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(61) Posted by Jacques Rotenberg [Tuesday, Dec 1, 2020 18:13] |
F]
Robert G. Thompson
The Problemist Fairy Chess Supplement 1932
(= 11+4 ) 2#
1.Sd4! block
1…K×f6 2.Qe7‡
1…Kh4 2.S×f3‡
1…Kh6 2.Qd2‡
1…Kf4,K×g4 2.Se6‡
K4(5)
@Hauke
I could get a R3(14) with no promotion, but only in 12 pieces |
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(62) Posted by Frank Richter [Tuesday, Dec 1, 2020 19:41] |
Isn't it K5(4)?
5 moves, 4 different mates? |
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(63) Posted by Jacques Rotenberg [Tuesday, Dec 1, 2020 20:43] |
yes, you can write it as you want
I began with the number of mates but you can begin by number of moves given to the black thematic piece |
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(64) Posted by Hauke Reddmann [Tuesday, Dec 1, 2020 21:43] |
@Jacques: I assume you have the same position :-)
(= 10+2 )
And thanks for the find. (Not in the Albrecht) I already
suspected the fifth mate would fit into the matrix. |
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(65) Posted by Hauke Reddmann [Tuesday, Dec 1, 2020 21:57] |
R 14(4), but again with the (felt) dual:
(= 9+2 )
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(66) Posted by Hauke Reddmann [Tuesday, Dec 1, 2020 22:22] |
Obligatory promotion orgy R14(5), but with a tiny dual on
...Rh2 and I can't get the %&$ out:
(= 11+3 )
(EDIT: Best I can get w/o promo or dual is R13(5):
(= 9+2 )
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(67) Posted by Jacques Rotenberg [Wednesday, Dec 2, 2020 12:46] |
1...Rd7 dual |
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(68) Posted by Hauke Reddmann [Wednesday, Dec 2, 2020 14:56] |
Oh, right, the rook may not end up higher than the bishop... :-/
OK, next try to increase variants goes to you :-) |
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(69) Posted by James Malcom [Wednesday, Dec 2, 2020 19:56] |
Wonderful work, you all!
Oohh, #69. (-: |
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(70) Posted by Hauke Reddmann [Thursday, Dec 3, 2020 11:52] |
Hey James, aren't you too young to...know the Rubettes?
Most epic "Truckdrivers Gear Change" ever @1:53 :-)
https://www.youtube.com/watch?v=eXtsuVjjAD4
BTW, that sorta cries for a few theme tourneys for moremovers!
#42 Must answer everything. Pricewinner gets a fresh towel.
#23 Solution must be secret. Pricewinner gets Novichok-ed!
#4711 Problem must stink. Pricewinner gets a free shower.
#137 Author must be physicist. Pricewinner gets a DESY tour. |
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(71) Posted by James Malcom [Thursday, Dec 3, 2020 16:09] |
Thanks for the wonderful new music Hauke! And no, I hadn't known of "The Rubettes" before. Too young, as you said. :-)
And for tourney's with odd themes, I genuinely want a dummy pawn tourney-this upcoming Christmas would be nice-as to see it applied to modern day composing by modern composers and themes and such. Other than myself, of course. |
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(72) Posted by Guus Rol [Thursday, Dec 3, 2020 18:35] |
I know the Rubettes. Too old ... |
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(73) Posted by Hauke Reddmann [Friday, Dec 4, 2020 20:20] |
Note that Shinkman unstalemates four men.
I'm not that willing to check all 171 entries
of the Albrecht (unstalemate+unpin -
I have no idea how to further restrict,
a pessimistic matrix search gave nothing)
and thus boldly claim this is new :-)
(= 8+10 )
Feel free to let me eat my words or improve. |
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(74) Posted by Hauke Reddmann [Friday, Dec 4, 2020 20:40] |
Note added in wordeating:
(= 9+13 )
7 unstalemated men (2 vars). I hope nobody
takes offense at the sB. |
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(75) Posted by Guus Rol [Friday, Dec 4, 2020 20:43] |
comment to #73. I looked at the previous diagrams and thought I knew what is going on but this one appears to invalidate that. Why is there a black pawn on h6? Disables Bf2-e3-g5 and Qa3-c1-g5 (the latter to release a black pawn on a4 which is not yet there).
On a separate note. The diagram also suggest an e.p. release which is commonly unjustified. Am I missing something? |
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(76) Posted by Hauke Reddmann [Friday, Dec 4, 2020 21:07] |
Confused I am, young Jedi. #73 is a perfectly normal
#2 with solution Bd4, and without Ph6 Be3 is a cook.
Improvement on last diagram:
(= 8+12 )
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(77) Posted by Guus Rol [Friday, Dec 4, 2020 21:17] |
Jedi - thanks! Young - a 1000 thanks! |
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(78) Posted by Hauke Reddmann [Friday, Dec 4, 2020 22:46] |
Here's one for Jacques:
(= 9+7 )
Also 20 variants (see very early post). All my bag of tricks failed - IF 21 THEN cooked. |
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(79) Posted by Andrew Buchanan [Saturday, Dec 5, 2020 05:55] |
You read it here first: PDB will be offering a "records page" feature very very soon. Gerd will post the first such page in a few days, when the next issue of Die Schwalbe comes out. The idea is that for a page covering a particular area, one skilled volunteer will manage the HTML content, and periodically send a file to Gerd to post. I think this thread offers a great bunch of new content which deserves to be showcased in that format. |
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(80) Posted by Hauke Reddmann [Saturday, Dec 5, 2020 10:04] |
@Andrew: About time! (Guess which book is lying
on my desk at the moment again, hint: begins
with Sir Jeremy and ends with Morse) This would
save so much time for componists. The Gik and
the Bonsdorff could be plundered first.
I think what needs most brain grease is developing
a decent classification system. |
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MatPlus.Net Forum General Construct a correct #2 with the most stalemate releases |