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(21) Posted by Hauke Reddmann [Monday, May 5, 2014 11:10] |
@Arno: Very neat that there are no double refutations
(and BTW the matrix you stole from me I stole from
Sir Jeremy Morse, so rather credit him :-)
BTW, I also made a "21" (with the trick that e.p.
counts separate) but your position is far superior.
Hauke |
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(22) Posted by Jacques Rotenberg [Monday, May 5, 2014 12:57] |
22!
(= 15+9 ) 2# |
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(23) Posted by Jacques Rotenberg [Monday, May 5, 2014 13:09] |
But the position of Arno has another positive aspect : all the pieces are "needed" for the actual play, it means that any piece you withdraw will make the problem incorrect. It is not the case here. |
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(24) Posted by Kevin Begley [Monday, May 5, 2014 17:18]; edited by Kevin Begley [14-05-06] |
I managed more than 22, based upon the same matrix.
I'll post it later, if nobody does better (and Jacques doesn't find an equivalent).
I think much more may be possible, but it seems to become an exercise of proving retro legality.
edit: computer problems... don't hold me to 23, as i cannot verify now. |
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(25) Posted by seetharaman kalyan [Tuesday, May 6, 2014 20:17]; edited by seetharaman kalyan [14-05-06] |
@ Geir Sune Tallaksen Østmoe
<<<Oh, wait... with Nb1, 1.Nc3 would not even be a try, since Black also has 1...Rh6! >>>>
Sorry... I missed this simple defect ! |
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(26) Posted by Hauke Reddmann [Wednesday, May 7, 2014 11:04] |
(= 15+9 )
This, for the record (pun unintended) is the "unconditional" record
for different refutations (29) by Morse (#212 in his "Tasks&Records").
It will be interesting how high MPF gets with the additional and very
demanding condition "any move except the solution is a try" or even
"each try has a different refutation" condition.
Hauke |
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(27) Posted by Hauke Reddmann [Saturday, Apr 9, 2022 14:45] |
Epic bumpage!
*Maybe* Kevin can up the record. So that he hasn't to search for the
relevant thread for an eternity, I bump it with a nice 2# which also could
fit into James' Also Epic 2# From Stalemate Thread.
(= 16+7 )
Arsen Dobrila, The Problemist, September 1989
16 unstalemating tries, each piece one! (+4 if counting ep) |
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