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Mclane

Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyTue Aug 31, 2021 11:08 pm

The sensation has happened.

The unknown Clockchess89 by Chris Whittington beats the Tiger Grenadier and climbs up in the tournament , has 5/7 together with Steinitz and leads the tournament so far.

Wow.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.08.29"]
[Round "7"]
[White "ClockChess89 Spectrum 300%"]
[Black "Tiger Grenadier"]
[ECO "C20"]
[Result "1-0"]

1. e4 e5 2. Ne2 Nc6 {"} 3. Nec3 {"} Bc5 4. Na4 Be7 5. Nbc3
Nf6 6. Bb5 a6 7. Bxc6 dxc6 8. b3 b5 9. Nb2 b4 10. Ne2 Nxe4
11. d3 Nc3 12. Nxc3 bxc3 13. Nc4 Bc5 14. Nxe5 O-O 15. O-O
Qd5 16. Nc4 Bf5 17. Bf4 Rac8 18. Re1 Bd4 19. Qh5 Be6
20. Qh4 c5 21. Rad1 c6 22. Re4 Rce8 23. Rde1 Bd7 24. Nb6
Rxe4 25. Rxe4 Qf5 26. Be3 Bxe3 27. Rxe3 Qg4 28. Qxg4 Bxg4
29. f3 Be6 30. Na4 c4 31. bxc4 Rb8 32. Re5 Rb1+ 33. Kf2 Rb4
34. Ra5 Bc8 35. Kg3 f5 36. Nxc3 Rb2 37. Ne2 g5 38. Nd4 f4+
39. Kf2 h6 40. Rc5 Bb7 41. a4 Kf8 42. g3 Kg8 43. gxf4 gxf4
44. a5 Kg7 45. Ke2 Kf8 46. Kd2 Ke7 47. Kc3 Ra2 48. Rh5 Kd7
49. Nb3 Bc8 50. Rxh6 Kd8 51. Rxc6 Bb7 52. Rf6 Bxf3 53. Rxf4
Bd1 54. Rf2 Kd7 55. d4 Ke7 56. h4 Ra4 57. Kd3 Ra2 58. Rd2
Bg4 59. Ke4 Ra4 60. Kd3 Ra2 61. Rf2 Bd1 62. Rg2 Rb2 63. Nc5
Ra2 64. Nxa6 Rxa5 65. Nc7 Ra3+ 66. c3 Bf3 67. Rf2 Bc6
68. d5 Bd7 69. c5 Ba4 70. Kd4 Bb3 71. Ke5 Bc4 72. c6 Ra5
73. h5 Ba2 74. h6 Bb1 75. Rg2 Bh7 76. Rg7+ Kd8 77. Rxh7 Kc8
78. Kd6 Kb8 79. Rh8+ Ka7 80. Ra8+ Kb6 81. Rb8+ Ka7 82. Rb7#
1-0
[/pgn]

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Mclane

Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyTue Aug 31, 2021 11:13 pm

Schachcompus

PlatzMotorPunkteClChFiGMTiMeScCoNoMeReExTAScS-B
01Clock Chess 89 ZX Spectrum 10 mhz (300%) {Brettcomputer}5,0/7·=  1  =  0111 13,25 
02Chafitz Steinitz encore {Brettcomputer} 5,0/7=·0    1 1 =11 13,00 
03Fidelity Elite A/S Glasgow 5mhz {Brettcomputer} 4,5/7 1·10 1= 0   1 16,25 
04GM Petrosian Glasgow 25 mhz {Brettcomputer} 4,5/7  0·110  1 =1  13,50 
05Tiger Grenadier {Brettcomputer} 4,0/70 10· 1 0  11  11,50 
06Mephisto MM2 HG240 {Brettcomputer} 4,0/7   0 ·0=1 1 1= 10,00 
07SciSys Superstar 36K oc {Brettcomputer} 3,5/6  0101· = 1    12,75 
08Colossus Chess 4.0 C64 5mhz {Brettcomputer} 3,5/7=0=  = ·   101 10,25 
09Novag Super-Constellation {Brettcomputer} 3,5/6    10= ·01  1 9,75 
10Mephisto Mondial II {Brettcomputer} 3,0/7 010    1·=0=  10,00 
11Rebell Mystery Modul {Brettcomputer} 2,5/71    00 0=·1 0 8,50 
12Excalibur Einstein Chess wizard {Brettcomputer} 2,0/70= =0  0 10·   7,75 
13TASC Final Chess Card {Brettcomputer} 1,5/700 000 1 =  ·  5,00 
14Schneider Titan 16 mhz {Brettcomputer} 1,5/7000  = 00 1  · 4,50 


48 Partien von 91 gespielt

Beginn des Turniers: 2021.08.18, 14:37:29
Letzte Aktualisierung: 2021.08.18, 14:38:09
Ort/ Land: ORION8, Deutschland
Spielstufe: Turnier 40/120 20/60
Hardware: Dual Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz mit 1.016 MB Speicher
Betriebssystem: Microsoft Windows XP 64 Bit Professional Service Pack 2 (Build 3790)
PGN-Datei: Schachcompus.pgn
Tabelle erstellt mit: Arena 1.99beta4
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TheSelfImprover

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyTue Aug 31, 2021 11:54 pm

Mclane wrote:
The sensation has happened.

The unknown Clockchess89 by Chris Whittington beats the Tiger Grenadier and climbs up in the tournament , has 5/7 together with Steinitz and leads the tournament so far.

Wow.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.08.29"]
[Round "7"]
[White "ClockChess89 Spectrum 300%"]
[Black "Tiger Grenadier"]
[ECO "C20"]
[Result "1-0"]

1. e4 e5 2. Ne2 Nc6 {"} 3. Nec3 {"} Bc5 4. Na4 Be7 5. Nbc3
Nf6 6. Bb5 a6 7. Bxc6 dxc6 8. b3 b5 9. Nb2 b4 10. Ne2 Nxe4
11. d3 Nc3 12. Nxc3 bxc3 13. Nc4 Bc5 14. Nxe5 O-O 15. O-O
Qd5 16. Nc4 Bf5 17. Bf4 Rac8 18. Re1 Bd4 19. Qh5 Be6
20. Qh4 c5 21. Rad1 c6 22. Re4 Rce8 23. Rde1 Bd7 24. Nb6
Rxe4 25. Rxe4 Qf5 26. Be3 Bxe3 27. Rxe3 Qg4 28. Qxg4 Bxg4
29. f3 Be6 30. Na4 c4 31. bxc4 Rb8 32. Re5 Rb1+ 33. Kf2 Rb4
34. Ra5 Bc8 35. Kg3 f5 36. Nxc3 Rb2 37. Ne2 g5 38. Nd4 f4+
39. Kf2 h6 40. Rc5 Bb7 41. a4 Kf8 42. g3 Kg8 43. gxf4 gxf4
44. a5 Kg7 45. Ke2 Kf8 46. Kd2 Ke7 47. Kc3 Ra2 48. Rh5 Kd7
49. Nb3 Bc8 50. Rxh6 Kd8 51. Rxc6 Bb7 52. Rf6 Bxf3 53. Rxf4
Bd1 54. Rf2 Kd7 55. d4 Ke7 56. h4 Ra4 57. Kd3 Ra2 58. Rd2
Bg4 59. Ke4 Ra4 60. Kd3 Ra2 61. Rf2 Bd1 62. Rg2 Rb2 63. Nc5
Ra2 64. Nxa6 Rxa5 65. Nc7 Ra3+ 66. c3 Bf3 67. Rf2 Bc6
68. d5 Bd7 69. c5 Ba4 70. Kd4 Bb3 71. Ke5 Bc4 72. c6 Ra5
73. h5 Ba2 74. h6 Bb1 75. Rg2 Bh7 76. Rg7+ Kd8 77. Rxh7 Kc8
78. Kd6 Kb8 79. Rh8+ Ka7 80. Ra8+ Kb6 81. Rb8+ Ka7 82. Rb7#
1-0
[/pgn]


Once again, it seems to have a certain cleverness about it. It looks as though Chris had some success in getting this 8-bit program to play the way he wanted it to play. Did he release any other programs after Clock Chess but before his masterpiece, CS-Tal?
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Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 12:09 am

This was all before i met chris. I had a zx spectrum. I even had a chess cassette tape with one of his programs, but i had only the 16 K spectrum and i guess i had the wrong program.

Then i changed to cpc464 and i came to chris later when i had the atari ST. There i saw the engine was interesting and i contacted him.

But i oversaw the 8Bit engines he did. When i first got superchess3.5 on a spectrum emulator i was surprised how typical chris alike it was.
Detailed information how it is working is written in the help text of Superchess 3.5.
I chose clockchess89 because i think superchess has no permanent brain while clockchess has. I have no clue if superchess3.5 is weaker or if clockchess89 is a superchess3.5 with permanent brain.

The next thing was to give colossus chess and clockchess similar spped like the dedicated chess computers have.

Therefore i put colossus chess4 to 5 mhz and clockchess89 from 3.5 to 10 mhz.
This way the software engines are competitive to the dedicated chess computers.

He released of course many engines on atari ST and PC before CSTal appeared. That was his main job to produce several chess engines and generate money.

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Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 9:37 pm

Superconny won against Superstar36K.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.08.31"]
[Round "7"]
[White "SciSys Superstar36K oc"]
[Black "Novag Superconstellation"]
[ECO "C43"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Be7 6. Qf3
{"} Nf6 {"} 7. O-O O-O 8. Bf4 c5 9. dxc5 Bxc5 10. Nd2 Nc6
11. Nxc6 bxc6 12. Nb3 Bd6 13. Bg5 Be5 14. c3 h6 15. Bxf6
Bxf6 16. Rfe1 Qb6 17. Bc2 Qb5 18. a4 Qc4 19. Na5 Qa6 20. b4
Be6 21. Rad1 Rfe8 22. h3 c5 23. Bd3 c4 24. Bf5 Bxf5
25. Qxf5 Bxc3 26. Re3 Bxb4 27. Rxd5 g6 28. Rg3 Kf8 29. Qd7
Bxa5 30. Re3 Rxe3 31. fxe3 Rd8 32. Qb5 Qxb5 33. Rxb5 Bb6
34. Kf2 Rd3 35. a5 Bxe3+ 36. Ke2 Kg7 37. Rb4 Rc3 0-1
[/pgn]

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Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 9:44 pm

tournament after 7 rounds:

Schachcompus

PlatzMotorPunkteClChFiGMNoTiMeScCoMeReExTAScS-B
01Clock Chess 89 ZX Spectrum 10 mhz (300%) {Brettcomputer}5,0/7· ·=   1  = 0111 13,25 
02Chafitz Steinitz encore {Brettcomputer} 5,0/7=· ·0     11 =11 13,00 
03Fidelity Elite A/S Glasgow 5mhz {Brettcomputer} 4,5/7 1· ·1 0 1=0   1 16,25 
04GM Petrosian Glasgow 25 mhz {Brettcomputer} 4,5/7  0· · 110 1 =1  13,50 
05Novag Super-Constellation {Brettcomputer} 4,5/7    · ·10=1 01  1 13,25 
06Tiger Grenadier {Brettcomputer} 4,0/70 100· · 1   11  11,50 
07Mephisto MM2 HG240 {Brettcomputer} 4,0/7   01 · ·0= 1 1= 11,00 
08SciSys Superstar 36K oc {Brettcomputer} 3,5/7  01=001· ·  1    13,25 
09Colossus Chess 4.0 C64 5mhz {Brettcomputer} 3,5/7=0=   = · ·  101 10,25 
10Mephisto Mondial II {Brettcomputer} 3,0/7 0101    · ·=0=  11,00 
11Rebell Mystery Modul {Brettcomputer} 2,5/71   0 00 =· ·1 0 8,50 
12Excalibur Einstein Chess wizard {Brettcomputer} 2,0/70= = 0  010· ·   7,75 
13TASC Final Chess Card {Brettcomputer} 1,5/700 0 00 1=  · ·  5,00 
14Schneider Titan 16 mhz {Brettcomputer} 1,5/7000 0 = 0 1  · · 4,50 


49 Partien von 91 gespielt

Beginn des Turniers: 2021.08.18, 14:37:29
Letzte Aktualisierung: 2021.08.18, 14:38:09
Ort/ Land: ORION8, Deutschland
Spielstufe: Turnier 40/120 20/60
Hardware: Dual Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz mit 1.016 MB Speicher
Betriebssystem: Microsoft Windows XP 64 Bit Professional Service Pack 2 (Build 3790)
PGN-Datei: Schachcompus.pgn
Tabelle erstellt mit: Arena 1.99beta4
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TheSelfImprover

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 10:15 pm

Mclane wrote:
Superconny won against Superstar36K.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.08.31"]
[Round "7"]
[White "SciSys Superstar36K oc"]
[Black "Novag Superconstellation"]
[ECO "C43"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Be7 6. Qf3
{"} Nf6 {"} 7. O-O O-O 8. Bf4 c5 9. dxc5 Bxc5 10. Nd2 Nc6
11. Nxc6 bxc6 12. Nb3 Bd6 13. Bg5 Be5 14. c3 h6 15. Bxf6
Bxf6 16. Rfe1 Qb6 17. Bc2 Qb5 18. a4 Qc4 19. Na5 Qa6 20. b4
Be6 21. Rad1 Rfe8 22. h3 c5 23. Bd3 c4 24. Bf5 Bxf5
25. Qxf5 Bxc3 26. Re3 Bxb4 27. Rxd5 g6 28. Rg3 Kf8 29. Qd7
Bxa5 30. Re3 Rxe3 31. fxe3 Rd8 32. Qb5 Qxb5 33. Rxb5 Bb6
34. Kf2 Rd3 35. a5 Bxe3+ 36. Ke2 Kg7 37. Rb4 Rc3 0-1
[/pgn]


An enjoyable and easy to follow game, but a couple of SuperStar's moves were a bit weak. The programmer, Julio Kaplan, was a strong player, but maybe lacked Chris's skill level in programming and in getting the program to play how he wanted.
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Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 10:58 pm

I am different opinion.
Julio kaplans engines tried to play really good chess.
While dave Kittinger beasts concentrated on tactics.

Julios chess engines were selective.

Of course if we relate this to chris Whittington, we have to admit that chris was able to make good playing engines VERY EARLY in the age of computers.

One cannot say that julio kaplan was a weak chess player. But he had maybe not the best programmers in his heuristic alpha company,
While chris was boss and programmer in one person.
Chris is IMO one of those rare renaissance genius,
He was teacher, carpenter, programmer and chess player. Having 6 children his family was a huge job,
He managed to be father and boss and all kind of duties.
He never forgot his vision.
His earliest chess engines are similar to the last creations.
He never changed. The machines changed.
And so changed the outcome.

Julio Kaplan needed more time then chris Whittington.
He was capable to beat the others with the D and D+ and D++ version but it took many many programs before to refine the engine.

With chris it was different, even his first engines had the same strength (if you forget about the different hardware platforms).

So the spectrum programs were weaker because the hardware was weak. But the software was as strong as on the later hardware platforms.

Yes i would say chris is one of those rare renaissance people.
When i was with him at the Aegon tournament in the hague and he explained me his latest ideas he took out a paper and a pencil and drew his ideas and algorithms on it. Like a painter.

He never stopped this “flue” while talking, it poured out of him like a spirit.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 01, 2021 11:31 pm

This is a very good thread: the story of 8-bit chess computers unfolding in the form of a live tournament with understandable games, 30 years after their time! Cool

I'm struggling to think of a similar experience!

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyThu Sep 02, 2021 12:12 am

Concerning kittinger machines. When i tested (for computer schach and spiele, a big german computerchess magazine) dedicated chess computers from novag, i had to test novag forte A and B with Kittinger engines.

After i wrote the article for chess engines.
I telephoned with the german distributor of novag machines ZENS.
And i told him: it was a hard time to test your machines because they have almost ZERO understanding about chess.

Later on ZENS complained to CSS (Computer schach and Spiele) editorial because he got this telephone call of a tester who complained his dedicated chess computers do not play chess at all.

Very funny.

A few years later NOVAG hired don dailey and larry kaufmann to help them making NOVAG computers playing more KNOWLEDGE able, so don dailey programmed piece square tables into novag 8 bit machines. As a result suddenly the Novag super Forte/Expert C played strategical accurate.
Suddenly the machines put the pieces into the right squares and developed the pieces accurate.
In opposite to the machines i had to test before.

Novag never told us about.
It came out to the public much later.

But it fit with my experience at that time.

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Tibono

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyThu Sep 02, 2021 8:07 am

Hello!

I performed several 15s/move tournaments including ChrisW's Z80 programs (ZX emulator, standard 3.5Mhz). CElo=computer Elo (ref. Excellence=1780 CElo); Rperf=relative performance (hardware agnostic, ref. Excellence=100%)

- 1983 SuperChess (level 2) 1241 CElo (73% Rperf)
- 1985 SuperChess 3.5 1398 CElo (82% Rperf)
- 1989 Clock Chess 89 1430 CElo (84% Rperf)

A breakthrough then in 1990, with Chess Simulator/ChessPlayer 2150 (Amiga/PC DOS) leveraging far more powerful CPUs and enabling much more performing chess software:

- 1990 ChessPlayer 2150 on PC DOS 80386 @16Mhz 1702 CElo (92% Rperf)
- 1990 Chess Simulator (Player 2150) on Amiga 68020 @14.1Mhz 1751 CElo (92% Rperf)

Following ones were Chess Champion 2175, Complete Chess System, Chess System Tal... This later one, indeed a masterpiece; CSTal reaching 109% Rperf = on par with best/latest Spracklen software.


Last edited by Tibono on Thu Sep 02, 2021 8:09 am; edited 1 time in total (Reason for editing : typo)

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Mclane

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyThu Sep 02, 2021 11:34 am

You have to consider that I play 180" per move and spectrum 3x oc.
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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyThu Sep 02, 2021 8:45 pm

I've always wondered how the developers used the 1-4k of RAM that used to be available in the 8-bit chess computers. Some will be needed for recording moves, a few bytes will be needed to memorise various aspects of the system's state (and game state - e.g. castling rights), some will be needed to evaluate positions, and I imagine that most of it will be used to traverse the game tree, and memorise the scores of the best (= "least worst") positions in the game tree.

It has just occurred to me that there are people here who know the answer, so this is actually the ideal place to ask!

One more question: why did even expensive 8-bit chess computers have so little RAM?
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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyFri Sep 03, 2021 7:59 am

TheSelfImprover wrote:
why did even expensive 8-bit chess computers have so little RAM?
In the early 80's I expanded my TRS-80 RAM (from 16K to 48K) and I remember the RAM itself was MUCH expensive. Since, RAM price has dropped down several orders of magnitude!
Usual 8bits CPUs (such as Z80 and 6502) gather 2 x 8bits registers for addressing memory up to 64K addresses, so providing 4K chess computer was not a matter of limited technology - just a cost concern.
And worth pointing out, those chess programs were assembler (machine language) coded, which can be very compact, and enable handling data at bit level. So, game state can be stored in a few bits rather than bytes.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyFri Sep 03, 2021 10:15 am

All true but most intelligent chess engines of that time had at least 8 kb ram.
And rom was at least 32 kb.
Only the first brute force machines had 4 kb because for brute force you dont need so many space. The more selective and intelligent the search and the evaluation is, the more kb you need. This is the reason IMO ed schroeders early Amsterdam prototype (here rebel mystery modul) on the rathsmann pcb had only 4kb and could not generate the playing strength it later created with rebel 5.0 on the new PCB H+G gave ED after his successful appearance in cologne 1986.

Most softwares for homecomputers (e.g. zx spectrum 16k/48k) was split e.g. between the 16k version and the 48k version of the hardware.
So when buying the software you had to decide  which spectrum you have in order to get the most out of the software/hardware.

I remeber some companys put the low ram software on cassette side A and the high ram version on cassette side B.

If we consider at that time c64 had 64 kb ram giving the end user arround 30 kb size, cpc464 similar, spectrum 48k, oric atmos etc. Or bbc acorn B, this means most homecomputers had more ram then the usual dedicated chess computer with its 32 / 8 kb platform.

The main difference was mhz.

Most dedicated chess computers were 3.7 mhz, 4 mhz, 5 mhz or more.

The 6502 beeing used were special versions that could run faster then the homecomputer cpus.

C64 and even first apple machines had only 1 mhz cpu !!
Zx spectrum was 3.5 on a z80a.


In the early years of dedicated chess computers the 6502 was also slow and limited to 1-2 mhz. But then faster versions were used and the mhz increased from these 3,3.6 or 3.7 to 4 and 5 and later even 6-8.

E.g. mkV 1981 was only 2 mhz.
Constellation from novag 1983 was 2.
Superstar36K from 1984 was 2 mhz but is overclocked in my tournament.

Rathsmann was 3.7 mhz . You maybe remember novag came out with a model called constellation 3.6 mhz.
And super constellation was 4 mhz from the beginning.

There was a race going on, a competition between those companies
Fidelity, novag, HG and scisys and therefore they had to put faster hardware and better software into their expensive machines.

We and the programmers profit from this competition. Because the end users got better hardware and software and the platforms formthe programmers also devloped into better platforms.

If you could win championships or tournaments you could make a better deal and the ICCA was the organisation were the deals were prepared.

Obviously the organisation to benefit the chess programmers was mainly an organisation for some to exploit the situation and make money.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyFri Sep 03, 2021 9:37 pm

in the 8th round the first game is between ClockChess89 and Superstar36K by Julio Kaplan.

First it looked like a clear win of Superstar with one piece ahead, but then clock chess turned the game into a draw.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.09.01"]
[Round "8"]
[White "Clockchess89 Spectrum 300%"]
[Black "SciSys Superstar36K oc"]
[ECO "A49"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. g3 g6 3. d4 {"} Bg7 {"} 4. Bg5 O-O 5. Bh3 d5
6. Bxc8 Qxc8 7. Nc3 e6 8. O-O c5 9. e3 Nbd7 10. Re1 Ne4
11. Nxe4 dxe4 12. Nd2 f6 13. Bf4 Qc6 14. h4 e5 15. dxe5
fxe5 16. Bg5 h6 17. Bxh6 Bxh6 18. Qg4 Kg7 19. Qxe4 Qc7
20. Rad1 Nf6 21. Qc4 b5 22. Qxb5 Rab8 23. Qc4 Rxb2 24. Nb3
Qf7 25. Qc3 Ng4 26. f4 Rxa2 27. Nxc5 Rc8 28. Rd3 Kg8
29. Red1 Bf8 30. Rd8 Rxd8 31. Rxd8 Kg7 32. Rd7 Be7 33. Nd3
Qe8 34. Nxe5 Nxe5 35. Qxe5+ Kf7 36. Qd5+ Kf8 37. c4 Bxh4
38. Qd4 Be7 39. Rb7 Kf7 40. Rxa7 Rxa7 41. Qxa7 Qc8 42. Qd4
Qc7 43. Qd5+ Ke8 44. Kf2 Kf8 45. Kf3 Bd6 46. e4 Bc5 47. g4
Qb6 48. f5 Bg1 49. g5 Qf2+ 50. Kg4 Qe2+ 51. Kg3 Bh2+
52. Kh3 Qf3+ 53. Kxh2 Qf2+ 54. Kh3 Qf3+ 55. Kh2 Qf2+
56. Kh3 Qf3+ 57. Kh4 1/2-1/2
[/pgn]

Amazing.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyFri Sep 03, 2021 10:57 pm

Mclane wrote:
in the 8th round the first game is between ClockChess89 and Superstar36K by Julio Kaplan.

First it looked like a clear win of Superstar with one piece ahead, but then clock chess turned the game into a draw.

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.09.01"]
[Round "8"]
[White "Clockchess89 Spectrum 300%"]
[Black "SciSys Superstar36K oc"]
[ECO "A49"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. g3 g6 3. d4 {"} Bg7 {"} 4. Bg5 O-O 5. Bh3 d5
6. Bxc8 Qxc8 7. Nc3 e6 8. O-O c5 9. e3 Nbd7 10. Re1 Ne4
11. Nxe4 dxe4 12. Nd2 f6 13. Bf4 Qc6 14. h4 e5 15. dxe5
fxe5 16. Bg5 h6 17. Bxh6 Bxh6 18. Qg4 Kg7 19. Qxe4 Qc7
20. Rad1 Nf6 21. Qc4 b5 22. Qxb5 Rab8 23. Qc4 Rxb2 24. Nb3
Qf7 25. Qc3 Ng4 26. f4 Rxa2 27. Nxc5 Rc8 28. Rd3 Kg8
29. Red1 Bf8 30. Rd8 Rxd8 31. Rxd8 Kg7 32. Rd7 Be7 33. Nd3
Qe8 34. Nxe5 Nxe5 35. Qxe5+ Kf7 36. Qd5+ Kf8 37. c4 Bxh4
38. Qd4 Be7 39. Rb7 Kf7 40. Rxa7 Rxa7 41. Qxa7 Qc8 42. Qd4
Qc7 43. Qd5+ Ke8 44. Kf2 Kf8 45. Kf3 Bd6 46. e4 Bc5 47. g4
Qb6 48. f5 Bg1 49. g5 Qf2+ 50. Kg4 Qe2+ 51. Kg3 Bh2+
52. Kh3 Qf3+ 53. Kxh2 Qf2+ 54. Kh3 Qf3+ 55. Kh2 Qf2+
56. Kh3 Qf3+ 57. Kh4 1/2-1/2
[/pgn]

Amazing.


On move 14, Clock Chess trapped it's own Bishop!

Given how well it played in the rest of the game, if it hadn't done that, it would very likely have won!

For the want of a bit more bean-counting... Sad
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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyFri Sep 03, 2021 11:17 pm

There were many horizont moves in between to see it. I guess there was no knowledge about trapped pieces in evaluation score.
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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptyWed Sep 08, 2021 5:30 pm

in the next game Mephisto III S Glasgow in the Petrosian hardware has to fight the Superconstellation:

[pgn]
[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.09.05"]
[Round "8"]
[White "GM Petrosian Glasgow 25 mhz"]
[Black "Novag Super Constellation"]
[ECO "A47"]
[Result "0-1"]

1. d4 Nf6 2. Nf3 b6 3. Nc3 d5 {"} 4. Bg5 Bb7 5. e3 e6
6. Bb5+ c6 7. Bd3 Be7 8. Ne5 {"} c5 9. f3 O-O 10. O-O h6
11. Bxf6 Bxf6 12. Qd2 Nc6 13. Nxc6 Bxc6 14. dxc5 bxc5
15. Rad1 c4 16. Be2 Qb6 17. b3 Rad8 18. Nb1 cxb3 19. axb3
d4 20. Na3 dxe3 21. Qc1 Qc5 22. Nc4 Rd2 23. b4 Rxd1
24. Rxd1 Qxb4 25. Nxe3 Bb2 26. Qd2 Qxd2 27. Rxd2 Bc1
28. Rd3 a5 29. Kf2 Ra8 30. Rd6 Be8 31. Bd3 a4 32. Be4 Rb8
33. h3 Bb5 34. Rd1 Bb2 35. c4 Be8 36. g4 Bf6 37. Bb1 a3
38. Kg3 Rxb1 39. Rxb1 a2 40. Rh1 a1=Q 41. Rxa1 Bxa1 42. Nc2
Bc3 43. Ne3 Kf8 44. Nd1 Bd4 45. Nf2 Ba4 46. Ne4 Bb3 47. Nd2
Ba2 48. Kf4 Ke7 49. h4 Bc3 50. Ne4 Bd4 51. Nd2 g5+ 52. hxg5
hxg5+ 53. Ke4 Bc3 54. Kd3 Bxd2 55. Kxd2 Bxc4 56. Ke3 Kf6
57. Ke4 Bd5+ 58. Ke3 Ke5 59. f4+ gxf4+ 60. Ke2 f3+ 61. Kf2
Kf4 62. g5 {Aufgabe, -9.99} 0-1
[/pgn]

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySat Sep 11, 2021 8:29 pm

[pgn]

[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.09.11"]
[Round "8"]
[White "Excal.Einstein Ch.Wizard"]
[Black "Schneider Titan 16 mhz"]
[ECO "C07"]
[Result "1-0"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4
6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Qxd4
Qxd4 11. Nxd4 Bc5 12. Nb3 Bb6 13. a4 O-O 14. Bf4 Rd8 15. a5
Bd4 16. Rfd1 e5 17. Bxe5 b5 18. Bxb5 Bxf2+ 19. Kxf2 Rxd1
20. Rxd1 Ng4+ 21. Kg3 Bf5 22. Rf1 Bxc2 23. Kxg4 Bxb3
24. Kg3 f6 25. Bc7 Rc8 26. Rc1 Kf7 27. Bd7 Rg8 28. Bc6 Ke6
29. Rc3 Ba2 30. a6 Rc8 31. Bb7 Rf8 32. Bf4 Rd8 33. Be3 Rd1
34. Bxa7 h6 35. Rc6+ Kd7 36. Be3 Bd5 1-0
[/pgn]

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySat Sep 11, 2021 10:44 pm

Mclane wrote:
[pgn]

[Event "40/120 sommerturnier"]
[Site "SCW"]
[Date "2021.09.11"]
[Round "8"]
[White "Excal.Einstein Ch.Wizard"]
[Black "Schneider Titan 16 mhz"]
[ECO "C07"]
[Result "1-0"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4
6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Qxd4
Qxd4 11. Nxd4 Bc5 12. Nb3 Bb6 13. a4 O-O 14. Bf4 Rd8 15. a5
Bd4 16. Rfd1 e5 17. Bxe5 b5 18. Bxb5 Bxf2+ 19. Kxf2 Rxd1
20. Rxd1 Ng4+ 21. Kg3 Bf5 22. Rf1 Bxc2 23. Kxg4 Bxb3
24. Kg3 f6 25. Bc7 Rc8 26. Rc1 Kf7 27. Bd7 Rg8 28. Bc6 Ke6
29. Rc3 Ba2 30. a6 Rc8 31. Bb7 Rf8 32. Bf4 Rd8 33. Be3 Rd1
34. Bxa7 h6 35. Rc6+ Kd7 36. Be3 Bd5 1-0
[/pgn]


Black suffers badly from the horizon effect - one of the biggest problems at that time.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySun Sep 12, 2021 4:16 pm

The next game is Ed Schröders Rebel Mystery aka rebel amsterdam prototype vs. Chafitz steinitz encore with 4 mhz.

summer tournament - Page 3 0765d510

The Steinitz machine is by Larry Atkin.
Larry Atkin

Normally it runs at 2 mhz but this version has 4 mhz to be competitive.

The hardware has no sensor board but keys instead and neither LEDs nor LCDs but a glass tube like it was in the early pocket calculators and arm watches.

Maybe you remember.

The machine can be made very tiny by sliding the display and the keyboard under the chess board.
It was modular at that time and you were Able to buy other engines for it, a module called morphy, one called capablanca etc.

Even sargon 2.5.

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySun Sep 12, 2021 9:06 pm

Mclane wrote:
The next game is Ed Schröders Rebel Mystery aka rebel amsterdam prototype vs. Chafitz steinitz encore with 4 mhz.

summer tournament - Page 3 0765d510

The Steinitz machine is by Larry Atkin.
Larry Atkin

Normally it runs at 2 mhz but this version has 4 mhz to be competitive.

The hardware has no sensor board but keys instead and neither LEDs nor LCDs but a glass tube like it was in the early pocket calculators and arm watches.

Maybe you remember.

The machine can be made very tiny by sliding the display and the keyboard under the chess board.
It was modular at that time and you were Able to buy other engines for it, a module called morphy, one called capablanca etc.

Even sargon 2.5.


Looking at that Steinitz display, it looks like an LED display to me rather than a nixie tube (link).
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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySun Sep 12, 2021 9:10 pm

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PostSubject: Re: summer tournament   summer tournament - Page 3 EmptySun Sep 12, 2021 10:28 pm

Mclane wrote:
The picture is not close enough to see it.

It looks like this here
https://www.etsy.com/de/listing/692939961/nixie-rohr-uhr-iv-18-vfd-100-montiert?ref=pla_sameshop_listing_top-1&frs=1


Zooming in to 500%, it's clear that the display is an 8 segment display (standard LED displays were 7 segments for displaying digits).

Even more interesting, the "nixie clock" linked in the quoted text does not use nixie tubes either! It's using VFD (Vacuum Fluorescent Display), so calling it a "Nixie Tube Clock" is misleading.

See the images linked in my previous post to see what nixie tubes look like.

On a device made in the 1980s, you would expect them to use an LED display. However, they might have used an 8-segment VFD display so that letters could be displayed clearly. If so, maybe the extra cost could have been spent on higher spec CPU or more memory? Having said that, there is no shortage of products where appearance has been put ahead of functionality. You'd be amazed how much poor functionality can be forgiven when the appearance is good!
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