Spacious-Mind Swiss Chess Computer League - Div 4

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spacious_mind
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Spacious-Mind Swiss Chess Computer League - Div 4

Post by spacious_mind »

Just to show that I was not totally idle in the last 12 months, here is a kind of chess league that I started almost a year ago. The idea behind it was Ed Schroeder's DOS Box and DOS chess program oldies that he shares at his site:

http://rebel13.nl/index.html

Anyway, this has made me wonder how good these programs actually are playing under DOSBox. Since there are a lot of DOS programs to cover and in order to compare them I would need to add some dedicated chess computers, therefore I decided to create a Swiss Chess League.

As I started listing the programs I wanted to enter into the league I thought that this would also be a great opportunity to test just how good Atari ST and Commodore Amiga programs would be if they would have been allowed to be played at the fastest possible speed available today.

Therefore as I started to list DOSBox programs, Amiga, ST and dedicated chess computers, I quickly came up with a list of well over 100 programs that I wanted to play and I realized that this would take for ever to complete.

As a result I decided to break the programs down into divisions of 30 players. Therefore I started the League with 30 programs to play in Division 4. Division 4 is the weakest of the leagues that I intend to play through and therefore for this division I picked what I guessed to be the weakest programs from my list. My intent someday is that once I have completed Division 1 sometime in the future, I would then add a Premier League and perhaps follow this up with a Super League. Who knows.

Well 30 programs in a league is lot of games even if you play each opponent only once. Therefore I really felt I that I didn't have the energy for that. Instead I decided to make it a Swiss League of 12 rounds with round opponents to be picked by the Swiss pairing system. 12 rounds of Swiss amounts to 180 games in total which is a lot more manageable than playing each opponent once or even twice.

Another rule I decided upon was that upon completing Division 4, I would allow the top 10 finishers to be promoted to Division 3. I felt this would be fair, since for a few programs I am in no man's land with regards to knowing for sure how well they would actually perform. In a sense by doing it this way, I would also be able to see later who the bottom 10 finishers are in Division 3 and compare them to the top 10 finishers of Division 4 and so on.

Spacious-Mind Swiss Chess Computer League - Division 4 Contestants

Image

The above list shows the 30 Division 4 contestants that I picked. If you think there are DOS, ST or Amiga programs missing, then it is probably because I ranked them higher and expect them to join in when Division 3, 2 & 1 get played.

For the ratings I just guessed them. But I did keep some original ratings as well and used Schachcomputer.Info Active list as well for dedicated chess computers. Therefore for example Chess Champion 2175, I started as USCF 2175 regardless if it is playing under DosBox, Atari Emulator or Amiga Emulator. Same with Chessmaster 2000 etc.

In the above list you will see the ratings that I am using with Rtg being an USCF rating and RtgF being a FIDE rating. For dedicated computers I used Schachcomputer.Info's old active list for the rating, you will see how that compares to the ratings that I am using by looking at this link:

http://www.spacious-mind.com/html/ratin ... ments.html

Don't take the USCF or FIDE too seriously, I am doing this for fun, and I am at the end of the day also curious in seeing where it all ends up. Besides it will also be fun to see if a Chess Champion 2175 actually ends up with 2175 ELO on fast hardware emulations.

For Emulators I am using the following:

1) DOSBox with Ed Schroeders settings running on a 3.4 GHz 8 core computer.
2) Hatari ST Emulator at full speed which is 68060-32 MHz
3) WinUAE Emulator at full speed using a 68060 ROM that runs at approximately 50-66 MHz.

Therefore the Atari and Amiga programs should really not be pushovers. In total you have playing in Division 4:

15 Dos programs
4 Amiga programs
3 Atari ST
8 Dedicated chess computers

I have managed to play 5 Rounds in the last 10 or so months which is 75 games. Which for me is not very much as I would have typically in the past finished up all 180 games in a month :(

Spacious-Mind Swiss Chess Computer League - Division 4 Round 1

Image

The only surprise really in Round 1 was the Grandmaster draw between Saitek Corona against Fidelity Mach III Master which took only 14 moves.

An interesting game was Atari Sargon 3 beating Atari Chess Champion 2175.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "1"]
[White "AT68060-32 Sargon 3, 30S."]
[Black "AT68060-32 CC2175, 30S."]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1941"]
[BlackElo "2112"]
[Annotator "Spacious-Mind"]
[PlyCount "109"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 c5 2. c3 e6 {AT68060-32 Sargon 3 out of book} 3. d4 d5 4. e5 Nc6 5. Nf3 {AT68060-32 CC2175 out of book} Bd7 6. Be2 cxd4 7. cxd4 Bb4+ 8. Nc3 Nge7 9. a3 Ba5 10. O-O O-O 11. Bg5 f6 12. exf6 gxf6 13. Bh6 Rf7 14. Qd2 Nf5 15. Bf4 Rg7 16. b4 Bb6 17. Be3 a5 18. b5 Nxe3 19. fxe3 Ne7 20. Rac1 Nf5 21. Bd3 Nd6 22. Qf2 f5 23. Ne5 Be8 24. Qf4 a4 25. Be2 Ra5 26. Qh6 Bg6 27. Bd1 Nxb5 28. Nxa4 Bc7 29. Nc5 Bxe5 30. dxe5 Qe7 31. a4 Na7 32. Nd3 Qa3 33. Qh4 Rd7 34. Rc7 Rxc7 35. Qd8+ Be8 36. Qxe8+ Qf8 37. Qxe6+ Qf7 38. Qd6 Nc8 39. Qd8+ Kg7 40. Rf3 Ra6 41. Rxf5 Qe7 42. Qxd5 Nb6 43. Qf3 Rc3 44. e6 Rc7 45. Qg3+ Kh8 46. Qe5+ Kg8 47. Rg5+ Qxg5
48. Qxg5+ Kh8 49. Qd8+ Kg7 50. Qxc7+ Nd7 51. exd7 Rc6 52. Qe5+ Kf7 53. Bh5+ Rg6 54. d8=Q h6 55. Qef6# 1-0

I thought this was a fun game when I watched it being played.

Spacious-Mind Swiss Chess Computer League - Division 4 Round 2

Image

Nothing too exciting in Round 2. Novag Scorpio took 109 moves to beat DosBox Chess Friend which was a grind. Mephisto Almeria 68000 draw against Atari Sargon 3 took only 22 moves. What has already become apparent though is that the DOSBox programs are not nearly as good or as strong as their Amiga and Atari counterparts. It is almost like when they were converted to DOS, they were changed and weakened.

Spacious-Mind Swiss Chess Computer League - Division 4 Round 3

Image

The first big surprise came in Round 3 with Novag Scorpio losing to Amiga Chess Player 2150. Excalibur Igor lost to Sakarra Vega and another surprise with Krypton Challenge losing to DB Powerchess 5.3

Here is how Amiga Chess Player 2150 defeated Novag Scorpio:

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "3"]
[White "AM68060 CP2150, 30S."]
[Black "Novag Scorpio, 30S."]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "2088"]
[BlackElo "2046"]
[Annotator "Spacious-Mind"]
[PlyCount "103"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Nc5 {AM68060 CP2150 out of book} 10. a4 {Novag Scorpio out of book} Na5 11. Nd4 Naxb3 12. Nxe6 Nxe6 13. Nxb3 c6 14. Qe2 Be7 15. Be3 O-O 16. f4 f5 17. Rfd1 Qd7 18. Qd3 b4 19. a5 Qb7 20. g3 Rae8 21. Kg2 Kh8 22. Bb6 Qc8 23. c4 bxc3 24. Qxc3 Qb7 25. Rac1 Rc8 26. Nd4 Nxd4 27. Qxd4 Kg8 28. Rc2 Rb8 29. Rdc1 Rfc8 30. Kh3 Kh8 31. Qa4 c5 32. Bxc5 Bxc5 33. Rxc5 Rxc5 34. Rxc5 Qf7 35. Qc2 Rd8 36. Rc6 Qb7 37. Rb6 Qf7 38. Rxa6 Kg8 39. Rc6 d4 40. Rc8 Qe8 41. Rxd8 Qxd8
42. Qb3+ Kh8 43. Qf7 d3 44. e6 Qg8 45. a6 g5 46. Qf6+ Qg7 47. fxg5 h6 48. e7 Qxf6 49. gxf6 Kh7 50. e8=Q d2 51. Qf7+ Kh8 52. Qg7# 1-0

Mephisto Almeria was lucky against DB Chessmaster 2100 and should have lost:

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "3"]
[White "DB Chessmaster 2100, 60/30."]
[Black "Mephisto 68000 Almeria, 60/30."]
[Result "0-1"]
[ECO "C83"]
[WhiteElo "2039"]
[BlackElo "2093"]
[Annotator "Spacious-Mind"]
[PlyCount "163"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Qe2 Nc5 12. Nd4 Nxb3 13. Nxc6 Nxc1 14. Raxc1 Qd7 15. Nxe7+ Qxe7 {DB Chessmaster 2100 out of book} 16. Rcd1 {Mephisto 68000 Almeria out of book} Bf5 17. Nb3 c6 18. Rfe1 Rfe8 19. Nd4 Qd7 20. Qe3 h6 21. Rd2 Rac8 22. h3 a5 23. Nb3 a4 24. Nc5 Qa7 25. Red1 Ra8 26. Qd4 a3 27. bxa3 Qxa3 28. f4 Re7 29. Rf1 Rea7 30. Rfd1 Ra5 31. Re1 Be6 32. Rf1 Bc8 33. f5 R5a7 34. f6 g6 35. Re1 Bf5 36. Red1 Re8 37. Re2 Kh7 38. Rf2 Ra5 39. Re2 Raa8 40. Rf2 Bc8 41. Re2 Ra7 42. Rf2 Bf5 43. Rdd2 Ra5 44. Rf1 Raa8 45. Re1 Ra7 46. Red1 Rea8 47. Rf1 Rd8 48. Re2 Re8 49. Rfe1 Rea8 50. Kh1 Rc7 51. Rd2 Re8 52. Rf1 Ra7 53. Re1
Bc8 54. Red1 Ra8 55. Re2 Bf5 56. Qe3 b4 57. Nb3 bxc3 58. Qxc3 Ra6 59. Red2 Be4 60. Rc1 Kg8 61. Nc5 Qxc3 62. Rxc3 Raa8 63. e6 Bb1 64. Rb3 Bxa2 65. Rb7 Rf8 66. Nd7 fxe6 67. Nxf8 Kxf8 68. Rh7 Kg8 69. Rg7+ Kf8 70. Rxg6 h5

POSITION AFTER 70. ... h5

[fen]r4k2/8/2p1pPR1/3p3p/8/7P/b2R2P1/7K w - - 0 71[/fen]

71. Rf2 Bb1 72. Rh6 Kf7 73. Rxh5 Ra2 74. Rxa2 Bxa2 75. Rh6 d4 76. g4 d3 77. Rh7+ Kxf6 78. Rh8 Kg7 79. Ra8 d2 80. Ra7+ Kf6 81. Kh2 d1=Q 82. Rxa2 0-1

Almeria was lucky that DB Chessmaster 2100 blundered and fell apart.

Fidelity Mach III Master against Atari Sargon 3 was also a good game. Mach III Master knew how to play the endgame better.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "3"]
[White "AT68060-32 Sargon 3, 30S."]
[Black "Fidelity Mach III Master, 30S."]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "1941"]
[BlackElo "2046"]
[Annotator "Spacious-Mind"]
[PlyCount "128"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6 6. g3 Qb6 7. Nb3 {
Fidelity Mach III Master out of book} Bb4 8. Bg2 Ng4 {AT68060-32 Sargon 3 out of book} 9. O-O Bxc3 10. bxc3 O-O 11. e4 Nge5 12. c5 Qa6 13. f4 Nc4 14. Rf2 f6 15. a4 b6 16. Raa2 Rf7 17. cxb6 Qxb6 18. Nd4 Rb8 19. f5 e5 20. Nb5 Ba6 21. Nd6 Nxd6 22. Qxd6 Qa5 23. Qa3 Rb1 24. Rad2 Bb5 25. Bf1 Qxa4 26. Qxa4 Bxa4 27. Ba3 Bb5 28. Rb2 Rxf1+ 29. Rxf1 Bxf1 30. Kxf1 a5 31. Rb7 g6 32. g4 gxf5 33. gxf5 Rg7 34. Ke2 h5 35. Kd3 h4 36. Rc7 Rg1 37. Kc4 Rd1 38. Bc5 h3 39. Rc8+ Kg7 40. Rc7 Rd2 41. Be3 Rxh2 42. Rxd7+ Kg8 43. Rc7 Nd4 44. Rc8+ Kf7 45. Rc7+ Ke8 46. Bxd4 exd4 47. Kxd4 a4 48. Ra7 Rd2+ 49. Ke3 h2 50. Rh7 Rb2 51. Rh8+ Kf7 52. Rh7+ Kg8
53. Rh3 a3 54. e5 a2 55. e6 a1=Q 56. e7 Qg1+ 57. Kd3 Rb8 58. Rxh2 Qxh2 59. e8=Q+ Rxe8 60. Kc4 Qf4+ 61. Kd3 Qe4+ 62. Kd2 Rd8+ 63. Kc1 Qe2 64. Kb1 Rd1# 0-1

Spacious-Mind Swiss Chess Computer League - Division 4 Round 4

Image

There were a few minor surprises in Round 4 with Amiga Chess Player 2150 beating the later supposed improved version Amiga Chess Champion 2175. Draws for Mephisto Almeria and Fidelity Mach III Master were also a little bit of a surprise. And, of course Novag Scorpio losing to Saitek Corona was the biggest surprise of the Round.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "4"]
[White "Novag Scorpio, 30S."]
[Black "Saitek Corona, 30S."]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "2046"]
[BlackElo "1934"]
[Annotator "Spacious-Mind"]
[PlyCount "116"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 c5 2. Nc3 e6 3. Nf3 {Saitek Corona out of book} d5 {Novag Scorpio out of book} 4. exd5 exd5 5. d4 Nf6 6. Bg5 cxd4 7. Nxd4 Bb4 8. Qf3 Nc6 9. Nxc6 bxc6 10. O-O-O Be7 11. Re1 O-O 12. h3 Be6 13. Bd3 Re8 14. Bf5 d4 15. Bxf6 Bxf6 16. Na4 Bd5 17. Rxe8+ Qxe8 18. Qg4 g6 19. Bd7 Qe7 20. h4 Bg7 21. c4 dxc3 22. Nxc3 Bxc3 23. bxc3 Rd8 24. Kb2 Rxd7 25. Rc1 f5 26. Qa4 Bxg2 27. Qc4+ Bd5 28. Qa6 Qxh4 29. Rc2 Be4 30. Qc8+ Rd8 31. Qe6+ Kf8 32. Re2 Bf3 33. Rc2 Bd1 34. Rc1 Qxf2+ 35. Ka1 Qd2 36. Qf6+ Kg8 37. Rb1 Qd6 38. Qxd6 Rxd6 39. Rb8+ Kg7 40. Rb7+ Kh6 41. Rf7 a5 42. Kb1 Bf3 43. Ra7 f4 44. Kc1 Rd5 45. Rf7 g5 46. Rf6+ Kh5 47. Rxc6 g4 48. Re6 g3 49. Re1 Rd1+ 50. Rxd1 Bxd1 51. Kxd1 g2 52. Kd2 g1=Q 53. c4
f3 54. Kd3 f2 55. Ke4 f1=Q 56. a4 Qxc4+ 57. Ke5 Qe3+ 58. Kd6 Qee6# 0-1

Spacious-Mind Swiss Chess Computer League - Division 4 Round 5

Image

The two top placed programs in Round 4 played out a draw. Fidelity Mach III and Mephisto Almeria both won.

The most interesting game of the round was watching Atari Sargon 3 beating DB Chess Friend.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2016"]
[Round "5"]
[White "AT68060-32 Sargon 3, 30S."]
[Black "DB Chess Friend, 30S."]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1941"]
[BlackElo "2135"]
[Annotator "Spacious-Mind"]
[PlyCount "153"]
[EventDate "2016"]
[EventType "swiss (rapid)"]
[EventRounds "15"]
[EventCountry "USA"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. a4 Qf6 7. Qe2 Nge7 8. a5 Nd4 9. Nxd4 Bxd4 10. c3 Bc5 11. g3 O-O 12. Bg2 a6 13. O-O d6 14. b4 Ba7 {AT68060-32 Sargon 3 out of book} 15. Bd2 {DB Chess Friend out of book} Re8 16. Na3 Nc6 17. Nc2 Be6 18. Ne3 Rab8 19. f4 Bb3 20. Qd3 Qe6 21. Kh1 Bxe3 22. Qxe3 Bc2 23. Rfe1 Qc4 24. Qf3 h6 25. Rac1 Bb3 26. Qf2 Re7 27. Kg1 Rbe8 28. Bf1 Qe6 29. c4 Qg6 30. Rc3 Ba2 31. Ra3 Bxc4 32. Bxc4 Kh7 33. Rc1 Nd8 34. Bd3 Qe6 35. Rac3 c6 36. f5 Qf6 37. Be3 Rd7 38. Bd4 Qg5 39. Kg2 Qg4 40. Be3 f6 41. h3 Qh5 42. Rc4 d5 43. exd5 Qf7 44. Rc5 cxd5 45. b5 Rde7 46. Bd4 axb5 47. Bxb5 Rh8 48.
Qf3 Nc6 49. Bxc6 bxc6 50. Rxc6 Rhe8 51. R1c2 Re4 52. Rc7 Qf8 53. Qd3 Ra8 54. R2c5 Rd8 55. Bc3 Rde8 56. Rxd5 Re2+ 57. Kf3 R2e7 58. Rxe7 Qxe7 59. a6 Rc8 60. Kg2 Qa3 61. Bd2 Qa2 62. Ra5 Qf7 63. Be3 Qc7 64. Rc5 Qb8 65. Rxc8 Qxc8 66. a7 Qa8+ 67. Kh2 Qf3 68. Qc2 Qd5 69. Qg2 Qd3 70. Qf3 Qc2+ 71. Bf2 Qb1 72. Kg2 Qa2 73. a8=Q Qd2 74. Qh5 Qg5 75. Qf7 h5 76. Qfg8+ Kh6 77. Qh8# 1-0

Spacious-Mind Swiss Chess Computer League - Division 4 Table after 5 Rounds

Image

Well Amiga 68060 Chess Player 2150 leads after 5 rounds followed by 3 dedicated chess computers. Novag Scorpio is out of the top 10 following its 2 consecutive losses in Rounds 3 and 4.

Spacious-Mind Swiss Chess Computer League - Division 4 Round 6 Pairing

Image

Well this is as far as I have got with this Division 4 Swiss League so far.

Best regards
Nick
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Fernando
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Post by Fernando »

I almost cannot believe the incredible amount of effort and time put into this....Let me say "chapeau"!

Fern
Festina Lente
steffen
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Post by steffen »

Welcome back, Nick :-)
Seems that we all had missed you.
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Bryan Whitby
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Post by Bryan Whitby »

Back with a bang and so much to digest!

Regards
Bryan
mychess
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Post by mychess »

Hi all,

I'm ver happy to see Ychess.
It is a small and very strong program.
I bet on Ychess to be in the top 2, but surely first.

Cordialy.
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spacious_mind
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Post by spacious_mind »

mychess wrote:Hi all,

I'm ver happy to see Ychess.
It is a small and very strong program.
I bet on Ychess to be in the top 2, but surely first.

Cordialy.
Yes YChess does seem to be one of the better DOS programs in Division 4. I am not sure though if it will be able to keep its 10 position after having already lost a couple of games and with Novag Scorpio (currently 11th) for sure being an expected favorite to improve its position in the remaining 7 rounds.

YChess next round match will definitely be an interesting test for it against Amiga Chess Champion 2175.

Best regards
Nick
Nick
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dedicate computers
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Dos program

Post by dedicate computers »

Hello nick,

Congratulations, the difficulty is how long I need to analyze a lot of this information.
Well, congratulations, back to the home.
Regards
Oswaldo
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spacious_mind
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Post by spacious_mind »

I just completed the first game of Round 6 between Fidelity 68000 Mach III Master against Amiga 68060 Chess Player 2150.

Amiga CP2150 did not really understand the opening and got itself into a lot of trouble whereas Mach III Master played the opening and early middle game really well. It looked as if Mach III Master was going utterly murder CP2150.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2017"]
[Round "6"]
[White "Fidelity Mach III Master, 30S."]
[Black "AM68060 CP2150, 30S."]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2046"]
[BlackElo "2088"]
[Annotator "Spacious-Mind"]
[PlyCount "112"]
[EventDate "2017"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bd6 7. e4 {AM68060 CP2150 out of book} Nxe4 {Fidelity Mach III Master out of book} 8. Nxe4 dxe4 9. Bxe4 Nf6 10. Bc2 Bb4+ 11. Bd2 Bxd2+ 12. Qxd2 Bd7 13. Ne5 Qb6 14. O-O-O Rd8 15. Kb1 O-O 16. Rhe1 Be8 17. Qd3 h5 18. g4 g6 19. gxh5 Nxh5 20. Qe3 Nf6 21. Rg1 Kg7 22. Ka1 Rh8 23. c5 Qb4 24. a3 Qb5 25. Rg2 Nd5 26. Qf3 Rh4

[fen]3rb3/pp3pk1/2p1p1p1/1qPnN3/3P3r/P4Q2/1PB2PRP/K2R4 w - - 0 27[/fen]

This is critical position where a sacrifice was needed. 27. Bxg6! (nice) would have won convincingly and quickly for Mach III. It probably just needed a little more time for Mach III to perhaps find this move as the combination that would have followed looks quite straightforward. I think at Level A4 which is the setting for Average time of 30s per move (60/30) which are the conditions for this tournament was not enough time for Mach III to find the winning move. 27. Nxg6 would also have won but not quite as easily as 27. Bxg6+.

Anyway, Mach III played 27. Ng4 and missed the win. After this move CP2150's previous disjointed pieces found life and CP2150 combined nicely and ruthlessly to win the game quickly and easily.

27. Ng4 f5 28. Ne3 Nf4 29. Rg3 Qe2 30. Bb3 Bf7 31. Qh1 Nh5 32. Rf3 Rhxd4 33. Rxd4 Rxd4 34. Ka2 Nf6 35. Nf1 f4 36. h4 a5 37. a4 e5 38. Bxf7 Kxf7 39. Qg2 Qc4+ 40. Rb3 Qxa4+ 41. Ra3 Qc4+ 42. Rb3 a4

[fen]8/1p3k2/2p2np1/2P1p3/p1qr1p1P/1R6/KP3PQ1/5N2 w - - 0 43[/fen]

It's hopeless for Mach III.

43. Qf3 Rd8 44. Nd2 Rxd2 45. Qc3 Qxb3+ 46. Qxb3+ axb3+ 47. Kxb3 Rxf2 48. Kc4 f3 49. h5 gxh5 50. b4 Rd2 51. b5 f2 52. Kc3 Ne4+ 53. Kb4 f1=Q 54. Ka3 Qf3+ 55. Ka4 Ra2+ 56. Kb4 Qc3# 0-1

I wonder how many dedicated chess computers would find 27. Bxg6! at a setting of 30s per move average time?

Best regards
Nick
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scandien
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Post by scandien »

Helo Nick,
I would like to know your settings for DosBox.


My settings are running at 3000 cycles and m'y rating for oldies running on dosbox are far lower than your's


Best regard

Nicolas
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spacious_mind
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Post by spacious_mind »

scandien wrote:Helo Nick,
I would like to know your settings for DosBox.


My settings are running at 3000 cycles and m'y rating for oldies running on dosbox are far lower than your's


Best regard

Nicolas
Hi Nicolas

My ratings are just guesses for DOSBox, since I rated Chessmaster 2000 at 2000 to match its name I just threw a rating in for the rest, not knowing if Powerchess for example is better or worse than Chessmaster 2000. It is obvious after a game though that Rival or Powerchess are much worse. Rival is probably only about 1000-1400. :)

I will let you know once I open DOSbox for its next game the setting.

Regards
Nick
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Post by spacious_mind »

Here is the second round 6 game.

Mephisto Almeria 68000 - Saitek Corona

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2017"]
[Round "6"]
[White "Mephisto 68000 Almeria, 60/30."]
[Black "Saitek Corona, 30S."]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2093"]
[BlackElo "1937"]
[Annotator "Spacious-Mind"]
[PlyCount "140"]
[EventDate "2017"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 c5 2. Nf3 e6 3. Be2 Nf6 4. e5 Nd5 5. d4 cxd4 6. Qxd4 Nc6 7. Qe4 f5 {
Mephisto 68000 Almeria out of book} 8. exf6 Nxf6 9. Qd3 {Saitek Corona out of book} d5 10. Bf4 Bc5 11. O-O O-O 12. Nc3 Bd7 13. a3 Ng4 14. Bg3 Be8 15. h3 Nf6 16. Rfe1 Bg6 17. Qb5 Qe7 18. Bd3 a6 19. Qb3 Bxd3 20. cxd3 b5 21. Rad1 Bb6 22. d4 Rac8 23. Qc2 Ba7 24. Qe2 Rfe8 25. Qd3 b4 26. Ne2 a5 27. Rc1 Qd7 28. Ng5 e5 29. dxe5 Nxe5 30. Bxe5 Rxe5 31. Nf3 Rxc1 32. Rxc1 Re4 33. Ng3 Re8 34. Qa6 bxa3 35. bxa3 Qe7 36. Rc8 Rxc8 37. Qxc8+ Qf8 38. Qb7 Bc5 39. Qb5 Bxa3 40. Qxa5 Bc5 41. Qb5 Qc8 42. Ne2 Kh8 43. Ng5 h6 44. Nf3 Ne4 45. Ned4 Bxd4 46. Nxd4 Qc1+ 47. Qf1 Qb2 48. Nf5 Qe5 49. Ne3 d4 50. Ng4 Qd5 51. f3 Nc5 52. Qa1 h5 53. Nf2 d3 54. Qc3 d2 55. Nd1 h4 56. Qb4 g5 57. f4 Kg8 58. fxg5 Qxg5 59. Qb8+ Kf7 60. Qc7+ Ke6 61. Qb6+ Kd5 62. Qb4 Ne4 63. Qb7+ Ke5 64. Qb5+ Kf6 65. Qc6+ Kf5 66. Qb5+ Kf4 67. Qf1+ Ke5 68. Qb5+ Kd4 69. Qb4+ Kd5 70. Qb7+ Kd4 1/2-1/2

Saitek Corona is performing better than I expected. Still undefeated with 3 draws and 3 wins.

Final Position


[fen]8/1Q6/8/6q1/3kn2p/7P/3p2P1/3N2K1 w - - 0 71[/fen]

Best regards
Nick
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Tibono2
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Post by Tibono2 »

scandien wrote:... My settings are running at 3000 cycles and m'y rating for oldies running on dosbox are far lower than your's ...
Hi all... and 3000 DosBox cycles provide roughly the performance of a 80386 CPU @16Mhz ... such as the Compaq Deskpro 386s. Back to late 80's!
regards, Tibono
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spacious_mind
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Post by spacious_mind »

Tibono2 wrote:
scandien wrote:... My settings are running at 3000 cycles and m'y rating for oldies running on dosbox are far lower than your's ...
Hi all... and 3000 DosBox cycles provide roughly the performance of a 80386 CPU @16Mhz ... such as the Compaq Deskpro 386s. Back to late 80's!
regards, Tibono
Hi Nicolas,

If Tibono's 80386 16MHz is correct at 3000 cycles then:

Chessmaster 2100

Chessmaster 2100 at 3000 cycles analyzes 63509 position in 30 seconds fixed time or 2117 positions per second.

Chessmaster 2100 at 100% cycles analyzes on my computer 1,329,083 positions in 30 seconds or 44,303 positions per second.

Therefore Chessmaster 2100 runs at a speed of approximately 80386-335 MHz or the equivalent of a Motorola 68060 with 30.7 MHz.

The Atari ST Emulator playing in this League is set at 68060-32 MHz therefore the Atari ST Emulator is just a little faster than DOSBox.

I had previously mentioned that I thought the Amiga Emulator was running at 68060 with 50-66 MHz but when looking at it more closely, it seems that I was wrong because Chessmaster 2100 analyzes 7,249,798 positions in 30 seconds on my computer or 241.660 positions per second. This is a lot faster than either Dosbox or Atari ST Emulator. It seems that with WinUAE on my computer I can reach a speed of 80386-1826 MHz (1.8 GHz) or Motorla 68060 with 167 MHz.

Therefore Amiga is playing in this League at Motorola 68060-167 MHz.

Since this League is intended to allow DosBox to play at its fastest possible as well as Amiga and ST in their Emulators, I had also tested Ed Schroeder's Rebel 9 configuration. He has it set up at almost 100%. Therefore I tested Rebel 9 at both 3000 cycles and 100%.

At 3000 Cycles or 80386-16 MHz Rebel 9 searches 25,487 positions in 30 seconds or 849.6 per second. At 100% Rebel 9 searches 3,496,661 positions in 30 seconds or 116,555 positions per second. Therefore at full speed Rebel 9 plays at 80386-2195 MHz or Motorola 68060-201 MHz. Therefore Rebel 9 in Dosbox seems to process a little faster than WinUAE with Chessmaster 2100. But Rebel 9 does search less positions per second than WinUAE 68060 Chessmaster 2100.

Just for your FYI Chessmaster 2100 playing at Amiga 500 Motorola 68000-7.16 MHz speed looks at 2525 positions in 30 seconds fixed time or 84 positions per second.

Therefore in conclusion in order to realistically compare Ed Schroeder's Rebel's against the other DOS programs I think you have to really let them all play at 100% speed.

ps... another way to do it is to maybe set up all the programs to 400,000 or 410,000 cycles and see how that performs. I just tried 410,000 cycles with Rebel 9 and it achieved 4,869,150 positions which is 39% more positions than at 100% but it plays sluggish so maybe not as good as 100%

Another PS at 300,000 Cycles Rebel 9 played 3,587,061 which is quite close to the 100% setting with my computer. So 300,000 cycles is another option.


Best regards
Nick
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spacious_mind
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Post by spacious_mind »

I just tried DOSBox Chessmaster 2100 at 300,000 cycles and it doesn't really work well, It did however achieve 4,822,000 positions searched which is nearly 3 times as many positions searched than at the 100% setting. But the clock takes 3 times as long to move its counter. Therefore setting cycles is not as good as the 100% setting if you are trying to get the best performance from all programs. 100% setting is the way to go. If you divide the 4,822,000 by 3 to allow for its slow count, you will get back to being close to the 1,329,083 it played at the 100% setting. The 100% setting allows all the programs to use their internal clocks to work correctly.

Best regards
Nick
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spacious_mind
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Post by spacious_mind »

Here is another completed game.

[Event "Major Swiss Comp. Chess League - Div. 4"]
[Site "Alabama"]
[Date "2017"]
[Round "6"]
[White "AT68060-32 CC2175, 30S."]
[Black "AM68060 CM2100, 30S."]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2112"]
[BlackElo "2039"]
[Annotator "Spacious-Mind"]
[PlyCount "74"]
[EventDate "2017"]
[EventType "swiss (rapid)"]
[EventRounds "12"]
[EventCountry "USA"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxb4 {AT68060-32 CC2175 out of book} 7. axb4 {AM68060 CM2100 out of book} Bxb4 8. Bd2 Ne7 9. Nb5 Bxd2+ 10. Qxd2 O-O 11. Rxa7 Rxa7 12. Nxa7 Qb6 13. Nb5 Nd7 14. Nf3 f6 15. exf6 Nxf6 16. Bd3 Ne4 17. Qb4 Nc6 18. Qb2 e5 19. O-O exd4 20. Rb1 Qc5 21. Bxe4 dxe4 22. Nfxd4 Be6 23. c3 Bd5 24. Nc7 Nxd4 25. Nxd5 Nf3+ 26. gxf3 Qxd5 27. fxe4 Qxe4 28. Qxb7 Qg6+ 29. Kh1 Qc2 30. Qb3+ Qxb3 31. Rxb3 Rxf2 32. Rb8+ Kf7 33. Rb7+ Kf6 34. Rb6+ Ke5 35. Rb7 Kf6 36. Rb6+ Ke5 37. Rb7 Kf6 {Draw by 3x repetition} 1/2-1/2

Final Position

[fen]8/1R4pp/5k2/8/8/2P5/5r1P/7K w - - 0 38[/fen]

Best regards
Nick
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