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MatPlus.Net Forum General Construct a correct #2 with the most stalemate releases
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(101) Posted by Hauke Reddmann [Wednesday, Dec 9, 2020 13:28]

#101? This means starting anew! (Yeah! To be fully 4chan-compliant,
I now would have to call me GET-happy. [Defused to not make Andrew
a sad panda :-)])

You probably all thought, "What is the point of wK in check when
you at most can unpin two pieces to maximize the number of black moves,
the checking piece being pinned itself otherwise Black not being
stalemated, the interfering piece being pinned after the key and
the one THAT piece unpinned wreaking havoc?

And I thought: Frell it! 23! :-)
(= 10+6 )

With promoted material and quasi-duals it can be easily extended to 25.
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(102) Posted by Hauke Reddmann [Wednesday, Dec 9, 2020 20:33]

Some addenda:

(= 8+6 )

24(2), very dualistic

(= 8+10 )

25(3), with promo and check but no duals
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(103) Posted by Rewan Demontay (Real Name: James Malcom) [Wednesday, Dec 9, 2020 23:08]

Wonderful beats of the orignal 20, Hauke!
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(104) Posted by Guus Rol [Thursday, Dec 10, 2020 12:11]

I am proud to have contributed the king check idea, the rest is Hauke's :-)
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(105) Posted by Ulrich Voigt [Thursday, Dec 10, 2020 12:37]

Aren't there a few duals in the last one? After 1... Rg5,Rg6,Rg7,Rg8 White has both 2. Rg3 and Rd3.
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(106) Posted by Hauke Reddmann [Thursday, Dec 10, 2020 18:02]

(Homer Simpson imitation) D'oh! I just looked at the sB not
playing silly bugger that I completely forgot to check the R :-(
Should really move to Olive which finds this automatically
via Popeye (I like my minimalistic MateMaster but it does not
show variants at all. THX for noting.
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(107) Posted by Hauke Reddmann [Thursday, Dec 10, 2020 18:28]

But now for some content again :-)
Jacques suggested merely adding more moves to the set. One could try to semi-unpin a Q (+28):
(= 10+9 )

Problem chess is dangerous to your health - this lil bastich kept me up until one o'clock in the night and it still sucks. Especially the fact that 1.Rd4! also *takes* a few move from the Rd6 is inacceptable. (The inverse matrix B/R is still more hopeless.)
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(108) Posted by Frank Richter [Friday, Dec 11, 2020 08:41]

Yes, Hauke ... I recommend to take a break and have a KitKat and to check thread's title carefully ;-)
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(109) Posted by Hauke Reddmann [Friday, Dec 11, 2020 11:00]

Protest! The last one is crappy but NOT incorrect :-)
(In the standard sense - I didn't check thoroughly if
there is a dual after a defense against Rf7#.
This is just an incentive to Jacques to top his
entry about added mates, without any dual on any
of the added moves, and a demo why this is very hard ;-)
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(110) Posted by Jacques Rotenberg [Tuesday, Dec 15, 2020 14:34]

a slightly lighter version of post(81)

(= 10+7 )


1.Rg4? Bd4!

2 (21) or 21 (2)
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(111) Posted by Hauke Reddmann [Monday, Oct 4, 2021 11:47]

After ages (had to pass my Master exam, y'know :-) an incentive for Jacques, a matrix for 22 and possibly even more (still slight duals after Rg4 and Re2):

(= 12+9 )


And after one year of work (nope, ten minutes waiting
for the ultimate inspiration :-) dual-free 22 are done!

(= 12+6 )

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MatPlus.Net Forum General Construct a correct #2 with the most stalemate releases