Chess Player at Large
John Coffey's Blogs and Chess Lessons
2023-02-04
Draw by resignation?
2023-02-03
2023-01-28
Over The Board Mouse Slip?!
The Woodpecker Method
Before Michael De La Maza published his book "Rapid Chess Improvement", he wrote an article by the same name. Before he published this article, he sent it to me to get my suggestions, because I had a website since around 1996 that advocated the same idea. I believed in doing a large number of tactical problems repeatedly to build pattern recognition. When I did this myself, I saw my rating go from 1800 to 2000.
I can't guarantee that this is the best way to improve one's chess tactics. For myself, my goal was to be able to see the vast majority of 1, 2, and even 3-move combinations instantly. However, doing new puzzles might also be good.
My website hasn't changed much since I first published it. It is dated. At that time, the Internet (World Wide Web) was relatively new, and most people didn't have access to it. Chess Life gave me an "award" for the website, but there weren't many chess websites at the time.
Testing old chess computers through emulation
In the days before everyone had computers, if you wanted to play chess, your only option was to play with another person. In the late 1970's Fidelity introduced a series of electronic computer chess games. These early models played rather poorly, but I knew people who bought them just to be able to play and practice whenever they wanted. I managed to borrow a few of these so that I could get a feel for how well they played.
Although the early machines did not play well, things started to improve in the 1980s. There was a golden age of dedicated chess computers that went from 1983 to about 1993. In 1984, I purchased the Novag Super Constellation electronic chess game for what I think was $200, which was quite a bit of money in 1984. The U.S. Chess Federation had given it a rating of 2018, which is better than at least 90% of all adult tournament players. Any rating between 2000 and 2199 is considered to be the skill level of "Expert" and a higher rating of 2200 is considered to be "Master."
Although I am currently rated 2016, at the time I bought the
Novag Super Constellation I was rated just a little over 1700. In a few months, I would reach a rating of 1800 which is considered to be "Class A." Nevertheless, what I remember about the Novag Super Constellation is that it played better than me, which is surprising since it only contains an 8-bit processor running at just 4 MHZ. That is not very fast compared to modern 64-bit processors with multiple cores running at gigahertz speeds.
Over time, I bought a couple of better chess-playing computers and I have fond memories of practicing with all of them. I sold all these machines when I got a desktop computer in the mid-'90s, but I kind of regret it because they all were fun to play with it.
This became an issue when I was researching these old chess-playing computers where I saw many online claims that these computers were not as good as the ratings that had been assigned to them. For example, I saw the claim that the Novag Super Constellation was only about 1750 strength, and two other computers that I owned rated 2100 and 2265 were also claimed to be weaker than their advertised ratings. None of these claims match my experience, since all of the computers played better than I did.
I was so curious about this that I wanted to get my hands on one of the old chess computers, assuming that one can be found, however unlikely, and see how it compares to my current chess ability. Fortunately, I found software that allows me to emulate dozens of old chess computers on my Windows PC.
In my first game against the emulated Novag Super Constellation on level 1, the lowest level, I was able to win by only the slimmest of margins. I tried the same thing on the Fidelity Designer 2100, a slightly better machine, and I lost. I have no doubt that the other computer I owned, the stronger Fidelity Designer 2265, would stomp me like it used to when I played it 30 years ago. I will confirm this eventually.
So I tested a variety of chess computers with a somewhat difficult chess problem..
Based upon my testing, this is how long various chess computers take to solve this chess problem...
# | Model | Year | Processor | Speed | ROM | Time | Depth | Nodes/S |
---|---|---|---|---|---|---|---|---|
It is noteworthy that the Super Constellation solved the problem in roughly 2 minutes, which is within tournament time controls. I am disappointed in Chessmaster on the Super Nintendo because it failed to achieve this. It is running on a similar processor, and it is a port of Chessmaster 2000 written by Dave Kittinger, who also wrote the Super Constellation program!
* The second version of the Constellation 3.6 solves this problem on its top two tournament levels, but the first version moves too quickly to see the answer. It can only solve the problem on its infinite level, even though it takes about the same amount of time to see the solution. The second ROM set is based upon the Novag Expert program.
Super Constellation game #1.Chess Game against Novag Super Constellation level 1.
[Date "2023.01.05"]
[Round "?"]
[White "Coffey, John"]
[Black "Novag Super-Constellation lv1"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2016"]
[PlyCount "117"]
[EventDate "2023.01.05"]
1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. d3 d5 6. c4 dxc4 7. dxc4 Qxd1 8.
Rxd1 bxc4 9. Ne5 Bxg2 10. Kxg2 Nbd7 11. Nxc4 Bc5 12. Nc3 O-O 13. Bf4 Nb6 14.
Na5 Nbd5 15. Nxd5 Nxd5 16. Rac1 Nxf4+ 17. gxf4 Bd6 18. e3 g6 19. Nc4 Rfb8 20.
b3 Rd8 21. Nxd6 Rxd6 22. Rxd6 cxd6 23. e4 f5 24. f3 Rf8 25. Kg3 Kg7 26. Rc7+
Rf7 27. Rxf7+ Kxf7 28. Kf2 Kg7 29. Ke3 Kf7 30. Kd4 Kf6 31. e5+ Ke7 32. exd6+
Kxd6 33. b4 h6 34. a4 g5 35. fxg5 hxg5 36. b5 e5+ 37. Kc4 g4 38. fxg4 fxg4 39.
a5 e4 40. Kd4 e3 41. Kxe3 Kc5 42. b6 {??} axb6 43. axb6 Kxb6 44. Kf4 Kc5 45.
Kxg4 Kd4 {???} 46. h4 Ke5 47. Kg5 Ke6 48. Kg6 Ke7 49. Kg7 Ke6 50. h5 Ke7 51. h6
Kd6 52. h7 Ke7 53. h8=Q Ke6 54. Qd8 Kf5 55. Qd4 Ke6 56. Kg6 Ke7 57. Qd5 Ke8 58.
Kf6 Kf8 59. Qd8# 1-0
Novag Super Constellation Level 1
2023-01-13
2023-01-12
2023-01-10
2023-01-06
2022-12-29
Fwd: HUGE CARLSEN NEWS!
From: Bill
2022-12-28
HUGE CARLSEN NEWS!
My Goal: Reaching a 1000 Rating! #chess #shorts
I shouldn't talk since I am an Expert, but this is the kind of combo that takes me a couple of seconds to see.
I believe that it is fairly easy to get to 1300. A person just needs to be able to see most 2-move combos. There might be a few unusual 2-move combos that a 1300 would not see, but being able to see most 2-move combos would make a person 1200 to 1300. I think that being able to see most 3 move combos would make a person 1400 to 1500.
A couple of weeks ago I was proud of myself for seeing a six-move combo in a speed game, but I made the same mistake that many players make where I didn't calculate the next move. After winning my opponent's rook I realized that he could trap my queen. My lower-rated opponent didn't see it, but he could have been winning.
2022-12-20
Stockfish 15.1 - Stockfish
This release also introduces a new convention for the evaluation that is reported by search. An evaluation of +1 is now no longer tied to the value of one pawn, but to the likelihood of winning the game. With a +1 evaluation, Stockfish has now a 50% chance of winning the game against an equally strong opponent. This convention scales down evaluations a bit compared to Stockfish 15 and allows for consistent evaluations in the future."
https://stockfishchess.org/blog/2022/stockfish-15-1/