# Joke Puzzle

I occasionally criticize puzzles because they do not adhere to standard chess rules and conventions. That does not imply that I reject those types of puzzles, only that I think you should tell the solvers when you confront them with a non-standard puzzle. So here is one that I announce as a joke puzzle.

Joke puzzles have no fixed pattern and solving them requires both creative thinking and a bit of luck. It helps when you can read the authors mind such that you can telepathically synchronize with it

I will give you one clue by disclosing that a good puzzle only has 1 solution! The rule is here that you must find that solution on your first attempt; once you see the red flash light, you failed!

Explanation in white text [highlight to read]:

[ If you did your home work well you will have figured out that there are potentially 3 solutions. The one given in the puzzle solution, one by castling and one by playing the en passant move. The only one that is always correct under the basic chess laws is the one given in the solution starting with 1. Ra7. The other two depend on the agreements we made to decide things you can't see in the diagram because they depend on the past. And that is where the joke starts. In this puzzle I assumed that white has no right to castle and no right to play en passant which is quite possible in a game where the diagram occurs. How can you know that neither move is permitted? Well, I told you a puzzle can only have 1 solution and since 1.Ra7 is beyond discussion only the 2 solutions with uncertain histories can be sacrificed! And that is how you know what the correct solution is!

There is another point about the puzzle that is unusual. I ticked the checkboxes to allow you to play the castling and the e.p. move even though they are illegal. That is of course to keep you from finding out by trying that you can't play these moves. You must solve the puzzle by reasoning + calculation and if you  try e.p. or 0-0-0 you have already failed, so I gave you the red failure flash. In a better puzzle interface than chess.com's I could have presented this more elegantly! ]

jiji!! no miro mas...enroque largo

ChessReina wrote:

jiji!! no miro mas...enroque largo

Ahhh!! jijiji!!! ya sé...Kf1

f1

Kf1? Rb3!

Very nice puzzle! Took me an hour. But I saw the "solution" before I saw [O-O-O] or [   gxf6  ], so perhaps I got a little lucky

Congratscminton3 wrote:

Very nice puzzle! Took me an hour. But I saw the "solution" before I saw [O-O-O] or [   gxf6  ], so perhaps I got a little lucky

Congrats! As I said, luck is part of the joke game; it's not an exact science

Ahora si! la tercera es la vencida,juego 1.Ra7 , no hay refutasion!!!

ChessReina wrote:

Ahora si! la tercera es la vencida,juego 1.Ra7 , no hay refutasion!!!

Great! That's it! No refutasion!

Good one! First I saw that Black is almost in zugzwang, except for 1...Rb3!, but 1.b4? fails to 1...cxb4! Castling seems to work, and so does e.p. capture if legal, as each generates a threat. Since this is a joke problem, my wild guess was that you reversed the conventions for them and made only e.p. legal. Then I noticed 1.Ra7 works too, which confused me (by then I'd forgotten your clue about one solution only). That's when I gave up and tried the three moves at random!

Muy lindo todo!! Good Luck All

Arisktotle wrote:

I occasionally criticize puzzles because they do not adhere to standard chess rules and conventions. That does not imply that I reject those types of puzzles, only that I think you should tell the solvers when you confront them with a non-standard puzzle. So here is one that I announce as a joke puzzle.

Joke puzzles have no fixed pattern and solving them requires both creative thinking and a bit of luck. It helps when you can read the authors mind such that you can telepathically synchronize with it

I will give you one clue by disclosing that a good puzzle only has 1 solution! The rule is that you must solve the puzzle on your first attempt; once you see the red flash light, you failed!

Explanation in white text:

[ If you did your home work well you will have figured out that there are potentially 3 solutions. The one given in the puzzle solution, one by castling and one by playing the en passant move. The only one that is always correct under the basic chess laws is the one given in the solution starting with 1. Ra7. The other two depend on the agreements we made to decide things you can't see in the diagram because they depend on the past. And that is where the joke starts. In this puzzle I assumed that white has no right to castle and no right to play en passant which is quite possible in a game where the diagram occurs. How can you know that neither move is permitted? Well, I told you a puzzle can only have 1 solution and since 1.Ra7 is beyond discussion only the 2 solutions with uncertain histories can be sacrificed! And that is how you know what the correct solution is!

There is another point about the puzzle that is unusual. I ticked the checkboxes to allow you to play the castling and the e.p. move even though they are illegal. That is of course to keep you from finding out by trying that you can't play these moves. You must solve the puzzle by reasoning + calculation and if you  try e.p. or 0-0-0 you have already failed, so I gave you the red failure flash. In a better puzzle interface than chess.com's I could have presented this more elegantly! ]

This is the white text:

Yo no lo pude leer al texto blanco, esta compu no anda bien desde hace bastante y aun no trabaja mi tecnico para que me la arregle, creo que recien cuando se flexsivice el covid-19 podre llevarla para yn servis.

Arisktotle wrote:

I occasionally criticize puzzles because they do not adhere to standard chess rules and conventions. That does not imply that I reject those types of puzzles, only that I think you should tell the solvers when you confront them with a non-standard puzzle. So here is one that I announce as a joke puzzle.

Joke puzzles have no fixed pattern and solving them requires both creative thinking and a bit of luck. It helps when you can read the authors mind such that you can telepathically synchronize with it

I will give you one clue by disclosing that a good puzzle only has 1 solution! The rule is that you must solve the puzzle on your first attempt; once you see the red flash light, you failed!

Explanation in white text:

[ If you did your home work well you will have figured out that there are potentially 3 solutions. The one given in the puzzle solution, one by castling and one by playing the en passant move. The only one that is always correct under the basic chess laws is the one given in the solution starting with 1. Ra7. The other two depend on the agreements we made to decide things you can't see in the diagram because they depend on the past. And that is where the joke starts. In this puzzle I assumed that white has no right to castle and no right to play en passant which is quite possible in a game where the diagram occurs. How can you know that neither move is permitted? Well, I told you a puzzle can only have 1 solution and since 1.Ra7 is beyond discussion only the 2 solutions with uncertain histories can be sacrificed! And that is how you know what the correct solution is!

There is another point about the puzzle that is unusual. I ticked the checkboxes to allow you to play the castling and the e.p. move even though they are illegal. That is of course to keep you from finding out by trying that you can't play these moves. You must solve the puzzle by reasoning + calculation and if you  try e.p. or 0-0-0 you have already failed, so I gave you the red failure flash. In a better puzzle interface than chess.com's I could have presented this more elegantly! ]

Hurray good joke

Rocky64 wrote:

..... Since this is a joke problem, my wild guess was that you reversed the conventions for them and made only e.p. legal ........

Excellent mind reading! That is how I would have presented this puzzle a week ago. Then I bumped into a puzzle with an unannounced e.p. move and I decided to wrongfoot anyone involved in that discussion. The unannounced e.p. move repeats so often on this forum that has become a boring aspect of its daily life!

ChessReina wrote:

Yo no lo pude leer al texto blanco, esta compu no anda bien desde hace bastante y aun no trabaja mi tecnico para que me la arregle, creo que recien cuando se flexsivice el covid-19 podre llevarla para yn servis.

You must "highlight" the text to read it - just as you would do when you copy/paste it to another place.

OK Dear ChessFriend Arisktotle !!! Many Thanks

Arisktotle wrote:

I occasionally criticize puzzles because they do not adhere to standard chess rules and conventions. That does not imply that I reject those types of puzzles, only that I think you should tell the solvers when you confront them with a non-standard puzzle. So here is one that I announce as a joke puzzle.

Joke puzzles have no fixed pattern and solving them requires both creative thinking and a bit of luck. It helps when you can read the authors mind such that you can telepathically synchronize with it

I will give you one clue by disclosing that a good puzzle only has 1 solution! The rule is that you must solve the puzzle on your first attempt; once you see the red flash light, you failed!

Explanation in white text (highlight to read):

[ If you did your home work well you will have figured out that there are potentially 3 solutions. The one given in the puzzle solution, one by castling and one by playing the en passant move. The only one that is always correct under the basic chess laws is the one given in the solution starting with 1. Ra7. The other two depend on the agreements we made to decide things you can't see in the diagram because they depend on the past. And that is where the joke starts. In this puzzle I assumed that white has no right to castle and no right to play en passant which is quite possible in a game where the diagram occurs. How can you know that neither move is permitted? Well, I told you a puzzle can only have 1 solution and since 1.Ra7 is beyond discussion only the 2 solutions with uncertain histories can be sacrificed! And that is how you know what the correct solution is!

There is another point about the puzzle that is unusual. I ticked the checkboxes to allow you to play the castling and the e.p. move even though they are illegal. That is of course to keep you from finding out by trying that you can't play these moves. You must solve the puzzle by reasoning + calculation and if you  try e.p. or 0-0-0 you have already failed, so I gave you the red failure flash. In a better puzzle interface than chess.com's I could have presented this more elegantly! ]

Excellent standard formalism. Top marks.

MetaphysicalWukong wrote:

Excellent standard formalism. Top marks.

Thnx!

I have this weird intuition that you are in a superposition ensemble with the currently submerged state of Weyltransform and some others I noticed flashing by. Any chance that my assumptions correspond to a fair image of reality?