3 problem(s) found in 1300 milliseconds (displaying 3 problem(s)). [COMMENTDATE>=20200919 AND K='Hilfsrückzüger' AND K='Rochadematt'] [download as LaTeX]
1 - P1377353
Isaak S. Birbrager
25 Fascinating Chess [Birbrager] , p. 36, 1961
(6+1) cooked
Take back a move and then #1
Isaak S. Birbrager
25 Fascinating Chess [Birbrager] , p. 36, 1961
(6+1) cooked
Take back a move and then #1
R: 1. 0-0, dann 1. 0-0-0#!
Cook: R: 1. Ta2-a1, dann 1. Td1#
R: 1. Tf2-f1, dann 1. Td1#
R: 1. Tc1-a1, dann 1. Tfd1#
Cook: R: 1. Ta2-a1, dann 1. Td1#
R: 1. Tf2-f1, dann 1. Td1#
R: 1. Tc1-a1, dann 1. Tfd1#
Keywords: Castling as mating move, Help retractor, Rex solus (s), Miniature, Aristocrat, Castling in the retro play
Genre: Retro
Computer test: C- Popeye for ser-#2 sufficient to demonstrate cooks for the actual stipulation
FEN: 8/8/3N4/3N3B/8/3k4/8/R4RK1
Input: James Malcom, 2020-06-28
Last update: Mario Richter, 2021-04-18 more...
Genre: Retro
Computer test: C- Popeye for ser-#2 sufficient to demonstrate cooks for the actual stipulation
FEN: 8/8/3N4/3N3B/8/3k4/8/R4RK1
Input: James Malcom, 2020-06-28
Last update: Mario Richter, 2021-04-18 more...
R: 1. c4xb3ep b2-b4, dann 1. Sc3+ Kc2 2. Dd3+ Kxd3 3. 0-0-0#?!
But castling is illegal! This is because Black's dark squared bishop is a promoted piece and White's king must have moved to let the promotion through.
http://matplus.net/start.php?px=1600656376&app=forum&act=posts&tid=2343&fid=xshows&page=1
But castling is illegal! This is because Black's dark squared bishop is a promoted piece and White's king must have moved to let the promotion through.
http://matplus.net/start.php?px=1600656376&app=forum&act=posts&tid=2343&fid=xshows&page=1
Henrik Juel: Removing wPh2 might help (2020-09-21)
James Malcom: The illegality of the castling is intentional. (2020-09-21)
A.Buchanan: I guess it is intended as a joke. There are numerous cooks e.g. R: 1. Dh1xDh5 Td6-b6 dann 1. Sb2-d2+! (2020-09-22)
James Malcom: Andrew, the White king is in check from the Black bishop. Ep is the only legal way to resolve it. Your suggestion is illegal. Did you forget to eat breakfast again? :) (2020-09-23)
A.Buchanan: Ha this is just like when I play chess otb - so hard to spot extraordinarily distant black pieces on dark squares :-) (2020-09-23)
James Malcom: Sounds fair enough to me! And the position is legal, not illegal, Andrew. (2020-09-23)
A.Buchanan: I meant "no solution" - and I've classified it as a joke which I think is the composer's intent (2020-09-24)
James Malcom: Quite simply, I agree. (2020-09-24)
Mario Richter: I think the "normal usage" of the keyword "no solution" in the PDB so far is to indicate, that the intended solution fails e.g. because of some hidden defense (which corresponds to the german "unlösbar").
This problem doen't fall into that category! In fact, it has as solution, namely that there is no mate in 3 after the (forced) retractions!
(There are 1064 cooked problems with the keyword "no solution", only 9 "no solution" problems with the label "C+", and for all of the latter either the "no solution" or the "C+" is wrongly attributed.
Perhaps the simplest way to handle the Pedrag-problem is to add "intended" to the KW "no solution". (2020-09-25)
James Malcom: I agree, Mario. It is now doe. (2020-09-25)
A.Buchanan: Yes that's fair. Most jokes follow a template, but this is quite original. (2020-09-25)
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James Malcom: The illegality of the castling is intentional. (2020-09-21)
A.Buchanan: I guess it is intended as a joke. There are numerous cooks e.g. R: 1. Dh1xDh5 Td6-b6 dann 1. Sb2-d2+! (2020-09-22)
James Malcom: Andrew, the White king is in check from the Black bishop. Ep is the only legal way to resolve it. Your suggestion is illegal. Did you forget to eat breakfast again? :) (2020-09-23)
A.Buchanan: Ha this is just like when I play chess otb - so hard to spot extraordinarily distant black pieces on dark squares :-) (2020-09-23)
James Malcom: Sounds fair enough to me! And the position is legal, not illegal, Andrew. (2020-09-23)
A.Buchanan: I meant "no solution" - and I've classified it as a joke which I think is the composer's intent (2020-09-24)
James Malcom: Quite simply, I agree. (2020-09-24)
Mario Richter: I think the "normal usage" of the keyword "no solution" in the PDB so far is to indicate, that the intended solution fails e.g. because of some hidden defense (which corresponds to the german "unlösbar").
This problem doen't fall into that category! In fact, it has as solution, namely that there is no mate in 3 after the (forced) retractions!
(There are 1064 cooked problems with the keyword "no solution", only 9 "no solution" problems with the label "C+", and for all of the latter either the "no solution" or the "C+" is wrongly attributed.
Perhaps the simplest way to handle the Pedrag-problem is to add "intended" to the KW "no solution". (2020-09-25)
James Malcom: I agree, Mario. It is now doe. (2020-09-25)
A.Buchanan: Yes that's fair. Most jokes follow a template, but this is quite original. (2020-09-25)
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Keywords: Belen Theme, Valladao Task, Help retractor, Castling as mating move, En passant in the retro play, Obvious promotion, Joke, no solution (Intentional), Cant Castler (wg)
Genre: Retro, 3#
FEN: 8/1pppp1p1/1R6/b6q/6N1/rp5Q/p5PP/RNk1K3
Input: James Malcom, 2020-09-21
Last update: Mario Richter, 2020-10-07 more...
Genre: Retro, 3#
FEN: 8/1pppp1p1/1R6/b6q/6N1/rp5Q/p5PP/RNk1K3
Input: James Malcom, 2020-09-21
Last update: Mario Richter, 2020-10-07 more...
3 - P1388716
Andrew Buchanan
PDB Website 18/04/2021
after Isaak S. Birbrager
(7+1)
-1w, dann #1
Bosma
Andrew Buchanan
PDB Website 18/04/2021
after Isaak S. Birbrager
(7+1)
-1w, dann #1
Bosma
See P1377353
Mario Richter: In what sense does "Bosma" help here? (e.g. why does it exclude Solutions like R: Tf4-f1, dann 1. De2#?) (2021-04-18)
A.Buchanan: 1. Tf4? 2. De2+? Kc4!
It would be nice to find a position with more Bosma tries than 4 (2021-04-18)
A.Buchanan: WinChloe finds zero solutions for ser-#2, which is promising. (2021-04-19)
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Mario Richter: In what sense does "Bosma" help here? (e.g. why does it exclude Solutions like R: Tf4-f1, dann 1. De2#?) (2021-04-18)
A.Buchanan: 1. Tf4? 2. De2+? Kc4!
It would be nice to find a position with more Bosma tries than 4 (2021-04-18)
A.Buchanan: WinChloe finds zero solutions for ser-#2, which is promising. (2021-04-19)
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Keywords: Help retractor, Aristocrat, Castling as mating move, Castling in the retro play, Bosma, Rex solus (s)
Genre: Retro, Fairies
FEN: 8/8/1N2Q3/7B/N7/3k4/8/R4RK1
Input: A.Buchanan, 2021-04-18
Last update: A.Buchanan, 2024-01-18 more...
Genre: Retro, Fairies
FEN: 8/8/1N2Q3/7B/N7/3k4/8/R4RK1
Input: A.Buchanan, 2021-04-18
Last update: A.Buchanan, 2024-01-18 more...
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The problems of this query have been registered by the following contributors:
James Malcom (2)A.Buchanan (1)
Originalforderung: Matt in Null Zügen (mit der Argumentation, daß (-1) Zug + (+1) Zug = 0 Züge ergibt.)
Autorschaft Birbragers zweifelhaft, da das Buch eher eine Sammlung von Problemen namhafter Autoren ist. Im Vorwort zur russischsprachigen Ausgabe heißt es: "В этой своей работе автор обратился к творчеству титанов шахматной мысли Росси М. Чигорина, А. Петрова, И. Шумова, советских шахматных композиторов А. Гуляева, В. Чеховера, А. Гербстмана, а также ряда зарубежных авторов."
Adrian Storisteanu: How about e.g., - 1.Rc1-a1 & 1.Rf1-d1# ?! (2021-04-18)
Henrik Juel: Yes, that is a bad cook (2021-04-18)
A.Buchanan: I wish that some solving engine could retract moves without regard for legality, to allow for Baird-style helpmate retractors to be tested after all these years. For this aristocrat with no units adjacent to bK, a reasonable approximation to the stipulation is: ser-#2. Of course it misses the uncastling, but it does derive:
1. Ta2 2. Td1#
1. Tf2 2. Td1#
1. Tac1 2. Tfd1#
I don't see any way to eliminate the third of these cooks in an orthodox problem. However Bosma can come to the rescue! I don't see a way to keep it as a miniature though. I will post it separately. (2021-04-18)
Mario Richter: Anmerkung zur Quelle: Es gibt kein Buch "Unterhaltsames Schach" bzw. "Fascinating Chess", der Titel sollte auch in der deutschen und englischen Version als Transkription (oder Transliteration?!) des Originaltitels angegeben werden!
Das hier um so mehr, als es tatsächlich eine englischsprachige Ausgabe dieses Buches mit dem Titel "Chess: Serious; for Fun" aus dem Jahre 1975 gibt (Verlag CHESS Ltd., Sutton Coldfield, England)
Zur Autorschaft: Daß Birbrager der Autor dieses und anderer Probleme aus dem Buch ist, ist eher unwahrscheinlich (s. Vorwort). (2021-04-18)
James Malcom: Mariom the book does exist: https://www.google.com/books/edition/%D0%97%D0%B0%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5_%D1%88%D0%B0%D1%85%D0%BC%D0%B0%D1%82/ZPbTxQEACAAJ?hl=en
I don't know why PDB will not accept ????????????? ???????" as the source, so I had to make do with a translation.
Furthermore, I only know of it thanks to a chess.com comment: https://www.chess.com/blog/Rocky64/what-if-a-pawn-could-promote-to-a-pawn#comment-49584342
I messaged them last June, and you can actually download the book for yourself (this link is safe): ftp://nozdr.ru/biblio/games/chess/1942-1991/%D0%91%D0%B8%D1%80%D0%B1%D1%80%D0%B0%D0%B3%D0%B5%D1%80%20%D0%98_%20%D0%97%D0%B0%D0%BD%D0%B8%D0%BC%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5%20%D1%88%D0%B0%D1%85%D0%BC%D0%B0%D1%82%D1%8B%20(1961).djvu
Lastly, despite the foreword, I interpret these 14 problems to be Birbrager's interpretations of other's ideas, making them his technically. (2021-04-19)
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