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| | Page: [Previous] [Next] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | | (421) Posted by Michel Caillaud [Tuesday, Aug 2, 2022 01:38] |
On another forum, (396) was used for a discussion about testing long problems, and Paul Raican pointed that it was a ser-h= with colors reversed.
I was confused. When chasing records, a composer can forget elementary principles...
Indeed, in a "true" ser-r, there should be at least one try failing because the side to move has reflex obligation to mate or stalemate. Otherwise, the problem is a ser-h with colors reversed in disguise.
(348),(273) and (396) belong to this category.
As a result, (273) can probably be computer-tested as a ser-h= with Popeye and option Intelligent (and some time...).
It happens that a new ser-r# record can be done using reflex tries :
dedicated to Paul Raican
 (= 4+16 )
ser-r#13 C+
1.h4! (1.g6? 2.é×f7‡,g×f7‡) 2.h5 3.h6 4.h×g7 5.g×f8=B 6.g6 7.g×h7 8.h×g8=R! (8.h×g8=Q? 9.é×f7‡,Q×f7‡) 9.Rg2 10.B×é7 11.Bh4 12.Kh2 13.Kh3 Q×h4‡
but it is highly improbable, not to say certainly impossible, that the same can be done for a ser-r=...
| | | (422) Posted by Arno Tungler [Wednesday, Aug 3, 2022 02:08] |
@ “Indeed, in a "true" ser-r, there should be at least one try failing because the side to move has reflex obligation to mate or stalemate. Otherwise, the problem is a ser-h with colors reversed in disguise.”
Please see my earlier post (165) with a few comments from others thereafter.
On the ser-r= see also post (378)!
Congratulations on the “real” Ser-r# above! Now we have a good start to get the longest…
| | | (423) Posted by Michel Caillaud [Wednesday, Aug 3, 2022 22:43] |
Arno, I am afraid that with sooo many posts, I didn't read these ones and concentrated on the ones with records and cooks...
Indeed, you anticipated me (and Paul) on the diagnosis. But sorry there will be no change of dedication A Posteriori.
I knew this beforehand, same as for selfmates that are direct stalemates in disguise, etc. etc.. But somehow I got trapped, and felt guilty...
The defences are lower in the field of records.
Quality is not the priority when you accept Kings in check, adding ugly moves to nice sequences, etc... If a ser-r has no reflex try but more moves, it will be considered the record.
| | | (424) Posted by Arno Tungler [Thursday, Aug 4, 2022 08:36] |
Yes, these standards are often ignored - seems this is not a problem as naturally you want always to find also the “real” length record, even if it is not so nice. For series-reflex stipulations the usual view is that records count only if they have at least one reflex-refutation.
| | | (425) Posted by Frank Richter [Sunday, Jan 8, 2023 11:22] |
One remark to F3745 in The Problemist, July 2022 - this ser-s#16 is by Michael Schreckenbach & Frank Richter.
Unfortunately, the co-author was ignored both when the problem was printed and now in the solution, although I pointed this out several times.
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