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MatPlus.Net Forum Fairies Corrections
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(1) Posted by Joost de Heer [Saturday, Nov 21, 2009 22:18]


I found the following in Popeye's BEISPIEL directory (stip.inp):

M. Olausson
2971v, Problemkiste 81, 6/1992, (V: PK-83, 10/1992)
(= 1+3+1N )

ser-%4 Circe
b) a4->e8
c) d7->b2
d) d7->f8

a) and c) are cooked. I found the following correction, has anyone else corrected this composition?

(= 1+3+1N )

ser-%4 Circe (
1. f7 2. b8= 3. b2(h8) 4. h8%
1. g7 2. b8= 3. b2(h8) 4. h8%
1. b8= 2. d7(c8) 3. b6 4. c8%
1. b8= 2. d6 3. f8 4. f8%
(Read Only)pid=4374
(2) Posted by Joost de Heer [Tuesday, Feb 5, 2013 23:36]; edited by Joost de Heer [13-02-07]

Not really a correction, but has anyone done 4 rose promotions in promotion-only form more economical than #620 in UiM?

I just found:
(= 5+4 )

= Rose, C+ with Popeye

Which saves two pieces
(Read Only)pid=9733
(3) Posted by Kevin Begley [Wednesday, Feb 6, 2013 00:32]; edited by Kevin Begley [13-02-06]

Such a record may prove easily overcome.
Much depends how you define the specific constraints of this "economical" task -- particularly considering that series-movers do constitute a fairy condition.

For example, Roméo Bédoni showed 6 Rose promotions, in a s#6 with only 10 units, using a pair of fairy conditions.
He also has a problem suggesting that more might be possible, without any fairy condition (simply using a semi-r+2 stipulation -- which can be written such that it requires no condition, while adhering completely to orthodox rules).
(Read Only)pid=9734
(4) Posted by Joost de Heer [Thursday, Feb 7, 2013 08:19]

Updated the post a little bit to address which economy record I'm asking about.
(Read Only)pid=9745

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MatPlus.Net Forum Fairies Corrections