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  Play ... Latest Forum Posts > Chess Forums > Chess - General discussion
  Alternative Chess Puzzles




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mjgayle52

Chess rating: 1782
LCF 1668




 Topics started


United States
Give chess goodie
Sat Apr 9 2016 12:16AM | MsgID: 18958000


"Each square on a chessboard is unique" is most valid when there are pieces constrained to forward movement (pawns). There are no pawns in this position therefore a mate in one corner(for instance) has exact equivalents in the other 3 corners...etc.







ockendon

Chess rating: 1707
LCF 109 Fide approx. 1795






 Topics started


England
Give chess goodie
Fri Apr 8 2016 10:51PM | edited: 10:52:05 | MsgID: 18957887


Ah, you saw through my attempted deception, that the challenger is not necessarily losing against the GM in this position!

I don't think rotations count, for each square on a chessboard is unique in its own right.

With a quick calculation, I can find 214 possible versions of a K+Q v K checkmate. Adding to these the possibilities of black timing out (1), black resigning (1) or black tipping up the board in frustration (1) gives 217 possible ways of the challenger winning. And if the challenger is black rather than white, these last 3 will apply again; so, there are 220 ways in which the challenger can win.

There is also the possibility of an incorrect adjudication, either accidental or deliberate; but I've discounted these as being outside the rules of the game.







mjgayle52

Chess rating: 1782
LCF 1668




 Topics started


United States
Give chess goodie
Fri Apr 8 2016 5:09AM | edited: 6:47:44 | MsgID: 18956284


"ways" to win (ignoring draws for now) - it is easy enough to checkmate black on any outside square (of which there are 28). but counting rotations and reflections there may only be 4 unique outside squares. there is also more than one kind of mate. kind of a classification problem.







Earl of Norfolk

Chess rating: 2482





 Topics started


United States
Give chess goodie
Chess goodies: 59
Thu Apr 7 2016 6:00PM | MsgID: 18955298


I was on a first date with a single mother and her 7-yr old daughter came with us. We were at a restaurant that had a jukebox and the song Tonight's the Night was on it. It was credited to Rod Stewart but at the time I didn't know his version. He had covered some oldies in the past (e.g. Sam Cooke's Twisting the Night Away), so I assumed this was a cover of an old Shirelles song that had the same title. I played the record, and as we listened to the lyrics I got more and more embarrassed, as did my date as she was trying to keep her daughter from listening to it by talking very loudly. When the song finally ended, she burst out laughing while I was turning various shades of crimson. I think of this whenever I hear the song. :))







ockendon

Chess rating: 1707
LCF 109 Fide approx. 1795






 Topics started


England
Give chess goodie
Tue Apr 5 2016 11:00PM | edited: 12:26:25 | MsgID: 18951775


Nice win, Mr. Norfolk! And thanks for the puzzle, Tao.

Now, here's another Alternative Chess Puzzle:

You're lucky enough to be taking part in an exhibition simul against a GM. Although things have not been going well. Here is the current position:








Analyse position



You've already made your move. The GM is approaching, and will be at your board in just a couple of minutes.

Now ... this Alternative Chess Puzzle is not can you win, or can you draw; but what are the possible ways that you could win, or that you could draw?

Outside help, e.g. using a chess engine, or phoning another GM, is not permitted. And neither are threats or violence of any kind.








Taotaomonas

Chess rating: 1544





 Topics started


Australia
Give chess goodie
Tue Apr 5 2016 9:23PM | edited: 9:29:02 | MsgID: 18951541


Reason I stayed on this site. More Importantly why my love of chess and its beauty kept me playing, improving.... Sane in the pursuit that I could one day at least be 'Better'! ... Was simple

The Earl of Norfolk. Dan ... Salutes Sir!

If you don't object Old Lord of both 'The Darkside' and the Wlight.
That Retiarius only two edits fellow is not following your annotation. Any chance of a little inside help?







Taotaomonas

Chess rating: 1544





 Topics started


Australia
Give chess goodie
Tue Apr 5 2016 9:00PM | MsgID: 18951479


Originally posted by: "Earl of Norfolk"
Tonight's the night.




You always were far far cleverer than most old chap







Taotaomonas

Chess rating: 1544





 Topics started


Australia
Give chess goodie
Tue Apr 5 2016 8:58PM | MsgID: 18951473


Originally posted by: "ockendon"
"A wild horse runs free forever" ?




GOOD try Ockers. But more Patti Smith in my book. Current winner if admin are allowed







Earl of Norfolk

Chess rating: 2482





 Topics started


United States
Give chess goodie
Chess goodies: 59
Tue Apr 5 2016 8:57PM | MsgID: 18951472


Tonight's the night.







ockendon

Chess rating: 1707
LCF 109 Fide approx. 1795






 Topics started


England
Give chess goodie
Tue Apr 5 2016 8:43PM | MsgID: 18951433


"A wild horse runs free forever" ?







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