The Invention of an 'Ideal' Vladimirov

The Invention of an 'Ideal' Vladimirov

Postby Z Kornin » 22 July 2011, 12:17 pm

Until 1976 there was still a considerable measure of perplexity in the Problem World about - even - the real possibility of showing this pattern - the Vladimirov theme - in a Twomover. But, already in the next year, in one of the early works by pioneer composers from the former Soviet Union, there was:

A. Boitmanis & A. Dombrovskis
"Bulletin CSK" 1977

#2


Before the key that will build a battery, the future front piece performs a pair of TRIES, first 1.Ne6? (A) threatening 2.Rd4, but 1...b4! (a) and second 1.Nd3? (B) waiting - but 1...e6! (b) Finally, comes the KEY 1.Rc6! (waiting 1...a/b, 2.A/B). Zugzwang, the focal effect along the 6th horizontal, and the set flight to 'b4' were already important details introduced to enhace the artistic effect (as compared to the prototype launched that same year) - But there was also another feature - linking the refutation of one of the tries to the other try - namelly: If, after 1.Nd3 (B) , comes 1...b4 (a), then 2.Nxb2# (a new mate). This kind of virtual change maybe was not intentional - even if it appears in another #2 by Boitmanis and exactly in a try that takes the flight... Certainlly not - say - programmatic (The required Theme is already difficult enough!) - Even so: Still a plus, a pleasant feature...

V. Sitnikov
"Sahs" 1979
#2

1.c4 A /Ke3 B ; 1... e3 a / Kxc2 b - 1.Bd4! etc Another early example, with a suggestive 1/3 battery along the second horizontal. After the key, we get two different batteries. When the front piece is a Pawn, there's no danger of some random firing! Tries and the actual solution are of the 'Waiting' type ( :roll: Brief digression: Usually Zugzwang problems without set-mates will need some very strong justification - being authentic Vladimirovs certainlly is reason enough - as this Theme is possibly the most difficult of this kind! Others count some thousands, 'Vlads' are a few dozens, and the majority are versions of the same matrices - not always improving the contents. ) Relevant in the above example is that we got again a virtual change: After try 1.c4 A, if black answer with defense b 1...Kxc2, a new, purelly virtual 2.Q d2 mate arise. A common characteristic of the examples above, is that one of the tries block the square where the refutation of the other try takes place - hence, they are not suitable for making two of the virtual changed mates ...

Could this nice effect be doubled? We can not assert exactly when was this question raised for the first time, but the answer - yes - came just two years after the introduction of the new pattern, and exactly by one of the leading creators in this field . Enjoy this Empire State Building of the 'Vlad's :


Milan Velimirovic
"Schach-Echo" 1979
1-st Prize
#2

SET: 1...Kxc3 2.Qh3 THEMATIC TRIES 1.Sa4? (~) A, 1... ba3! a, if 1... bc3 b then 2.Sc5:#; 1.Sc4:? (~) B , 1... bc3! b, 1... ba3 a 2.Ra3:#; KEY 1.bxc6(en passant)! (~), 1... bc3,ba3 2.Sc4:,Sa4#. ( Besides of a complete & real Vladimirov, he got virtually changed mates - for the first time ! - for A/b AND B/a ; and finally an extra try 1.Qa7? (~), 1... Kc3:!, 1... bc3,bae with a pair of new mates 2.Qa4,Qa3:#) .
Last edited by Z Kornin on 25 July 2011, 10:32 am, edited 1 time in total.
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Re: The Invention of an 'Ideal' Vladimirov

Postby Z Kornin » 23 July 2011, 8:38 am

Conceptualized and consummated - in the midst of a spring-like period when new schemes emerged like ... :roll: ... asparaguses in a propitious soil ... The initial élan, however, was illusory if suggested that in the future a steady stream of examples would lead this extended form to the level of a quotidian realization - No! They remained very scarce. Regular (normal !?) Vladimirovs were also a rarity - Even so :shock: :

Vitaly Kwiatkowski
"Hlas L'udu" 1982


#2
1.Rc5? A 1... e3! a (1... Se3 b 2.Rc8#); 1.Ra5? B 1... Se3! b (1... e3 a 2.Ra8#); 1.Bf4! (~), 1... a/b 2.Rc5,Ra5#.

( Very parsimonious presentation: A Mini-Meredith = using 8 to 10 pieces)


Helmut Zajic
"SAXA" 1988
Comm.


#2

1.Sfd6+? A Kf3! a, (1... Kd5 b 2.Rc5#); 1.Sbd6+? B Kd5! b , (1... Kf3 a 2.Rc2#); 1.Rf6! threatening 2.Sc5/Sbd6/Sd8#, 1... Kf3,Kd5 2.Sfd6,Sbd6#

( In spite of the checking tries and random firing threat - a classic - :) 'Black King in the Globe of Death')
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Re: The Invention of an 'Ideal' Vladimirov

Postby Z Kornin » 7 October 2011, 11:40 pm

Mihailo Stojnic
"Mat Plus" 1998/9
1-st Pr


#2

n6B/2P4K/b1P3RR/1QpNPk1p/3prNp1/b5p1/7q/1B6

Very impressive. A detailed solution can be found here http://www.systems.caltech.edu/~mihailo ... blems.html

Kovačević, Marjan
Schach-Echo, 1979
2nd HM


#2

8/1p4K1/qp6/7B/R2P1Q2/2BR3N/1N1PP1p1/4k1rn

1.Re3[A]? (2.d3#) 1...Qd3 2.exd3# but 1...Qa5[a]!; 1.Qe3[B]? (2.Qxg1#) but 1...Rf1[b]! ; Key: 1.e4!

A masterpiece, with a unique conception: The battery building takes form of an actual block of the 'e' Pawn in it's initial position. If the Pawn could jump over the pieces - like a Knight - say, here from e2 to e4, this strong mechanism would not be possible) . One of the all times best Vladimirov's. The relationship between Tries and respective refutations, however, is just following: If the refutation of one try is played after the other try - the mate actually threatened take place: therefore, not 'Ideal'. Even so, a virtual mate 2.exd3 (after Try 1.Re3 Qd3) appears as an excellent embelishment.
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Re: The Invention of an 'Ideal' Vladimirov

Postby garykevinware » 7 January 2013, 3:41 pm

The book, Encyclopedia of Chess Problems: Themes and Terms by Milan Velimirovic and Kari Valtonen, says the following about the Ideal Vladimirov:
Vladimirov theme with changed mates after non-defeating thematic defenses in tries. First realized by Mihailo Stojnic in 1997.



Mihailo Stojnic Mat Plus 1997 #2

1 exf4? ~ 2 Nxg4#, 1...Nc3!
1...Ne3 2 Qxe3#
1 c3? Nxc3 2 Bxc3#, 1...Nxe3!
1 Bd4! Nc3 2 exf4#
1...Nxe3 2 c3#
1...fxe3,f3,Nb2,c3 2 Qf8,Nxg4,exf4,Rf1#
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Re: The Invention of an 'Ideal' Vladimirov

Postby Z Kornin » 13 January 2013, 5:34 am

Vladimirov theme with changed mates after non-defeating thematic defenses in tries.

ok

Milan Velimirovic "Schach-Echo" 1979 1-st Prize
#2 FEN RRN5/3Q4/1N1P4/1PpK4/1pp2P2/PkP5/prr1P3/nbBB4

changed mates after non-defeating thematic defenses in tries.


1.Sxc4? [A] zz
1. ... bxa3 [b] 2.Rxa3 #
1. ... bxc3 [a] !

1.Sa4? [B] zz
1. ... bxc3 [a] 2.Sxc5 #
1. ... bxa3 [b] !


Same feature also here http://www.yacpdb.org/?id=35147# ... and here http://www.yacpdb.org/?id=254537 )


First realized by Mihailo Stojnic in 1997.

search for Milan's article in "Mat Plus" around 1997 (or 98?!) "20 years of Valdimirov Theme" for an explanation ...

:roll: (something like: first without tricks like en passant , checking tries (Zajic 1988), tries taking a flight ( Kwiatkowski /Kwjatkowski ) :wink:
Last edited by Z Kornin on 7 March 2013, 11:26 am, edited 1 time in total.
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Re: The Invention of an 'Ideal' Vladimirov

Postby garykevinware » 13 January 2013, 12:41 pm

See page 43 of the following, http://www.milanvel.net/pub/MP_Spec.pdf.
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Re: The Invention of an 'Ideal' Vladimirov

Postby Z Kornin » 7 March 2013, 11:55 am

Milan Velimirovic
Again an “Ideal Vladimirov”, but here in very unconventional
form: the greatest difficulty of the theme – how to avoid the key move to be a mate in tries – here is resolved by
means of “It’s now or never” particularity of the en passant capture. The trick itself is not new, it was in fact
“discovered” by myself ,,,
(note: see "Schach-Echo 1979 1-st prize, presented here above)
...also for an Ideal form, but that’s where the
similarity ends and the differencse begin – the biggest one is that mates are delivered along two different lines. The
most delicate constructional touch is closing of the b7-d5 line by the key move. 1.Êa3? (~), 1... Èe7:!, 1... Ëe7:
2.Êg3#; 1.Êd2? (~), 1... Ëe7:!, 1... Èe7: 2.d6# (1... c4 2.Êb4#); 1.dc6(ep)! (~) 1... Èe7:,Ëe7: 2.Êa3,Êd2# (1...
Ëf8: 2.Ëd7#); (1.h3? Ëe7: 2.Êh2#, 1... Èe7:!; 1.Êa6? Ëe7: 2.Êb6:#, 1... Èe7:!; 1.Ëc8? Ëe7: 2.Ëc6#, 1... Èe7:!).


Стојнић, Драган
Mat Plus, 1999
2nd Prize



FEN NR3N1n/PB2Rrp1/1p1kPprb/1KpP1Pp1/6P1/8/Q6P/B7
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