|
| Page: [Previous] [Next] 1 2 |
| (21) Posted by Joose Norri [Wednesday, Jul 10, 2019 09:52]; edited by Joose Norri [19-07-10] |
Krabbé's article De Rups is in Schaakbulletin 183, februari 1983, with 19 examples. Let me see if I manage to operate the scanner.
|
|
| (22) Posted by Jan Hein Verduin [Wednesday, Jul 10, 2019 19:39] |
I knew it!
|
|
| (23) Posted by Joose Norri [Thursday, Jul 11, 2019 21:30] |
Krabbé does not have a mutual Rups, but there is Korolkov's yacpdb 275818.
|
|
| (24) Posted by James Malcom [Friday, Jul 12, 2019 01:59] |
Even if Krabbe has no mutual caterpillars, it would still be nice to see that article.
And thanks for that double caterpillar pro life by Korolkov Joosr! I was looking for such a problem as well!
A long caterpillar problem that I know is a n#24 made by John Nunn that features 9 consecutive corner-to-corner moves. It can found in Morse's book
|
|
| (25) Posted by Michael McDowell [Friday, Jul 12, 2019 09:56] |
Doesn’t that Nunn problem show 18 consecutive corner-to-corner moves? Mark Kirtley and myself have composed selfmates showing 27 consecutive corner-to-corner moves (by bishop and queen respectively).
What about this one?
Ronald Turnbull
Special Prize CCC Challenge 1991
 (= 11+12 )
Draw
1.c7+ Kxc8 2.Bh1 then White plays Ba8/h1 while Black moves his rooks, avoiding repetition, and moving a pawn every 50th move until 452.Bh1 R~ drawing by the 50-move rule. The introductory play is significant in that Black's first move being a capture starts the count for the 50 move rule.
|
|
| (26) Posted by Olaf Jenkner [Friday, Jul 12, 2019 15:19] |
The above mentioned problem is here:
http://pdb.dieschwalbe.de/search.jsp?expression=probid=%27P1341253%27
|
|
| (27) Posted by James Malcom [Friday, Jul 12, 2019 16:41] |
Thanks for those problems! And here is a link to that Nunn problem that I mentioned in yacpdb: https://www.yacpdb.org/#3
Here the diagram for your convenience. And yes, the solution does contain 18 consecutive corner-to-corner moves with a White light-sqaures me bishop.
John Nunn, 1991, n#24
 (= 6+10 )
|
|
| (28) Posted by Bojan Basic [Saturday, Jul 13, 2019 18:07] |
Let me share the following (fairy) problem showing "rook-caterpillar".
Bojan Bašić
2nd Prize, Springaren Winter Tourney 2014-15
 (= 12+8 )
s#7
Circe Parrain
1+0 Ubi-Ubi
Solution: 1.Re7*e8 + Ka7-a6 [+bSe7] 2.Re6*e7 + Ka6-a5 [+bSe6] 3.Re5*e6 + Ka5-a4 [+bSe5] 4.Re4*e5 + Ka4-a3 [+bSe4] 5.Re3*e4 + Ka3-a2 [+bSe3] + 6.Re2*e3 + Ka2-a1 [+bSe2] 7.Sd1*b2 Ka1-a2 [+bBb3] #
|
|
| (29) Posted by Joose Norri [Tuesday, Jul 16, 2019 20:23] |
Many of the problems along the Bláthy (e.g. P1188172) - Speckmann - Miljanic (P1251710) line include caterpillars, but surely it makes sense to differentiate between these forced marches and problems where they serve some positive purpose.
|
|
| (30) Posted by Hauke Reddmann [Tuesday, Jul 16, 2019 23:17] |
Ah, but if Whites march wouldn't be forced, the problem would be cooked,
if Blacks march wouldn't be forced, the problem would be unsolvable :-)
Is "forced only by zugzwang" what you mean?
P.S. Just remembered my problem from the Uelzen SCHWALBE congress:
 (= 2+6 )
#6
I think this is "forced" by your definition?!
|
|
| (31) Posted by Joose Norri [Wednesday, Jul 17, 2019 01:35] |
Yes of course in a correct problem all moves are forced… so yes, forced by zugzwang, although I think there are a couple of problems where Black delays the mate as much as possible by moving the caterpillar, and not a non-caterpillar pawn.
|
|
| (32) Posted by Marjan Kovačević [Wednesday, Jul 17, 2019 23:35] |
Hauke, what is exact source of your #6?
|
|
| (33) Posted by Hauke Reddmann [Thursday, Jul 18, 2019 12:17]; edited by Hauke Reddmann [19-07-18] |
@Marjan: a bit complicated. 1995 was the yearly conference of the SCHWALBE
in Uelzen. Together with the local chess club, they brought out a special issue
of the club zine, the (Schach)Kiebitz (very clever, both are birds - and
a Kiebitz is a spectator at chess), and a few problems were made
especially for the occasion. So "H. Reddmann, Schach-Kiebitz, 1995".
EDIT: Should add what Northern Germans call a "Döntsche", just for teh lulz.
I sent in three problems, all somewhat symbol-looking, a German triangle stop sign,
an arrow, and this one, and accompanied them with the quip: "Attention,
there lies Uelzen!" The club introducer to the problems topped it by stating
the "U" looks rather distorted, surely due to the many traffic-related construction
sites in the Uelzen inner city :-)
Hauke
|
|
| (34) Posted by Marjan Kovačević [Sunday, Jul 21, 2019 22:12] |
Thanks, Hauke! I have reproduced it in the daily Politika.
|
|
| (35) Posted by James Malcom [Monday, Aug 26, 2019 13:49]; edited by James Malcom [19-08-26] |
Interestingly, the 27 corner-to-corner moves for the Queen, and the 28 for the Bishop, seem to he selfmate records where the piece in question makes consecutive moves between two different squares, aka a pendulum.
I wonder, what are the records for the Rook, Knight, and King?
I managed to make some long ones on my own.
Rook:
WTM,s#23
 (= 5+12 )
Knight:
WTM, s#25
 (= 5+11 )
King:WTM, s#23
 (= 3+12 )
And just for a complete list:
Queen:
Michael McDowell
S2669 The Problemist 26-5, p. 190, 09/2017
P1341253, WTM, s#27
 (= 6+12 )
Bishop:
Selfmate in 28
Mark Kirtley
The Problemist, 1994
Found In Tim Krabbe's Diary, #106: https://timkr.home.xs4all.nl/chess2/diary_6.htm
WTM, s#28
 (= 7+11 )
|
|
| (36) Posted by James Malcom [Thursday, Oct 10, 2019 21:25]; edited by James Malcom [19-10-10] |
I found a new high number for the rook pendulum, afaik, that is more than my s#23 from above.
WTM, s#26
 (= 5+12 )
And a slighy improved king’s pendulum.
s#24
 (= 3+12 )
Records for directmate pendulums can be found here: http://superproblem.ru/htm/composition/articles/stat64.html
|
|
No more posts |
Page: [Previous] [Next] 1 2
MatPlus.Net  Forum General Looking for mutual caterpillar problema |
ISC 2024
