8 ♔b2 56.♔d2 ♖d5 57.♖a5 ♔b3 58.a4 bxa4 59.♖xd5 a3 60.♔c1 ♔c4 is a theoretical draw, and there are much more lines that are unwinnable for either side.
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