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TMET, chess computer
back to Frank's Chess Page

® Copyright: Frank Quisinsky
Last changes: May 21st, 2018, 17:45

GoTo: A little story, Small link collection, Chess computers, Participants, Conditions / SSDF, Tournament table / downloads, FQ-Test

 

"The Mephisto Expendables Tourney, TMET"
The time machine, 25-35 years later!
"With the knowledge we have today we know many things much better"

TMET started April 15th, 2018

 

With the flag of The Netherlands (Ed Schroeder, Frans Morsch) and the German flag (Mephisto and German programmers).
Assorted colors for different chess computers? Or sets of pieces become confused (pieces felt have the same color)!
Sure, Mephisto Polgar in "pink" and Mephisto Magellan as strongest chess computer in "black".

 


A little story

From October 2017 - April 2018 I collected a group of the older Mephisto chess computers for a tournament.

At this time, I had a lot of contacts to very friendly peoples from chess computer community (most are Germans), examples: Werner Eberl, Andreas Mühlbradt, Eduard Miller, Peter Haupert, Reinhard Sacher, Gerd Klappich, Ruud Martin and much others. Most important my contact to Gerd Klappich. Gerd tuned 13 of 21 of my chess computer, Andreas tuned 3 of 21 and Ruud 1 of 21 for my new idea. I had a lot of fun with Gerd, Eduard and the other I mentioned. From Andreas is the "Display-VOLT" module idea. Carsten Meyer do a lot in questions of tuning and gave the community an immense help.

If you need a person for tunings - with excellent technical understandings and knowledge - please contact me. I will send your request to Gerd if you like.

Frank Quisinsky

I have most interest on Mephisto Modular boards. The Exclusive / München / Bavaria wooden boards needs to many places. The modular board technique is perfect if I have to switched defect parts. Even though they were pioneers 25-35 years ago yet. In this contest it is also important to note the Super Mondial's (Versions: 1a, 1b by Frans Morsch, v2 and Mega IV by Ed Schröder & the Dallas program 68000 XL by Richard Lang). Much more I like the Mephisto laptop series (Modena, Milano Pro / Master Chess, Atlanta by Frans Morsch, Milano / Nigel Short by Ed Schröder and Berlin 68000 / Berlin 68020 by Richard Lang).

Here my Mephisto Exclusive (type 4) with pieces I like and my Mephisto Polgar 10Mhz / OLED module-set.
A very nice board but I say it before ... such boards need to many places. One of such boards is enough.
From the last Exclusive serie by Hegener & Glaser with serial number: 0789502 for board and Polgar module-set.

 

So, I have collected best material to perfect conditions. 1x Exclusive type 4, 1x Mirage type 1, 4x Modular type 2 & 6x Modular type 4 boards. Each of the modules can be run under an own board. The type of Mirage / Modular / Exclusive boards is important in questions of 5 / 6 volt. For an example: Newer modules need a type 4 board (Portorose / Lyon / Vancouver / MMVI / Senator / Magellan and tuned modules often). In additional I collect different Mondials and chess computer from the Laptop series.

Back to Mephisto Modular: Mephisto Modular (German WIKI)
Type 1 (Mirage board) with ~ 6.20 volt, type 2 (Modular board) with ~ 5.80 - 6.00 volt, type 4 (Modular board) with ~ 5.00 volt.

Better as the older original power adapter HGN 5001 or others from Mephisto / Saitek are in my humble opinion:

Hint 1: goobay 59031, 3-12V x 600mA = max. 7.2W, can be used for all modules!
Example: 9V x 600mA = 5,4W
Hint 2: Ansmann APS600, 3-12V x 600mA = max. 7.2W, can be used for all modules!
Hint 3: Leicke NT03091, 9V x 1A (1000mA) = 9W

Hint 4: I am using for pieces 1mm felt (Filz in German) and Olfa Kreisschneider für Kreise von 1-15cm DM (link to Amazon)

Why I do that?
From time to time I have to switch to another part of computer chess, can be an older part. I am buying and selling chess computers since I was 11 years old. More as 80 chess computers I had in my possession 1978 - 1994: My first was a Chess Challenger 7. Now I am 51 years old. I am sure I have a lot of fun to play myself vs. all the older Mephisto chess computer. So, after FEOBOS I started TMET. If I have time for it, new games can be play. Games and tournament table will be public here / on my site, why not?!

Maybe our FEOBOS opening book will be in the future available for a newer chess computer? Sure, that a lot of people will have many funs with all the work around FEOBOS by Klaus Wlotzka and myself in combination with newer and stronger chess computers.

Note:
Of course, my collection of Mephisto chess computers isn't complete! The modules by Richard Lang are very expensive. I have Mephisto Portorose 16bit, tuned to Mephisto Vancouver 16bit and Berlin 68000 with London eprom. This is enough. Mephisto Atlanta is the same as Mephisto Magellan. The differents from Mephisto Berlin 68000 / 68020 to Mephisto Vancouver modules are small. Mephisto produced a lot more chess computers but I am thinking my collected group of chess computers are good enough. Included in TMET, the old Novag Diamond I (WChess 1.03) by David Kittinger. WChess 1.03 is in my opinion the most interesting chess program, included in an older chess computer. I like the black chassis / case much more as the grey chassis for the successors Novag Diamond II, Novag Star Diamond I & II.

TMET started with 14 participants at April 15th, 2018.

 

Ed Schröder, Frans Morsch, Richard Lang, Ulf Rathsman, Thomas Nitsche, Elmar Henne ...
made the Mephisto chess computer fans very happy!

 Ed Schröder get my personal computer chess award!
5 chess computers with programs by Ed are included in TMET!!

Have a look here: http://rebel13.nl/dedicated/overview.html (nice work by Ed himself)

Gerd Klappich, Andreas Mühlbradt, Carsten Meyer for his sensational work & Ruud Martin
"the chief persons in tunings at this time"
get the Chess Award also!

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Small link collection
(to the topic chess computer, not sorted):

Schachcomputer WIKI
Schachcomputer.info
Chess Computer UK
Schaakcomputers
Blitzchess Nostalgie
Steve's Collection (by Steve Blincoe)
Schachcomputer Online-Museum (by Heiko Berger)
Kurt's Schachcomputer Homepage (by Kurt Kispert)
ADINFER-ChessEVAL

Franz Huber's Program Projects (chess computer simulation, really a fantastic work)
Manuals (by Alain Zanchetta)
Ed Schröder
Phoenix Chess Systems (Ruud Martin ... new commercial projects)
blaubaers Forum (Mysticum ... ideas by members of the community)
Chess Computer Corner (forum by Sascha Warnemünde)
Carsten Meyer (very interesting)
Millennium 2000 GmbH (new chess computers, Ossi Weiner).

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Chess computers / Participants

Note:
Click to enlarge on the pics (from 512 x 288 to 1536 x 864)!

 

Mirage Board (type 1) / Modular Board 01 (type 2) / Modular Board 02 (type 2)

Mephisto starts to produce modules around 1983 / 1984!
Programmers of Mirage & MM I modules are Thomas Nitsche & Elmar Henne (Germany)
MM I tuned with HG170 opening eprom.

Gerd Klappich produced a VOLT module for myself (idea by Andreas Mühlbradt).
That's interesting for test power adpaters, modular boards & modules.
I added for each Modular board a pic with and without volt information!

Mephisto Mirage module and Mirage board with the better Modular pieces and a display module.
With Mirage board Mirage, MM I & Rebell 5.0 modules works fine with pressure sensor!

Mirage & MM I are not strong enough for TMET with around 1400 Elo.

 

Modular Board 03 (Type 4)
Participant 01 of 14

One year later in 1985 the module MM II is available.
Programmer of MM II is Ulf Rathsman (Germany)
My MM IIa is tuned with HG240 opening eprom and from 3,7 to 7,4MHz
With Polgar my personal favorite from all of the Mephisto chess computers I have!
Very strong after tuning ... go MM IIa go ...
I have many fun with MM IIa since I have it.

 

In 1986 Rebell 5.0 module and Super Mondial Ib are available!

Modular Board 04 (Type 2)
Participant 02 of 14

Programmer of Rebell 5.0 is Ed Schröder (The Netherlands)
Rebell 5.0 is tuned from 5 to 8,8MHz.
Sometimes tactically danger, good for a surprise during a game.

Programmer of Super Mondial Ib is Frans Morsch (The Netherlands).
Programmer of Mega IV from 1988 is Ed Schröder (The Netherlands).
Super Mondial 1b is tuned from 4 to 10MHz with Mega IV eprom.
Mega IV can be an improved MM IV program!?

 

In 1987 MM IV module and Super Mondial II are available!

Modular Board 05 (Type 4)

Programmer of MM IV is Ed Schröder (The Netherlands)
MM IV tuned with HG440 opening eprom and from 5 to 10MHz.
v7.1 (two versions are available)
Lesser tactic, playing style is designed more positionally.

MM IV will not participant for TMET, I have added enough chess computers by Ed Schröder.

Programmer of Super Mondial II is Ed Schröder (The Netherlands).
Super Mondial II is tuned from 4 to 8MHz.

I think the playing style is comparable with MM IV.

Most interesting for tuning is Super Mondial 1b & Super Mondial 2.
Super Mondial II was available with and without a "Collage" module (positions for chess training)!
Ordinary, Super Mondial II with College module has for each field coordinates on the board.
I changed here the surface.

For the moment I have added enough chess computer by Ed Schröder for TMET tourney.
The Super Mondial's will not participant.

 

In 1989 Roma II and Polgar modules are available!

Modular Board 06 (Type 4)
Participant 03 of 14

Programmer of Roma II is Richard Lang (England)
Roma II tuned from 10 to 20MHz, running on 68000 Motorola processor.
Positionally playing style, often better as the others at this time in endgames.

 

Modular Board 07 (Type 2)
Participant 04 of 14

Programmer of Polgar is Ed Schröder (The Netherlands)
Polgar tuned from 5 to 10MHz with a nice OLED in yellow color.
v1.5 (two versions are available)
A mix from positional and tactically playing style, better in endgames as the other modules by Ed.

With an OLED display in yellow!
Maybe with MM V the most popular Mephisto module.

 

Modular Board 08 (Type 2)
Participant 05 of 14

In the year 1990 the MM V was available.
Programmer of MM V is Ed Schröder (The Netherlands).
MM V tuned with HG550 opening eprom and from 5 to 10MHz.
v5.1 (two versions are available)
Tactical playing style, with Nigel Short (eprom inside Milano) the strongest 8bit chess computer together!?

 

In 1991 Vancouver module and Milano are available!

Modular Board 09 (Type 4)
Participant 06 of 14

Programmer of Vancouver is Richard Lang (England).
My Mephisto Portorose 68000 from 1989 is tuned with Vancouver eprom and an OLED display.
Balanced playing style with a strong endgame.

Around 4.97 volt for type 4!
So I don't need the adapter module for a type 4 Modular board.

 

Participant 07 of 14

Programmer of Milano is Ed Schröder (The Netherlands).
My first Milano is tuned from 5 to 10MHz and has a blue display.
An improved Polgar program?

Here with my wooden board 4 from Spain and nice pieces with king size 60mm for analyzes.
In background a DGT-3000 chess clock. I like more the good and old mechanic chess clocks.

 

Participant 08 of 14

In the year 1992 the Modena was available.
Programmer of Modena is Frans Morsch (The Netherlands).
Modena is tuned from 4 to 8,4MHz.
Years before, the same program was available in CXG Sphinx Dominator.
Tactical playing style with problems in endgames.

An underestimated chess computer.

The same figures as the original but in wooden color from a Fidelity chess computer!

 

Participant 10 of 14 (Nigel Short)

In the year 1993 the Nigel Short version for Milano was available.
Programmer of Milano / Nigel Short is Ed Schröder (The Netherlands).
My second Milano is tuned with Nigel Short eprom, from 5 to 10MHz and has a yellow display.
The Nigel Short program is a good mix between MM V and Polgar in playing style.
The last and maybe the most interesting 8bit program by Ed Schröder!

With a display in yellow and the same pieces as the original but in white from Peri (1959-2004).
I found my Peri boards after a long search over months in ebay.
Without magnets such pieces are available in "CTC Travellers Club Collection" also!

 

Participant 09 of 14

My personal most popular chess computer is from Novag.
The Novag Diamond I by David Kittinger (USA).
I have a Novag Diamond I with 20Mhz, in 1995 Novag produced a Diamond I with 26,6Mhz.
First time available in the year 1994 with the faboulus WChess 1.03 program.

Novag pieces are terrible. Here with Mephisto Modular pieces!

 

Participant 11 of 14

In the year 1996 the Milano Pro was available.
Programmer of Milano Pro is Frans Morsch (The Netherlands).
My Milano Pro is tuned from 20 to 28,4MHz.

The Milano Pro has the same program as Senator (without RAM for hash).
Atlanta (Laptop series) and Magellan module are the more expensive chess computers (with RAM for Hash).
It can be interesting to have both in my tournament (Milano Pro without RAM and a Magellan with RAM).
Please have a look in my further comments to the next participant Magellan.

Silver figures comes from Mephisto Milano!
Black shiny figures comes from "unknown" ... maybe a Fidelity chess computer?

 

Modular Board 11 (Type 4)
Participant 12 of 14

And the chess computer community are waiting many years for a new module.
In 1998 Saitek released three different new modules (MM VI / Senator / Magellan).
Programmer of these modules are Frans Morsch (The Netherlands)

In my opinion is Magellan / Atlanta the most interesting older chess computer together with Novag Diamond series & Mach III / Mach IV!
The Magellan produced from human perception a fantastic aggressive style of chess.

The Modular board for Mephisto Magellan have a black border, it's rarely!


Ruud Martin tuned my Senator with a 512kB memory ... so a Magellan was born!

 

Participant 13 of 14

Millennium released in 2015 Chess Genius and in 2016 Chess Genius Pro.
Programmer is Richard Lang (England).
Chess Genius is running with an ARM Cortex M4 with 48MHz, Chess Genius Pro with an ARM Cortex with 120MHz.

I dislike the display and pieces and changed that.
For my tourney I will used Chess Genius only because Chess Genius Pro is to strong for TMET.
So many years later I await a better quality. But the price is fully OK and yes ... I like it!

Figures comes from Mephisto Modena!

 

Participant 14 of 14
Frank Quisinsky (I have interest to play).

I am playing on my wooden boards 1 & 2 vs. all the chess computers.
I have more fun with original Garde Ruhla clocks in comparing to my DGT3000 chess clock.
Here two Ruhla clocks from 1981 and 1987 made in GDR!
On the left site a chess board from Spain with DGT Polgar pieces (king size 95mm).
On the right site chess board and pieces from India (king size 90mm).

Chess boards & pieces are from my chess dealer: Schach Niggemann

     

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Conditions, SSDF

endless tourney, each one against each other.
time control will be ~ 1 minute per move.
for the moment 4 games for each match constellation.

SSDF start, SSDF full list (computer chess ratings)

Note: The list of participants for TMET in blue.
Note: Most of my chess computer runs with more MHz!

SSDF from January 20th, 2018
I am thinking that SSDF is currently (January, 2018) 25 Elo to high!

231. Millenium ChessGenius Pro ARM M4 120MHz   2184   92   -72    100   76%  1990
256. Atlanta SH7000 20MHz                      2087   27   -26    747   66%  1969 (Magellan)
257. Millenium ChessGenius ARM M4 48MHz        2086   57   -53    169   62%  2001
269. Mephisto Vancouver 68000 12MHz            2005   20   -20   1159   54%  1979
272. Novag Sapphire H8 20MHz                   1992   21   -21   1074   46%  2017
(comparable to Diamond I)
275. Milano Pro SH7000 20MHz                   1975   30   -29    547   58%  1922
(28,4MHz)
278. Mephisto Nigel Short 6502 5MHz            1955   52   -52    177   51%  1951 (10MHz)
280. Mephisto Polgar 6502 10MHz                1944   42   -41    283   59%  1882
297. Mephisto MM V 6502 5MHz                   1878   18   -18   1396   46%  1904 (10MHz)
299. Mephisto Polgar 6502 5MHz                 1873   16   -16   1838   40%  1941
301. Mephisto Roma 68000 12MHz                 1872   18   -18   1519   56%  1831 (20MHz)
302. Mephisto Milano 6502 5MHz                 1869   22   -23    970   40%  1943 (10MHz)
313. Mephisto Mega IV 6502 4,9MHz              1818   17   -17   1635   43%  1868
315. Mephisto MM IV 6502 5MHz                  1807   19   -19   1314   49%  1813
316. Mephisto Modena 6502 4MHz                 1801   27   -28    655   40%  1871 (8,4MHz)
326. Mephisto Mega IV 6502 4,9MHz Brute Force  1753   34   -35    422   38%  1842
330. Mephisto Rebell 6502 5MHz                 1728   19   -19   1391   38%  1813 (8,8MHz)
331. Mephisto Super Mondial 6502 4MHz          1725   18   -19   1475   35%  1831
342. Mephisto MM II 6502 3,7MHz                1677   48   -47    208   52%  1660 (7,4MHz)

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Tournament table / games

Programs by: 5x Ed Schröder, 3x Frans Morsch, 3x Richard Lang, 1x Ulf Rathsman, 1x David Kittinger
Human player: Frank Quisinsky

Round 01 - 13

Participants (14), Ø = 1.941 Elo MM IIa Rebell Roma Polgar MM V Vanc. Milan Modena Dia. Nigel Milan P. Mag. Genius F. Qy. ~ Elo *1 Level, info Points
01. 1985 Mephisto MM IIa, 7,4MHz, HG240 *4 X 11½1                       0½00 1750 LE 5 4,0
02. 1986 Mephisto Rebell 5.0, 8,8MHz *3 00½0 X                     0000   1750 LE 4 0,5
03. 1989 Mephisto Roma II, 20MHz *3     X                 ½½01 0000   1900 LE 45 2,0
04. 1989 Mephisto Polgar, 10MHz *3       X             0½½½       1925  1 min. 1,5
05. 1990 Mephisto MM V, 10MHz, HG550 *3         X         0½0½         1950 LE 4 1,0
06. 1991 Mephisto Vancouver 68000 *3           X                 1975 Normal 05  
07. 1991 Mephisto Milano, 10MHz *3             X 11½1             1925 1 min. 3,5
08. 1992 Mephisto Modena, 8,4MHz *3             00½0 X             1850 LE 4 0,5
09. 1994 Novag Diamond, 20MHz                 X           1975    
10. 1993 Mephisto Nigel Short, 10MHz *4         1½1½         X         2000 1 min. 3,0
11. 1996 Mephisto Milano Pro, 28,4MHz *3       1½½½             X       1975 LE B2, PS:0 2,5
12. 1998 Mephisto Magellan *5     ½½10                 X     2050 LE B2 2,0
13. 2015 Millennium Chess Genius, 48MHz   1111 1111                   X   2050 ECO=off 8,0
14. 1967 Frank Quisinsky *2 1½11                         X 2100 1 min. 3,5

On the bench:
Maybe I added different of these chess computer later in the tournament!


01.
1983 Mephisto MMI, HG170 *3 (1400 Elo)
02.
1984 Mephisto Mirage
(1400 Elo)
03. 1986 Mephisto Super Mondial 1b (tuned with Mega IV eprom from 1988), 10MHz  *3 (1875 Elo)
04. 1987 Mephisto MM IV, 10MHz, HG440
*3 (1875 Elo)
05. 1988 Mephisto Super Mondial II, 8MHz *3 (1875 Elo)
06. 1992 Mephisto Berlin 68000 (London update), 12MHz
*4 (1975 Elo)
07. 2016 Millennium Chess Genius Pro, 120MHz (2150 Elo)

*1 Elo calculation set by my own experience & knowledge in addition to the currently SSDF rating list.
*2 Own Elo is unclear. After results vs. chess players from different chess clubs I should have around 2100 Elo but at last for over 10 years.
*3 Tuned by Gerd Klappich.
*4 Tuned by Andreas Mühlbradt.
*5 Tuned by Ruud Martin.



Last update (downloads): May 11th, 2018 (09:45)

tmet_32-of-364.zip (0,026Mb), games in *.pgn / *.cbh with comments to my own games (32 of 364 games included)
tmet_v7.6-with-analysis.zip (1,928Mb) Excel workbook by Klaus Wlotzka with Chessbase game & tactic analyses in *.cbh (28 of 364 games included)
tmet_fq-test_v1.2.zip (0,215Mb), 8 test-positions

 

FQ-Test v1.0 (8 test-positions) ...
It can be interesting to compare tuned chess computers with non tuned chess computers with simple mate problems!

Goto:
Pos. 1, Pos. 2, Pos. 3, Pos. 4, Pos. 5, Pos. 6, Pos. 7, Pos. 8

Conditions:
- max. time for analyses per position = 02:30:00
- not found = + 03:00:00 for summary time calculation

 (18, without MM I / Mirage) Pos. 1 Pos. 2 Pos. 3 *1 Pos. 4 Pos. 5 Pos. 6 Pos. 7 Pos. 8 Level Solved Time Place
01. 1985 Mephisto MM IIa, 7,4MHz, HG240 00:08:27 00:00:31 00:02:10 00:07:15 00:08:31 00:17:54 00:00:53 01:33:30 LE 10 8 02:19:11 06.
02. 1986 Mephisto Rebell 5.0, 8,8MHz 02:04:09 00:00:56 00:00:09 00:17:52 00:02:40 03:00:00 03:00:00 03:00:00 LE 9 5 11:25:46 14.
03. 1987 Mephisto MM IV, 10MHz, HG440 01:49:50 00:05:08 00:00:11 00:18:43 00:02:09 03:00:00 00:03:54 03:00:00 LE 9 6 08:19:55 12.
04. 1988 Mephisto Mega IV, 10MHz follow later                     15.
05. 1989 Mephisto Super Mondial II, 8MHz 03:00:00 00:05:21 00:00:08 00:06:05 00:02:08 03:00:00 03:00:00 03:00:00 LE 8 4 12:13:42 14.
06. 1989 Mephisto Roma II, 20MHz 00:08:10 00:01:14 00:00:11 00:13:26 00:06:45 00:01:03 00:00:11 03:00:00 LE 99 7 03:31:00 09.
07. 1989 Mephisto Polgar, 10MHz 03:00:00 00:06:38 00:00:05 00:00:47 00:01:09 00:05:10 00:01:07 03:00:00 Analyse 6 06:14:56 11.
08. 1990 Mephisto MM V, 10MHz, HG550 00:04:26 00:06:10 00:00:10 00:02:24 00:02:47 00:05:40 00:17:56 00:39:20 LE 9 8 01:18:53 04.
09. 1991 Mephisto Milano, 10MHz 00:04:27 00:06:42 00:00:03 00:00:34 00:02:05 00:00:46 00:36:33 00:47:32 Analyse 8 01:38:42 05.
10. 1991 Mephisto Vancouver 68000 00:01:24 00:00:01 00:00:08 00:00:35 00:00:31 00:00:07 00:00:03 00:04:44 Dauer 8 00:07:33 02.
11. 1992 Mephisto Modena, 8,4MHz follow later   03:00:00 *3           LE 8     15.
12. 1992 Mephisto Berlin / London 68000 follow later               Dauer     15.
13. 1993 Mephisto Nigel Short, 10MHz 00:04:24 01:00:30 00:00:03 00:01:55 00:01:06 00:02:03 00:00:20 03:00:00 Analyse 7 04:10:21 10.
14. 1994 Novag Diamond I, 20MHz follow later                     15.
15. 1996 Mephisto Milano Pro, 28,4MHz 00:00:07 00:00:17 03:00:00 *3 00:00:17 00:01:54 00:00:13 00:00:13 00:03:56 LE e8 7 03:06:57 07.
16. 1998 Mephisto Magellan, 20MHz 00:02:02 00:01:07 03:00:00 *3 00:00:13 00:00:02 00:00:12 00:00:11 00:11:44 LE e8 7 03:15:31 08.
17. 2015 Mill. Chess Genius, 48MHz *2 00:13:01 00:00:07 00:00:01 00:00:09 00:00:33 00:00:17 00:00:01 00:02:32 Analyse 8 00:16:41 03.
18. 2016 Mill. Chess Genius Pro., 120MHz *2 00:03:23 *6 00:00:03 00:00:01 00:00:03 00:00:13 00:00:05 00:00:01 00:00:33 Analyse 8 00:04:22 01.

*1 = In 98% of the cases pawns are promoted to queens. Sometimes though, it would be better to promote to something else other than a queen, like in the example Pos. 3!
*2 = Mill. Chess Genius / Genius Pro aren't easy to test. The clock is still running after mate found. Computer doesn't abort the analyses. Solving time can vary with 1-2 seconds!
*3 = No underpromotion!

No underpromotion for chess computers by Frans Morsch.
I believe the Saitek GK-2100 only have no problems with the underpromotion.
Modular queen's, rook's, bishop's, & knight's fall into a deep sleep.

 

Pos. 1: Mate in 4, 40. ... Rd8
8/p4pk1/BP2p3/4PnK1/1P1r1P1r/7P/7R/1R6 b - - 0 40
Own source: FCP Rating List,  Hannibal 1.5 x64 - Naum 4.6 x64, 0:1, D31, March 15th, 2015

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Pos. 2: Mate in 4, 34. ... Rdg4
8/p4p1k/2p3pp/2p1p3/N1Pr3r/1P4Rq/P1Q1PP1n/1R5K b - - 0 34
Own Source: FCP Rating List,  Laser 1.1 POP x64 - Junior 13.3.00 x64, 0:1, E64, May 14th, 2016

 

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Pos. 3: Mate in 5, 28. gxf7+
r5k1/p4p2/2p2BPb/3pR1Qp/6bP/2N5/PPPK4/5q2 w - - 0 28
Own source: FCP Rating List,  Chiron 2.0 x64 - Deuterium 14.2.33.276 x64, 1:0, B71, June 25th, 2014

 

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Pos. 4: Mate in 5, 26. ... Qg5+
5rk1/4qp1p/1p1Np1pP/p3P3/2rP4/n1p3Q1/2P2PP1/2KRR3 b - - 0 26
Own source: FCP Rating List,  Nirvanachess 1.7 x64 - Texel 1.04 x64, 0:1, C16, August 18th, 2014 

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Pos. 5: Mate in 5, 24. Bg6
3r1k2/1r2b1pQ/p3pp1p/q2nB3/bp2BP2/1P6/P1P3PP/1K1R1R2 w - - 0 24
Own source: FCP Rating List,  Critter 1.6a x64 - Tornado 5.0 SSE4 x64, 1:0, B66, February 20th, 2016 

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Pos. 6: Mate in 5, 33. Bf6+
1rr1q1k1/2n1bp1p/2n1p3/1p1pP1Bp/pP4R1/P1P2N1P/2Q2PP1/2R3K1 w - - 0 33
Own source: FCP Rating List,  Komodo TCECr x64 - Nirvanachess 1.6 x64, 1:0, C02, June 02nd, 2014

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Pos. 7: Mate in 4, 26. ... Nf3+
r5rb/p6k/1p5p/B1pNpp2/B2n2bq/P2P2N1/2P2PP1/1R2QRK1 b - - 0 26
Own source: FCP Rating List,  Chiron 3 x64 - Stockfish 18Sep.2016 BMI2 x64, 0:1, B31, September 25th, 2016

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Pos. 8: Mate in 6, 37. ... Bg2
6k1/4b1p1/p1R1P1pr/2BpR3/BP3p1r/P4P1b/5P2/6K1 b - - 0 37
Own source: FCP Rating List,  Hannibal 1.7 x64 - Naum 4.6 x64, 0:1, C95, September 07th, 2016

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