HIARCS Chess Forums Forum Index HIARCS Chess Forums
World Championship winning computer chess software program & downloads for chess database, analysis and play on PC, Mac and iPhone
 
 QuestionsQuestions   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Private MessagesPrivate Messages   Log inLog in 

Radio Shack matches
Goto page Previous  1, 2
 
Post new topic   Reply to topic    HIARCS Chess Forums Forum Index -> Tournament Results & Games
View previous topic :: View next topic  
Author
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Sat Mar 26, 2016 2:54 am    Post subject: Reply with quote

RS ChessMaster defeats RS Mega 2050X 4.5-1.5. Same result as RS MasterChess 2200X vs. RS Mega 2050X, but most of the victories were very tense, endgame struggles. I didn't see the kind of tactical dominance the RS MasterChess 2200X showed, so I'm going to put RS ChessMaster below the RS MasterChess 2200X.

Here is my list so far, ordered strongest to least strong:

RS MasterChess 2200X
RS ChessMaster
RS Mega 2050X
RS 1850
RS 1650 Fast Response

That's it for my Radio Shack units, until my RS 1900L arrives. I think next I'm going to start testing my Excalibur units. I have the Grandmaster, the King Arthur, and the Chess Station.
Back to top
View user's profile Send private message
7Chessfan7
Member


Joined: 14 Feb 2014
Posts: 285

PostPosted: Sat Mar 26, 2016 2:03 pm    Post subject: Excalibur Electronics Chess Computers. Reply with quote

I used to have an Excalibur Ivan chess computer and an Excalibur Alexandra chess computer. The thing I did not like about the Ivan chess computer is that it makes really annoying, snide remarks after it makes its' moves and when you start the chess computer it has an annoying sound effect of clashing swords. Of course you can turn the sound effects and Ivan's comments off on the chess computer, vut Excalibur Electronics should have made that chess computer without those two bothersome features.
Back to top
View user's profile Send private message
7Chessfan7
Member


Joined: 14 Feb 2014
Posts: 285

PostPosted: Sat Mar 26, 2016 2:05 pm    Post subject: Excalibur Electronics Chess Computers. Reply with quote

I misspelled the word ''but'' as ''vut'' in my previous posted comment.
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Mon Mar 28, 2016 1:04 am    Post subject: Reply with quote

Excalibur Chess Station defeats RS 1650 Fast Response 4.0-2.0, so I'm going to place Chess Station between RS 1650 & RS 1850. My list, so far, of strongest to weakest:

RS Master Chess 2200X
RS ChessMaster
RS Mega 2050X
RS 1850
Excalibur Chess Station
RS 1650 Fast Response.

My RS 1900L has arrived, so now I'm going to match it up against the RS 1850. Should be a fun match.
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Wed Mar 30, 2016 3:39 pm    Post subject: Reply with quote

Currently testing the RS 1900L against the RS 1850. After the third game the RS 1850 leads 2.0-1.0, but this last game it almost let the game slip into a draw in a pure K+R vs. K endgame. The RS 1850 made at least ten useless Rook moves before it finally stumbled into the right idea. That's why I always play to checkmate in these games, to make sure the computer can actually accomplish the mate. I guess the RS 1850 has no endgame tablebases.
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Thu Mar 31, 2016 3:59 am    Post subject: Game 5 of RS 1900L vs. RS 1850 Reply with quote

I haven't posted a game yet, so I thought I'd start. This will be good practice for me for when I get to the knockout matches. This game was interesting for a few reasons. First, after 2...g6, RS 1900L suddenly announced it didn't know any more book for this. WHAT? They didn't even give the poor computer knowledge of the Kings Indian Defense? Well, in any event, RS 1900L started computing, and managed to get in six moves of known KID line. RS 1850 got a cramped position, and with the poor 12...Qd7 let its Bishop get trapped. RS 1900L did a good job of holding the material advantage and converting the win, with a pretty tactical shot at move 34.

Match is now tied 2.5-2.5. Analysis courtesy of Fritz 15.

White: Radio Shack 1900L
Black: Radio Shack 1850
30 sec/move
[Fritz 15 (10m)]

[E90: King's Indian: Classical: Early deviations and 6 h3]

1.c4 Nf6 2.d4 g6 3.Nf3 d6 4.Nc3 Bg7 5.e4 0–0 6.Bd3 Bg4 [last book move]

7.0–0 [Black has a cramped position]

7...Nc6 8.Be3 Nb4 [White has a very active position]

[8...e5 9.d5 Nd4 10.Be2 Nxe2+ 11.Qxe2 Nxe4 12.Nxe4=]

9.Bg5 [9.Be2!?² is worth looking at]

9...Nxd3= 10.Qxd3 h6 11.Bxf6 exf6 12.Nd2 [Black has a cramped position]

12...Qd7 [¹12...Be6= and Black has air to breath]

13.f3± Bh5 14.g4 Bxg4 15.fxg4 Qxg4+ 16.Qg3 f5 17.d5 Bxc3 [17...Qxg3+ 18.hxg3 fxe4 19.Ndxe4±]

18.bxc3 Qxg3+ 19.hxg3 fxe4 20.Nxe4 f5 21.Nd2 Rae8 22.Rae1 Kf7 23.Kg2 Re5 [23...Rxe1!? 24.Rxe1 Re8 25.Rxe8 Kxe8±]

24.Nf3+– Re7 25.Rxe7+ Kxe7 26.Re1+ Kd7 [26...Kf7 27.Re6+–]

27.Re6 Re8 28.Rxg6 Re2+ 29.Kf1 Rxa2 [29...Re3 30.Rg7+ Kc8 31.Nd4 Rxc3 32.Rxc7+ Kxc7 33.Nb5+ Kb6 34.Nxc3+–]

30.Rxh6 [¹30.Nd4 keeps an even firmer grip 30...a6 31.Rxh6+–]

30...Rc2 31.Rh7+ Kc8 32.Nd4 Rc1+?? [Black crumbles in face of a dire situation]

[¹32...Rxc3 33.Rh4 b6+–]

33.Ke2 Rxc3 [33...Rg1 is not much help 34.Nxf5 Rg2+ 35.Kd3+–]

34.Rxc7+!! [Deflection: d6]

34...Kxc7 35.Nb5+ Kb6 [35...Kd8 doesn't change the outcome of the game 36.Nxc3 Ke7 37.Ke3+–]

36.Nxc3 Kc5 [36...a6 is the last straw 37.Kd3 Kc7+–]

37.Kd3 a6 [37...b5 desperation 38.Nxb5 a5+–]

38.Na4+ Kb4 39.c5! [decapitation]

39...Kxa4 [39...dxc5 40.d6 Passed pawn]

40.cxd6 a5 [40...b5 doesn't get the cat off the tree 41.d7 f4 42.gxf4 Kb4 43.d8Q Kc5 44.Qd7 Kb4 45.Qd6+ Kb3 46.Qc5 a5 47.Qxb5+ Ka2 48.Kc3 Ka3 49.Qxa5#]

41.d7 Kb5 [41...f4 does not help much 42.d8Q Kb5 43.Qc7 Ka6 44.gxf4 Ka7 45.Kd4 Ka6 46.d6 b6 47.Kd5 a4 48.Kc6 b5 49.Qb6#]

42.d8Q a4 [42...f4 cannot undo what has already been done 43.Qc7 Ka6 44.gxf4 Ka7 45.d6 Ka6 46.d7 Kb5 47.Qxb7+ Ka4 48.Kc3 Ka3 49.Qb3#]

43.d6 [43.Qc8 b6 44.Qc6+ Ka6 45.d6 Ka7 46.d7 a3 47.d8Q b5 48.Qda8#]

43...a3 44.d7 a2 45.Qa8 f4 [45...a1Q does not improve anything 46.Qxa1 Kc6 47.d8Q b5 48.Qaf6+ Kb7 49.Qfb6#]

46.d8Q Kc6 [46...a1Q doesn't get the bull off the ice 47.Qxb7+ Kc5 48.Qdc7#]

47.Qac8+ Kb5 48.Qc4#

1–0
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Fri Apr 01, 2016 3:04 am    Post subject: Reply with quote

RS 1850 wins the match 3.5-2.5. So my updated list, strongest to weakest:

RS Master Chess 2200X
RS ChessMaster
RS Mega 2050X
RS 1850
RS 1900L
Excalibur Chess Station
RS 1650 Fast Response

Next up to test is my Excalibur King Arthur.
Back to top
View user's profile Send private message
picarito
Member


Joined: 02 Aug 2007
Posts: 6

PostPosted: Sun Apr 03, 2016 2:28 am    Post subject: about RS 1850 and RS 1900L Reply with quote

Hello,

I think RS 1900L is stronger than RS 1850, are needed a minimum of 10 games to find the difference of the playing strength between two chess computers,

regards
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Mon Apr 04, 2016 3:47 pm    Post subject: Reply with quote

I understand that six games is not nearly enough to firmly establish whether one unit is the stronger one. I'm really just doing these initial tests to get a very rough idea of their relative strength for the purposes of seeding them for a nice tournament with many more games. I'm considering 16 games for the quarterfinals, 20 games for the semifinals, and 24 for the Championship. This should be a much better barometer.

Also, these tests are helping me get good at actually playing all the units, and learning how to set the various options, levels, etc.
Back to top
View user's profile Send private message
7Chessfan7
Member


Joined: 14 Feb 2014
Posts: 285

PostPosted: Mon Apr 18, 2016 1:53 am    Post subject: Radio Shack Chess Computers. Reply with quote

An interesting matchup would be RS Chess Champion 2150 vs. RS Master 2200X. I don't doubt that RS Master 2200X is significantly stronger than RS Chess Champion 2150 but it would still be an interesting match.
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Sat Apr 23, 2016 3:00 am    Post subject: Reply with quote

I'm going to skip ahead to my knockout tournament. I'm going to be testing my 12 dedicated chess computers. Since I have twelve, I'm going to give the top 4 a bye into the Round 2 (Quarterfinals), so during Round 1 I'm going to conduct the matches for seeds 5 through 12. Round 1 will be best of 12. The quarterfinals will be best of 16, the semi-finals will be best of 20, and the final will be best of 24. All games will be on a setting approximating one minute/move, with pondering enabled where possible.

Here's how I have my computers seeded:

Novag Citrine
Excalibur Grandmaster
RS Master Chess 2200X
Mephisto Advanced Travel Chess
RS Chess Master
RS Mega Chess 2050X
RS 1900L
RS 1850
Excalibur LCD Express
Excalibur Chess Station
Excalibur King Arthur
RS 1650 Fast Response

First up will be 5. RS Chess Master vs. 12. Radio Shack 1650 Fast Response.
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Sat Apr 23, 2016 1:36 pm    Post subject: Reply with quote

Game one goes to the RS Chess Master. The RS 1650 played some bizarre opening moves, and fairly soon dropped a pawn. After this, it seemed to tighten up and play solid chess, until a horrendous decision at move 40 which cost it the game. The RS Chess Master did a nice job of mopping up after this mistake.

[Event "Dedicated Tournament"]
[Site "KITCHENLAPTOP"]
[Date "2016.04.22"]
[Round "1"]
[White "RS 1650 Fast Response"]
[Black "RS Chess Master"]
[Result "0-1"]
[BlackElo "1800"]
[ECO "A34"]
[Opening "English"]
[Variation "Symmetrical, 2...Nf6"]
[WhiteElo "1200"]
[TimeControl "60 sec/mov"]


1. c4 c5 2. Nc3 Nf6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd3 Ne5 6. Qd4 Nc6 7. Qd1 g6
8. Nf3 Bg7 9. a4 O-O 10. h4 b6 11. e4 Bb7 12. Bf4 Rc8 13. Be2 Nb4 14. Qb3
Na6 15. Qc2 Nc5 16. e5 Ng4 17. O-O Ne6 18. g3 Bxf3 19. Bxf3 Nd4 20. Qd3
Nxe5 21. Bxe5 Nxf3+ 22. Qxf3 Bxe5 23. Qe3 Bxc3 24. Qxc3 d5 25. b3 d4 26.
Qd3 e5 27. f4 f6 28. fxe5 fxe5 29. Rxf8+ Kxf8 30. Rf1+ Kg7 31. Qe4 Qc7 32.
Kg2 a6 33. Re1 Re8 34. Rf1 Rd8 35. Re1 Kf6 36. Rf1+ Ke6 37. Qg4+ Kd6 38.
Qe4 Kc5 39. Re1 Kb4 40. Qxe5 Qxe5 41. Rxe5 d3 42. Re6 d2 43. Rxb6+ Ka5 44.
b4+ Kxb6 45. c5+ Kc6 46. b5+ Kxc5 47. bxa6 d1=Q 48. a5 Rd2+ 49. Kh3 Qf1+
50. Kg4 Qf5# 0-1
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Sun Apr 24, 2016 1:59 pm    Post subject: Reply with quote

Wow. This was unexpected. RS 1650 won game two in this match. RS Chess Master managed to get itself into a horrible position early on, leaving its pieces in disarray and hemmed in. RS1650 did a nice job of capitalizing on this, and converted the win. At one point very early on, before move 15, even though the material was even, Stockfish 7 was giving an advantage of over 5.5 due to the position!

[Event "Dedicated Chess Tournament"]
[Site "KITCHENLAPTOP"]
[Date "2016.04.23"]
[Round "1"]
[White "RS Chess Master"]
[Black "RS 1650 Fast Response"]
[Result "0-1"]
[BlackElo "1200"]
[ECO "A09"]
[Opening "Reti Opening"]
[Time "18:16:18"]
[Variation "Advance Variation, 3.g3 Nc6"]
[WhiteElo "1800"]
[TimeControl "900"]
[Termination "normal"]
[PlyCount "136"]


1. Nf3 d5 2. c4 d4 3. g3 Nc6 4. Bg2 d3 5. Nc3 dxe2 6. Nxe2 e5 7. Qa4 Bd7 8. Qb5 Bd6 9. Qb3
e4 10. Nfg1 Nf6 11. h3 Nb4 12. Nf4 g5 13. Nfe2 O-O 14. Kf1 Bc5 15. f4 gxf4
16. Nxf4 a5 17. a3 a4 18. Qd1 Nc6 19. Nge2 Nd4 20. Nxd4 Bxd4 21. d3 Bc6 22.
dxe4 Nxe4 23. Bxe4 Bxe4 24. Rh2 Qf6 25. Rd2 Rfd8 26. Qg4+ Kh8 27. Qe2 Re8
28. Qh5 Rg8 29. Qh4 Qxh4 30. gxh4 Rg1+ 31. Ke2 c5 32. Rd1 Bf3+ 33. Kxf3
Rxd1 34. Ke2 Rg1 35. Kd3 Rg3+ 36. Ke4 Rb3 37. Kf5 Bxb2 38. Bxb2+ Rxb2 39.
Rd1 Rc2 40. Rd7 Rxc4 41. Rxb7 Rc3 42. Rc7 Rb8 43. h5 Kg7 44. Ne6+ Kg8 45.
Ng5 Rxa3 46. Rxc5 h6 47. Ne4 Rxh3 48. Kg4 Rd3 49. Rc6 Kg7 50. Rc3 Rxc3 51.
Nxc3 Rb4+ 52. Kf5 Rh4 53. Ne2 Rxh5+ 54. Kf4 a3 55. Nc1 Rh2 56. Kf5 a2 57.
Nxa2 Rxa2 58. Ke5 Rd2 59. Kf5 Re2 60. Kg4 Rf2 61. Kg3 Rf5 62. Kg4 Kg6 63.
Kg3 Kh5 64. Kh3 Rg5 65. Kh2 Kh4 66. Kh1 Kg3 67. Kg1 Rf5 68. Kh1 Rf1# 0-1
Back to top
View user's profile Send private message
TracySMiller
Member


Joined: 13 Mar 2016
Posts: 26

PostPosted: Tue Apr 26, 2016 1:07 am    Post subject: Reply with quote

Well this was quite the game! RS 1650 made a terrible blunder with 12. Kd2??, a move I think no human would even consider. In addition to moving the King closer to the enemy forces, it has the fatal flaw of cutting off its Queen's only escape route. RS Chess Master doesn't miss this, of course, and RS 1650 is forced to part with its Knight to save its Queen.

Then, things get interesting. With 15...exd4, RS Chess Master seems unafraid of the Queen check in the corner. RS 1650 makes the obvious Queen move, but in doing so misses a nice tactical shot: 16. Nf6+! If the pawn takes the Knight, RS 1650 can get a draw with perpetual checks in the corner. If RS Chess Master wants to try to maintain the material edge and try for the win, it must take the Knight with its Queen, leaving the Rook unguarded. After QxR, black can retreat its Queen and defend, and after the smoke clears, black is still ahead about 1.3 (per Stockfish 7), but in an unbalanced position that is in no way an easy win for machines of this caliber.

But...RS 1650 didn't see the tactical shot, and made the obvious Queen check, black defended properly, and the white Queen gets stuck in the corner while black moves in for the kill. RS Chess Master mates without even having moved its Queen's Knight or Queen's Rook.

RS Chess Master leads the match 2.0-1.0.

[Event "Dedicated Chess Tournament"]
[Site "KITCHENLAPTOP"]
[Date "2016.04.25"]
[Round "1"]
[White "RS 1650 Fast Response"]
[Black "RS Chess Master"]
[Result "0-1"]
[BlackElo "1800"]
[ECO "C42"]
[Opening "Russian Game"]
[Variation "Classical, 5...d5"]
[WhiteElo "1200"]
[TimeControl "60 sec/move"]


1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Nc3 Bb4 7. Bd2 Nxd2
8. Qxd2 O-O 9. Bd3 Re8+ 10. Kd1 Bg4 11. Qf4 h5 12. Kd2 Bd6 13. Ne5 f6 14.
Nxd5 fxe5 15. Qe4 exd4 16. Qh7+ Kf8 17. h4 c6 18. f3 Be6 19. Qh8+ Bg8 20.
Bg6 cxd5 21. Bxe8 Qxe8 22. Rae1 Bf4+ 23. Kd1 Qg6 24. Re2 d3 25. Rf2 dxc2+
26. Rxc2 Qd3+ 27. Ke1 Qxc2 28. Rg1 Bg3+ 29. Kf1 Qd3# 0-1
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    HIARCS Chess Forums Forum Index -> Tournament Results & Games All times are GMT
Goto page Previous  1, 2
Page 2 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group
Protected by Anti-Spam ACP