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MatPlus.Net Forum Threemovers Sacrifying a queen
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(1) Posted by Mihail Croitor [Monday, Jun 2, 2008 12:28]

Sacrifying a queen

I want to make some notes about queen's sacrifying for inviting bK under white battery in more then 1 variants. This theme (with 2 variants) was realized in my problem, published into "Mat Plus No28, 2007"
(= 7+9 )
M.Croitor, MatPlus 28, 2007
1. Rh5! ~ 2. Qc5+! Kxc5 3. Be7#
1. ... Be5 2. Qxe5+! Kxe5 3. Be7#
1. ... e5 2. Rh6+ Kd5 3. e4#
Inviting bK under frontal wB+wR battery.
This theme firstly (as i found) was demonstrated with Loshinsky & Hairabedean
(= 10+11 )
L.Loshinsky, C.Hairabedean, 2pr, Szachy, 1953
1. Bg3! ~ 2. Sg7+ Kg4 3. Qh5#
1. ... Kg4 2. Qf3+ (or 2. f3+) Kxf3 3. Se5#
1. ... Ke6 2. Qd5+ Kxd5 3. Sd8#
1. ... Rf7 2. Qe4+ Kxe4 3. Se7#
Here works wS+wB (diagonal) battery.
Very surprising for me was Soroka's problem. I finded it at Riphey's tourney.(= 9+5 )
I.Soroka, 3 prize, Jeltonojko JC, 2006
Here was used wB+wR (diagonal) battery, with this mechanism author obtained 3 sacrifices!
1.Qb8!! ~ 2.Qd6+!! Kxd6 3.Rg5#
1. ... Kd4 2.Qe5+!! Kxe5 3.Rg4#
1. ... Kxb6 2.Qc7+!! Kxc7 3.Rg6#
Very pleasant position, attractive solution! As my opinion, shure :).
Another scheme of this theme was proposed by Agapov in 1999.
(= 8+7 )
I.Agapov, 1-2 prize, "64-ШО", 1999
Here He proposed the fan of batteries!
1. Bh5! ~ 2. Nf3+ Kxd5 3.Qxc6#
1. ... Ba4 2. Qf4+!
1. ... Kd3 2. Qd2+!
1. ... Ng6 2. Qe3+!

After viewing this problems occured a question - exist any posibility to realize wQ sacrifying in 3 variants under frontal battery?!
in russian, without grammatical errors :-D -
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(2) Posted by Hauke Reddmann [Monday, Jun 2, 2008 15:56]

I once saw a problem which might fit the bill.
Maybe in "Im Banne des Schachproblems"?
I still know that the compilator commented
that (besides the author...forgot the name,
but I think it was an over-the-board VIP)
only Loschinski could have done this.
Ring a bell? Anyone? Have to research otherwise.

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(3) Posted by Michael McDowell [Monday, Jun 2, 2008 17:34]

Is this famous Wurzburg problem of any interest?

Otto Wurzburg
Pittsburg Gazette-Times 1912

(= 11+8 )

Mate in 3

1.c7 (>2.Qe3+/Qe5+)

1...Qxf4 2.Qd5+ Kxd5 3.Bd3
1...c2 2.Qe5+ Kxe5 3.Bd3
1...Sg4 2.Qf5+ Kxf5 3.Bd3
1...Qxe2 2.Qd4+ Kxd4 3.Re6
1...Ra3 2.Qe3+ Kxe3 2.Re6
2....Qxe3 3.Bc6
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(4) Posted by Hauke Reddmann [Tuesday, Jun 3, 2008 11:00]

Yup, that one was exactly what I meant :-)
(Of course not in "Im Banne des Schachproblems" but
in "Problemkunst im 20. Jahrhundert", #322. But I got
the authors right :-)

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(5) Posted by Mihail Croitor [Tuesday, Jun 3, 2008 12:47]

Dear Michael, thank You!
finest example!
After this responce i obtained another question - is it posible in 4 variations? :)
I think, its imposible.
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(6) Posted by Zalmen Kornin [Tuesday, Jun 3, 2008 13:10]; edited by Zalmen Kornin [08-06-03]

Wurzburg shows six mates with two batteries... perhaps the repetiton of the mating moves will be considered a defect (?!) - The scheme showed by Agapov for three batteries with the same front piece is very suggesting, isnt? (Nice if someone could show an older example, otherwise I'll keep calling this "my scheme")...

Z. Kornin
"Tidskrift för Schack" 1986

(= 12+6 )
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(7) Posted by Michael McDowell [Tuesday, Jun 3, 2008 16:52]

Sorry Zalmen, you were about half a century too late...

Alexander Goldstein
1-2 Prize e.a. Netherlands v Poland 1937

(= 8+10 )

Mate in 2

1.Sc5 (>2.Qd8)

1...Kf8 2.Sxg5
1...O-O 2.Sxh6
1...Ke7 2.Sxh8
1...Sxd5/Sd7 2.Sd6
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(8) Posted by Milan Velimirović (+) [Tuesday, Jun 3, 2008 18:52]; edited by Milan Velimirović (+) [08-06-03]

Some thirty years ago (is it possibile that it was so long ago!?) I was entertaining myself by completing the table of all possible duels in Fleck theme. One of more successful problems from this series incidentally shows the triple battery, which opens four times:
Milan Velimirović
Mat 1979
(= 11+3 )

1.Bf4! ~ 2.Sa5,Sc2,Sd2,Se3#
  1... Kd4 2.Sb2#
  1... Ke6 2.Se3#
  1... Kc5 2.Sd2#
  1... Kc6 2.Sa5#
Few decades later I used the similar matrix for a complete 4+4 Karlstroem Fleck:
Milan Velimirović 369. Mat Plus 1997
FIDE Album 1995-97, A121
(= 12+8 )

1.Bd4! ~ 2.Sec4:/Sf3/Sg4/Sc6:#
  1... Kd6: 2.Sc4:#
  1... Kd5 2.Sf3#
  1... Ke7 2.Sc6:#
  1... cd4 2.Sg4#
  1... Kf6 2.Sd7:#
  1... Rd3: 2.Sd3:#
  1... Sf7: 2.Sef7:#
  1... Sg6: 2.Sg6:#
  (1... Rb3: 2.Sec4:#)
Not the greatest twomovers in the history, but I had a lot of fun while constructing it - batteries are always a joy!

Well, this thread took a weird turn: where have the queen sacrifices gone? :-)
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(9) Posted by Siegfried Hornecker [Tuesday, Jun 3, 2008 19:54]

Since Milan showed batteries without queen sacrifices, I must fill the gap. Sadly I only have a single battery but it's by another great Milan V. ;-)

(= 11+11 )

Milan Vukcevich
Chess Life and Review 1985, 3rd prize
Mate in 3

1.Qe6!! Qxe6/Rxe6/Rxd5/Bxb5/Kd4 2.Se7/Se3/Qd6+/Qc6+/c5+

Now before Marjan Kovačević posts his problem, let me do this. :o)

(= 5+7 )

Marjan Kovačević
Liga Problemista 1985, 1st place

1.Kg4 Qf3+ 2.Kxf3 Se5 mate
1.Bd3 Qe4+ 2.Kxe4 Se7 mate
1.Ke6 Qd5+ 2.Kxd5 Sd8 mate

These were the sacrifices, now where are the batteries? :o)
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(10) Posted by Steven Dowd [Thursday, Jun 5, 2008 09:23]

So Hauke, Mihail (great article!) and all - the type of sacrifice Mihail is describing is a Hineinziehungsopfer ala Tartakower-Reti, yes?

I am not sure there is an English term for that - I liked the use of the term "invite" in the article as a "pulling in..."
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(11) Posted by Zalmen Kornin [Thursday, Jun 5, 2008 10:20]; edited by Zalmen Kornin [08-06-05]

thanks for the examples... of course my post was, and consciously, so to say, self-ironic: nobody would seriously claim here, or elsewere, the invention of the 'revolving machine gun' (!? - :o) new) - or 'fan of batteries', as Mihail define it. Only I had no knowledge of some concrete example before the opportune answers ... Well, the discussion is not turning exactly to an off-topic development, as the Q-sacs are introduced as an extension to the idea of multi-bats in Agapov's 3-er... Goldstein's task (with 0-0 !!) is a classic, and Velimirovic's developments are highly notable!
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(12) Posted by Hauke Reddmann [Thursday, Jun 5, 2008 14:06]

Yup, "Hineinziehungsopfer" or in English chess language, "decoy".
(Rebnora regulars still know :-)

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MatPlus.Net Forum Threemovers Sacrifying a queen