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MatPlus.Net Forum General Free-for-all "Worst Move" task
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(1) Posted by Hauke Reddmann [Tuesday, Apr 24, 2012 12:53]

Free-for-all "Worst Move" task

(= 4+5 )


Impress me by a) finding out what I wanted to show without needing hints,
b) up the ante "6" (OK, that WAS a hint :-), c) making a #2 of it instead of a
cheap h#1.
NO bonus points for actually solving it :-)

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(2) Posted by Juraj Lörinc [Tuesday, Apr 24, 2012 13:52]; edited by Juraj Lörinc [12-04-24]

Pin of Re4, unpin of Sg5, line opening to e5, blocking of d5, closing of Bc4 line, unguard of e6.

Some time ago I was plying with similar accumulation of errors, in the s#2 Anticirce form, but the outcomes were quite boring. I can look them up as they are unpublished and deemed unworthy of publication in normal print. But as an illustration of debate...

Does anyone know a good problem with such deliberate accumulation of errors?

(edit: wrong modal verb)
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(3) Posted by Dan Meinking [Tuesday, Apr 24, 2012 15:28]; edited by Dan Meinking [12-04-24]

Does this count as "6"?

(= 6+9 )

h#2 (6+9) C+ 1.Kc5+ c4 2.dxc3 ep Re2#

Black's 2nd move: opens d1-d6, opens e3-c5, closes a1-d4, closes b3-f3 and doubly-opens e4-b4. Plus it opens b5-f1.
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(4) Posted by Hauke Reddmann [Tuesday, Apr 24, 2012 16:30]

@ Juraj: 100%! :-O
Yes, PLEASE add your material. It would be interesting whether
s# (which is, well known, more complicated that n#) can add
even more motifs.

@ Dan: As you see from Jurajs post, I tried to max out the
*different* motifs. (Although, obviously, pin/unpin depends
on line opening/closing, so that's rather academically.)

@myself: So I won't get around composing a #2 with 6 motifs
myself :-)

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(5) Posted by Juraj Lörinc [Tuesday, Apr 24, 2012 19:47]

To my surprise I have already published the first example.

Juraj Lörinc
Pat a Mat 2006
(= 10+10 )
s#2 Anticirce (10+10)

1.Rb8! zz
1...Rb7 2.Kxb7(Ke1)+ Bxc2(Bc8)#
1...Rc7 2.Kxc7(Ke1)+ Bxc2(Bc8)#
1...Rd7 2.Kxd7(Ke1)+ Bxc2(Bc8)#

Every defence has 5 errors:
- opening Bh4-d8
- opening Rf7-d7
- activating pf3-e2 by unblocking of e7
- hideaway of bRe7 from Bh4 (3.B×e7(Bc1)??)
- allowing capture by wK
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(6) Posted by Hauke Reddmann [Wednesday, Apr 25, 2012 11:18]

...using Anticirce obviously adds the possibility for
some surplus rebirth motifs.
(BTW, the 2# with 6 motifs I did yesterday at midnight.
No big deal for a supergenius like me :-) I add it here
as soon as someone published it.)

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(7) Posted by Neal Turner [Wednesday, Apr 25, 2012 12:10]; edited by Neal Turner [12-04-25]

I've always thought it paradoxical that although we talk in positive terms about 'strategic richness', composers go out of their way to restrict strategic effects in the name of 'purity'.
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(8) Posted by Juraj Lörinc [Wednesday, Apr 25, 2012 12:37]

Hauke, yes, you are absolutely right about the Anticirce possibilities. Naturally, it was not my aim to show as many errors in the defences as possible, rather I simply wanted to compose an interesting Anticirce s#2 (as it was once the theme of Wola Gulowska). The accumulation of errors was just one idea I briefly touched. No doubt, if we concentrate on the numbers, 5 should be easily surpassable, 6 too, my estimate is that 10 should be possible (in one variation).
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(9) Posted by Rewan Demontay (Real Name: James Malcom) [Thursday, Apr 2, 2020 00:03]; edited by Rewan Demontay (Real Name: James Malcom) [20-04-02]

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MatPlus.Net Forum General Free-for-all "Worst Move" task