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Ilkka Blom, Salmikatu 27 A 16, FIN-65200 Vaasa, FINLAND (iblom@walli.uwasa.fi)


Äänekoski ("summer town") 29.8.1998

Dear Chessfriend,

I have now tested over 1000 problems in Fide Album 1989-91
using Alybadix and P150/128 MB machine. Several errors found:

C106    Sacharov         19#
Cooked (17#,19#)
Dc8! / De8! Df6+!
 
F078    Sphicas         s17#
Cooked (15#,16#)
e8D+! f8D+! g8D+ / e8T+

F084    Mintz           s44#
Dual:
31.Tb1-f1

G023    Wenda & Rehm     r8#
No solution (100% test):
.... 5.Sd2+ Kc2! 6.Se4+ Kxd3! 7.Td2/Th3#

G057    Gandew          s14# circe
Cooked (8#,9#,10#,11#,12#)
a8D+! / Dd3+! / De5+! Df4+! / ...

G059    Gandew          s38# circe
Cooked (23#)
1.Dd4+ Ke2 2.Lb5+! ...

G117    Rehm             13#
Diagram correction: +bSa7, Pg7->f7, but wrong solution:
.... 5.Vaof6+ Vaod8! 6.Vaoe7+ Paoxe8!

G131    Dupin & Kerhuel  h2#
Stipulation correction:
b) +bPb3
c) +bLocust e4
1.1.1.1.


In addition Petko Petkov's s#14 (F76) seems to be cooked.
Below is the aimed solution (Selfbadix):

Petko Petkov
The Problemist 1989, 2. Pr.
Fide Album 1989-91/F76
Machine 486/66, 32 MB

White:  Kf3 Dg7 Tc8 Te2 Le4 Lf2 Pb3 Pd3 Pe5 Pe6
Black:  Kh1 La5 La6 Pb4 Pb5 Pe7
 S#14                 (10+6)

14#
 1.Kf3-f4+ Kh1-h2    2.Lf2-b6+ Kh2-h3    3.Dg7-g2+ Kh3-h4
 4.Dg2-g5+ Kh4-h3    5.Le4-g2+ Kh3-h2    6.Lg2-b7+ Kh2-h3
 7.Te2-e3+ Kh3-h2    8.Dg5-h4+ Kh2-g1    9.Dh4-e1+ Kg1-h2
10.De1-d2+ Kh2-g1   11.Te3-g3+ Kg1-f1   12.Tc8-f8  La5xb6
13.Kf4-e4+ Lb6-f2   14.Ke4-d5  La6xb7 #
                                                   La6xb7
13.Kf4-e3+ Lb7-f3   14.Ke3-d4  La5xb6 #

Time(h:m:s): 00:24:21,62
Search Depth (Plies): Max
2 variations (1/2)
Moves(All/W/B): 10598543/9952304/646239
TEST: No-Try/No Setplay/All variations
      /wC-/f1/y2/Tree 5-7-1800055 (30 MB)
Selfbadix-4 /Printbadix

However, the problem was cooked already in 1994.
"Suomen Tehtäväniekat" 1994/4 wrote:

"The finnish Solving Championship Finals were solved from June 23 to
August 8, 1994. Problems were selected by Pauli Perkonoja and Jorma
Paavilainen and they were not easy (pages 116-117). Surprisingly,
problem no 11 (P. Petkov, 2. pr. the Problemist 1989) is likely to have
been cooked by Paavo Jouppila and the new champion Juha Saukkola."

Below is one cook variation:

 1.Tc1+ Kh2 2.Ta2! Ld8 3.Txa6 Kh3 4.Ta8 La5
 5.Txa5 Kh2 6.Ke3 Kh3 7.Kd4 Kh2 8.Ld5 Kh3
 9.Ta8 Kh2 10.Tc5 Kh3 11.Dh6+ Kg4
12.Tg8+ Kf5 13.Df6+ exf6 14.Le3 fxe5# 

Selfbadix should find the solution using option y6, but solving
time may be too long! 


Error list of all Fide albums freely available via Internet.

===============================================================

SOLVING SPEED TEST      Group email May 1998
------------------

Dear Chessfriend,

The aim of this test is to compare Alybadix solving
speeds on different processors.

Please test on your own machine and send solving times
(also times of other solving programs are welcome).

Check that the total moves done are the same.
Fide notation in all.

Problems:

1.
Ilkka Saren, STN 1992
White:  Ka8 Lc5 (2)
Black:  Kc8 Pg5 Ph5 (3)
Helpmate in 7 (h#7)

Solving program: Helpbadix Intelligent.
Tree size: 0 MB
Total moves: 2659055

2.
M. Crucioli, 1974
White:  Ka1 Ld4 Pa3 Pe5 (4)
Black:  Kb3 Lb1 Pc5 Pe6 (4)
Helpmate in 5 (h#5)

a) Solving program: Helpbadix Intelligent
Tree size 0 MB
Total moves: 16433212

b)
Solving program: Helpbadix
Tree size 30 MB
Total moves: 1415208

c)
Solving program: Helpbadix C
Tree size 30 MB
Total moves: 579893

3.
M. Olausson, Springaren 1996/64/8343
Neutr:  Ka8 Pa2 Pa3 Pb6 Pc5 (0+0+5)
Helpmate in 5 (h#5)
Cooked! (47 variations)
Solving program: Fairybadix/Helpbadix
Tree size 30 MB
Total moves: 4391208
----------------------------------------------

Testing results (August 1998):

        Solving times in seconds/speed
Proces- Freq.   factor compared with 486, 66 MHz
sor MHz 1        2a       2b       2c       3
        -------  -------  -------  -------  -------
486 66   111/1   622/1    229/1    92/1     1611/1  (Blom)

486 60    95/1.2 521/1.2  178/1.3  75/1.2   1572/1  (14 MB)
P   75
P   90  66.0/1.7 359/1.7  115/2.0  46.2/2.0 856/1.9 (14 MB)
P   100 53.7/2.1 312/2.0                (WinNT)
P   125 57.1/1.9 313/2.0  92.0/2.5 38.3/2.4         
P       133 42.6/2.7 232/2.7  74.9/3.1 30.4/3.0 497/3.2
P       133 56.5/2.0 325/1.9  88.0/2.6 37.0/2.5 611/2.6
P   133 36.6/3.0 205/3.0                (Win95)
P   150 34.1/3.3 189/3.3  65.0/3.5 26.2/3.5 452/3.6 (Blom, 14 MB)
P MMX?  166                     389/4.1 
P MMX   166 21.6/5.1 125/5.0  49.2/4.7 20.1/4.6 333/4.8 
P MMX   166 21.6/5.1 124/5.0  47.4/4.8 19.5/4.7 331/4.9 
C 6x86  200 25.8/4.3 147/4.3  51.9/4.4 21.2/4.3     
K 6 200 20.9/5.3 122/5.1  39.9/5.7 18.2/5.1 271/5.9 
P Pro   200 25.6/4.3 144/4.3  49.0/4.7 20.3/4.5     (97)
P   200 29.3/3.8 168/3.7  49.7/4.6 20.4/4.5         (97)
P   200 26.3/4.2 145/4.3  49.7/4.6 20.4/4.5         (98)
P   200 27.2/4.1
P MMX   200 18.3/6.1 106/5.9  39.9/5.7 16.6/5.5 278/5.8 
P MMX   233
P II    266 18.7/5.9 107/5.8  37.0/6.2 15.3/6.0     (W95B,97)
P II    266 18.8/5.9 110/5.7  36.5/6.3 15.4/6.0         (W95B,98)
P II    266 20.0/5.6 120/5.2                            (WNT, 98)
P II    300 16.5/6.7  96/6.5  31.2/7.3 17.6/5.2 213/7.6 (DOS)
P II    300 32.5/3.4  98/6.3                (WinNT)
P II    333     15.0/7.4  87/7.1  30.1/7.3 12.5/7.4         (97)
P II    333 15.0/7.4  88/7.1  28.8/8.0 12.1/7.6 196/8.2 (98)
P II    400 12.7/8.7  76/8.2  24.4/9.4 10.4/8.8 158/10.2

P = Pentium
C = Cyrix
K = AMD