Statistics: Posted by garykevinware — 25 July 2014, 6:41 pm

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REFERENCE:

Zukertort v Andersen classical Spanish game on Chess games - http://www.chessgames.com/perl/chessgame?gid=1250625

Statistics: Posted by HammondPhil — 24 July 2014, 9:10 pm

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Main website: https://www.yamiechess.com

Teacher's Guide: https://www.yamiechess.com/teachers-guide

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Statistics: Posted by HammondPhil — 24 July 2014, 4:42 am

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What started with a Grunfeld, (Carlsen on White) and what ended so startlingly with Black Queen to g4.... I'm sure we all have analyzed this to death, but this blunder strikes me as one of the most exciting from an aesthetic pov; possibly Giri's Immortal. Would love to hear folk's views on this specific blunder? Beauty or just a bad day for Magnus?

Statistics: Posted by HammondPhil — 24 July 2014, 4:31 am

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1 Rf2 Ke4 2 Nc6 Kd3 3 Nb4+ Ke4 4 Kd6 Kd4 5 Rf4#

Galitzki #8-

The following is from Rosalie Fay:

The wR and wK have almost confined the bK to d5-e5-f5, so this looks like Bolton's mating-net turned sideways. For the moment, White must keep the wR on the c-file to stop the bK escaping via that file, and the wN is already on the correct square, defending the wR. This suggests that the wK or wP must move first. In fact the Nalimov tablebase gives White 4 keys that mate in 8! http://www.shredderchess.com/online-chess/online-databases/endgame-database.html

1 Kf4 Kd4 leads to another amazing wN journey -- amazing in that 6 moves are needed and there is a unique shortest 6-move path:

1 Kf4 Kd4 2 Nc8 Kd5 3 Ne7 Kd4 4 Ng6 Kd5 5 Ne5 Kd4 6 Nd3 Kd5 7 Nb4 Kd4 8 c3#

Moving the wP first can indeed lead to #8, and 1 c3 Ke5 means Black never gives White any choice after the key-move. So there is this cook:

1 c3 Ke5 2 Nb5 Kf5 3 Nd4 Kg4 4 Rc5 Kg3 5 Ne2+ Kg4 6 Kf2

6 ... Kh4 7 Kf3 Kh3 8 Rh5#

6 ... Kh3 7 Rc4 Kh2 8 Rh4#

(5 ... Kg2 6 Rh5 Kf1 7 Rg5 Ke1 8 Rg1#

or 7 Rh2 Ke1 8 Rh1#

5 ... Kh3 6 Kf3 Kh4 7 almost anything Kh3 8 Rh5)

And there are more cooks:

1 c4 Ke5 2 Rh6/Nc8

1 Rh6

1 ... Kc4 2 Rh5/Nc6

1 ... Kc5 2 Kd3/Ke4

1 ... Ke5 2 c4/Nc6

Can this problem be mended so that 1 Kf4 is the unique key?

Galitzky's problem is on PDB at P1149171. Henrik Juel and Rainer Staudte commented on this PDB entry as follows:

Henrik Juel: According to Popeye, cooked by 1 Rh6.

Removing the first whole move (yielding Kf4/Kd4, #7), which is non-thematical, fixes the problem. (2011-7-27)

Rainer Staudte: Zuncke's collection contains exactly this corrected version with a reference to Gerhard Kaiser's collection. (2011-7-29)

The 1 Kf4 solution doesn't need the h-file. I propose an alternative fix:

Add bPh7.

Galitsky (version by Rosalie Fay) #9

(I looked on PDB for moremovers with KRNPkp and didn't find this one...)

Now 1 Kf4 is White's unique best move, and it is a sound #9. As far as Black's 3rd, the solution line is as before, but White's 4th is different:

With Black's extra pawn, we lose the sense of Black having nothing better to do than oscillate the bK. So there seems to be no point in White losing a tempo in order to wrong-foot the bK, because Black can push the pawn instead. But White must still take care, and depending on how Black defends, White might still need to lose a tempo. This is because the wK needs to go to g5, and White needs to ensure that the bP isn't on h6 then.

1 Kf4 Kd4 2 Nc8 Kd5 3 Ne7 Kd4 4 Rc8 h~ 5 Rc7 h~ 6 Nf5 Kd5 7 c4+ Ke6 8 Kg5 h~/Ke5 9 Re7#

The old 3 Ne7 is now square-vacation for the new 4 Rc8.

4 Rc7? still wins, but takes a move longer:

4 Rc7? h6! 5 Rc6/Rc8 (forcing Black to unguard g5) h5 6 Rc7 h4 7 Nf5 etc.

Statistics: Posted by garykevinware — 17 July 2014, 12:00 am

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Horatio Bolton Chess Player's Chronicle July 31st, 1841 #7

1 Rc7 Kd5 2 Rc6 Kd4 3 Nf7 Kd5 4 Ne5 Kd4 5 Nd3 Kd5 6 Nb4+ Kd4 7 c3#

As several readers have pointed out, there is a cook by 1 Nf7 Kd5 2 Rc7 Ke6 3 c4 Kf6 4 Ng5 (or Nd8) Kg6 5 Rf7 Kh6 6 Kf5 Kh5 7 Rh7#, or 5...Kh5 6 Rf6 Kh4 7 Rh6#.

If 1 Rc6?, 1...Kd5 2 c2-c3?? is a stalemate! A corrected version by Juri Sereschkin (Ideal-Mate Review, April 1990):

#7

A tempo losing maneuver : "In a critical position, the one on the move has the disadvantage. Prior to achieving that position, White makes his maneuver one move slower or loses a move in some other way. A very popular theme in studies and more-movers" (Kari Valtonen and Milan Velimirovic).

I forwarded that e-mail to Rosalie Fay, and she sent me the following response:

I looked at the #7 that Guy had forwarded to you (Seryoshkin, based on Bolton). White mates in 7 by

1 Rb7 Kc5 2 Rb6 Kc4 3 Nc7 Kc5 4 Nd5 Kc4 5 Nc3 Kc5 6 Na4 Kc4 7 b3#

I like that problem! Amazing that there is only 1 safe 4-move route for the wN from a8 to a4.

I see the point. White's 1st & 2nd move do in 2 moves what a wR can do in 1. So white loses a tempo.

WTM wins in 7. BTM loses in 6 by 1...Kc5 2 Rb6. So the set play is the same as the mainline without White's first move. White just needed a waiting move in the diagram position. So that position is a complete block. OK, so in the diagram position White has a disadvantage -- but only by 1 move, so it's not much of a disadvantage. But, yes, a tempo-losing maneuver. It's not even a squeeze as John Beasley would define the term -- to him, White is in a squeeze if White needs 3 or more moves to mate WTM than BTM.

Now here's a zugzwang.

Zairab Katai, published between 813 and 833, according to http://en.wikipedia.org/wiki/Zugzwang

1 Re3! Ng1 2 Kf5 Kd4 3 Kf4!

wR dominates bN. wK defends wR and the White pieces have separated the Black pieces. Now, Black is in zugzwang: BTM loses (Black's best moves are the king-moves, which lose in 17); WTM draws.

I forwarded that e-mail to Guy, and he wrote back:

I just want to add that in Bolton's chess problem (if black to play) : after -1...Kd4-d5 1 Rc8-c6! 1....Kd5-d4 2 Nd8-f7! 2...Kd4-d5 3 Nf7-e5! 3...Kd5-d4 4 Ne5-d3 4...Kd4-d5

5 Nd3-b4+ 5...Kd5-d4 and 6 c2-c3 checkmate. That's why if 1 Rc8-c6?? 1...Kd4-d5 and 2 c2-c3 leads to a stalemate!

Eugene ALBERT (born 9 January 1930) has discovered in this seven-mover of Horatio BOLTON that after the key 1 Rc8-c7! (if white to play) 2 Nd8-e6+ 2...Kd4-d5

3 Kf4-f5! 3...Kd5-d6 4 c2-c3! 4...Kd6-d5 5 Ne6-d4! 5...Kd5-d6 6 Nd4-b5+ 6...Kd6-d5 and 7 c3-c4 ideal mate with echoed-chameleon mate! (See US Bulletin 3-4, 1965).

Herbert GRASEMANN (Graudenz 21 Dezember 1917-Berlin 21 June 1983) has reproduced this famous problem in his book (published under his pseudonym Arne MANGS) entitled : "The Art to checkmate :The 250 most interesting chess problems since two centuries". (Die Kunst des Mattsetzens : 250 der interessantesten Schachaufgaben aus zwei Jahrhunderten).

Then, Guy sent me a subsequent e-mail, which had two problems, which I present for you to solve this week:

Wolfgang Pauly (1876-1934) La Croix de Genève December 1925 (reproduced also in 1962 in De Schaakspeler (the chess player for Dutch translation)

#5

Alexander Wassiljewitsch Galitzki (1863-1921) Magyar Sakkvilag 1912 (after BOLTON)

#8

13 points for sending me a complete variation to both problems, at garykevinware@yahoo.com , by next Wednesday.

Statistics: Posted by garykevinware — 9 July 2014, 10:01 pm

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1 Bf6 gxf6 2 Kf8 f5 3 Nf7#

Rosalie Fay didn't think that the problem was a very good example of zugzwang. "I think we (or Tim Brennan and I) must just have different ideas of what "zugzwang" means. Hooper & Whyld define it as "a position in which each player would obtain a worse result if it were his turn to move than if it were not". Here, after 1 Bf6, Black loses in 2, but if it were White's turn again, White would win in 2. Same result, and White doesn't win any sooner if it's Black's move. Now /here/'s a #3 with this material showing zugzwang.

Rosalie Fay

Original

#3

"1 Bh6 Now this is a zugzwang. Black to move loses in 2: 1...Kxh8 2 Kf7 e~ 3 Bg7# But -- and this is what makes it zugzwang -- if it were White to move again, White can't force a win. 2 Nf7 is stalemate. 2 Ng6 hxg6 and White no longer has mating force and has no smothered mate either. 2 Bg7 Kxg7! 3 Nf7 h5 4 Kxe7 h4 5 Ng5 h3 6 Nxh3 draws. And White has nothing better. It's worse for White if it's White's turn (draw) than if it isn't (win). That isn't a published problem. I took an entry from John Beasley's list of zugzwangs at http://www.k4it.de/egtb/zugzwang.php, then composed a key-move for White."

I wrote back, "It is true, that in The Oxford Companion To Chess by David Hooper and Kenneth Whyld, it says that, "zugzwang is a position in which each player would obtain a worse result if it were his turn to move than if it were not." However, by their own admission, they have their own definitions, calling positions in which only one player would be at a disadvantage on account of having the move, a squeeze instead of zugzwang, and those in which if both players would be at a disadvantage if obliged to move, zugzwang, instead of reciprocal zugzwang."

She also included a link to a brief biography of Galitzky, with another of his problems: http://www.chessnc.com/biography/person-1376.html.

Again, I appeal for reader input, if you want to keep Gary's Gems alive. You can send your suggestions to me at garykevinware@yahoo.com .

Statistics: Posted by garykevinware — 3 July 2014, 12:17 am

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Barry Keith (M11) 71

Daniel Maxwell (E9) 320

Renato Casalino (E7) 127

Guy Meissonnier 313

Tom Eilers 298

John Marshall 219

Rosalie Fay 12

Statistics: Posted by garykevinware — 2 July 2014, 11:52 pm

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Awards will be published on the website http://superproblem.ru

View the announcement on the link http://superproblem.ucoz.ru/blog/2014-07-01-55#02

Statistics: Posted by alexeioganesyan — 1 July 2014, 8:17 am

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