MatPlus.Net

 Website founded by
Milan Velimirović
in 2006

19:50 UTC
 
  Forum*
 
 
 
 

Username:

Password:

Remember me

 
Forgot your
password?
Click here!
SIGN IN
to create your account if you don't already have one.
CHESS
SOLVING

Tournaments
Rating lists
01-Oct-2019

B P C F





 
 
MatPlus.Net Forum General The Belén: from Loyd to Hoffmann
 
You can only view this page!
(1) Posted by Zalmen Kornin [Monday, Sep 30, 2019 11:03]; edited by Zalmen Kornin [19-10-03]

The Belén: from Loyd to Hoffmann


First to the absolutely breaking news:

Peter Hoffmann
"Der Reiz des Ungewöhnlichen"
9/2019
(= 14+9 )
#5

A wonderfull surprise! PH presented today a brand new Valladao-Belen, its already published in Erik Zierke's online book in PDF on Hoffmann's works:

http://www.berlinthema.de/AUSWAHL_PH.pdf

page 181, with full solution and comments. In page 180 are also presented, and commented, the known examples of Valladao-Belen (Just two so far, one of them evolved online recently here in MP):

http://matplus.net/start.php?px=1569833313&app=forum&act=posts&fid=xshows&tid=2343&pid=17926#n17926

After a promotion to Queen, and a promotion to Knight, now we have a promotion to Rook.

****** Peter, thanks for Your interest in the Valladão-Belén!! :)
 
(Read Only)pid=17968
(2) Posted by Rewan Demontay (Real Name: J. Malcom) [Monday, Sep 30, 2019 14:24]; edited by Rewan Demontay (Real Name: J. Malcom) [19-09-30]

Go Hoffman! Now all we need is a bishop promtion! I honestly don’t mind if anyone uses my bishop promotion scheme from the other thread and throws in an en passant-it is free to use after all.

Also, who tipped off Hoffman about the Belen thread?

And having my problem published, especially by Hoffman if all people......:-D

I like that C+ that’s there.
 
 
(Read Only)pid=17969
(3) Posted by Rewan Demontay (Real Name: J. Malcom) [Monday, Sep 30, 2019 20:18]; edited by Rewan Demontay (Real Name: J. Malcom) [19-10-01]

BLANK
 
   
(Read Only)pid=17970
(4) Posted by Zalmen Kornin [Tuesday, Oct 1, 2019 01:06]

Rewan, Personal Message inbox for You
 
   
(Read Only)pid=17971
(5) Posted by Rewan Demontay (Real Name: J. Malcom) [Thursday, Oct 3, 2019 23:37]

ZK, when you mention a Loyd with the Belen, I assume that you refer to the below #5 in which

1. Qxa3+ Kc2 2. Qxb3+ Rxb3 3. Ne3+ fxe3 4. Bxd3+ Kxd3 5. 0-0-0#

is a one of the main sidelines?

YACPBD: https://www.yacpdb.org/#444753

Loyd, Samuel
The New York Clipper (E50) 1857-03-28
WTM, #5

(= 7+10 )

 
   
(Read Only)pid=17976
(6) Posted by Zalmen Kornin [Friday, Oct 4, 2019 04:28]; edited by Zalmen Kornin [19-10-04]

Yes, Rewan ... Exactly this 'forgotten Loyd'. The Belén is clearly the solution, and 2.Ra2 + a dual with quite trivial play. It is not, for example, in A. C. White's "Sam Loyd and His Chess Problems". Loyd adapted the scheme to illustrate a Fiske story (see the 1858 fourmover "The Arena"). There, the black King goes from c1 to e3, and the point is a new motivation for Castles (and not Rd1): unpin the other Rook from the first horizontal).
 
   
(Read Only)pid=17978
(7) Posted by Zalmen Kornin [Tuesday, Oct 8, 2019 13:07]; edited by Zalmen Kornin [19-10-14]

In his excellent # 5, Peter Hoffmann introduces important novelties in the VB field: The promotion move act in three different levels of significance (control of b3, of b5 avoiding to affect d3, and - not least- create a threat of mate in two in e4, allowing a consistent en passant part in real play) : 2.b8 = R is the most impressive single movement in the whole VB's history!

He refers to the Belén as a "motif". In the old Rebnora forum discussions Frank Richter alluded to an "ornamental effect". For Erik Zierke, the Belén condition arrive to become an obstacle ('Hindernis') for the more satisfactory expression in the Valladão field (in the same book we find others of Peter Hoffmann's creations in this field).


**** Yesterday a new Valladao-Belen was published, the first novelty in one week. We're offering a surprise gift (for everyone, including non smokers) for the best comment here on this other thread.


http://matplus.net/start.php?px=1570532147&app=forum&act=posts&fid=xshown&tid=2367&pid=17998#n17998



#
 
   
(Read Only)pid=18001
(8) Posted by Zalmen Kornin [Tuesday, Oct 15, 2019 14:06]

*breaking news again*

On the 13th (Sunday) another Valladao-Belen appeared online, Peter Hoffmann presents the following (which I already can remark, introduces at least one important novelty regarding all other V-Bs published so far...) Later I'll be back. For the while, solution already published in Zierke's online book, page 182 - and, returning to page 181, our's too (JM's & mine) with solution and comments!


Peter Hoffmann
"Der Reiz des Ungewöhnlichen"
10/2019
(= 13+9 )
#5

Now we have two, very different, Valladao-Belen with promotion to Bishop. ******* Thanks again, Peter!
 
   
(Read Only)pid=18054
(9) Posted by Zalmen Kornin [Sunday, Oct 20, 2019 09:54]; edited by Zalmen Kornin [19-10-20]

So we have a Valladão-Belén (say) AUW spread over five diagrams (including a Bishop's PAIR!): much more than one could imagine, since the 'initial example' had disappeared from the net, and only the reference on Tim's website was left ... Malcom's initiative was important, triggering the realization that there hardly would ever be a promotion key #4 again ... But if we didn't combine the clearence of b1 with the key, not even a #5 would be enough!

The question of which of the promotions to Bishop appeared before would, in my view, not be so relevant (but the fact that now we have five promotions in five different squares is remarkable!). By the way, the latter of PH above presents for the first time a totally obligatory movement order, the important novelty regarding all the others so far I referred. And ours, the penultimate on the list, besides this, so to speak, ambiguity in the presentation, still has the 'single step dual' in the Real Play - albeit in the vigorous Virtual Play, important for involving promotion to the stronger piece with partially same march that the Bishop, the double step and stalemate try parts appear in unique move order.

In recent months, the Valladão is, as it were, in evidence: Pal Benko had left a last riddle, involving the combination of motives envisioned by Brazilian Joaquim Valladão Monteiro, with a given checkmate attained from the starting position: a question that is (I believe) still open is: if an only white OR black Valladão could be the solution (since with a mixed Valladão it has multiple solutions.)

And now in October an article, by Werner Keym, appears in the magazine "Die Schwalbe" in which the best examples of Valladão plus AUW, and plus (!) Excelsior are reviewed, and the most represented author is PH. His productions: in #4, the first Orthodox Valladão plus AUW, which we already know from page 19 of the book "Der Reiz des Ungewöhnlichen". And his S#8 and S#9 presenting Valladão+AUW+Excelsior - which we already see in page 20 of the same PDF, are referred to, by the author of the article (who also proposed the Keym-Task!) with the following words:

******** "Superkonstrukteur Peter Hoffmann bewältigte diesen Task als einziger und zwar dreimal (P1092157-59)".
 
   
(Read Only)pid=18083
(10) Posted by Zalmen Kornin [Tuesday, Oct 22, 2019 23:14]; edited by Zalmen Kornin [19-10-23]

... and again!!

Peter Hoffmann
"Der Reiz des Ungewöhnlichen"
10/2019

(= 10+9 )
#5

Solution already on page 182 of Erik Zierke's book. Knight promotion in an uncluttered setting, that dismisses both stalemate try and zugzwang.


What next? Well, keep Your astonishment for a moment on, turn to page 183: PH presents the first ever #6 Valladao-Belen, and the first ever with TWO promotions !! Solution also in EZ's PDF, and diagram already reproduced here: "P Hoffmann #6: Beyond the Valladao-Belen"



https://www.chessproblem.net/viewtopic.php?f=7&t=1080


***** Thanks again, and again... Great achievements, Peter!!



#
 
 
(Read Only)pid=18114

No more posts


MatPlus.Net Forum General The Belén: from Loyd to Hoffmann