Check out Grant Acedrex, our featured variant for April, 2024.

Enter Your Reply

The Comment You're Replying To
Sam Trenholme wrote on Tue, Sep 29, 2009 02:18 PM UTC:
OK, I've been working on seeing how quickly I can get Joker80 to pump out games on my system. At 40 moves in 1 second, only about 10% of games are finished (end in a Checkmate or draw by repetition). That number shoots up to 50% for 40 moves in 2 seconds, 75% for 40 moves in 3 seconds, and stabilizes to around 90% by 40 moves in 4 seconds (it's still around 90% at 40 moves in 10 seconds; we only get up to a 100% yield when we play 40 moves in 60 seconds).

So, I started my computer making a bunch of 40-moves-in-4-second games last night. There's another issue: About once every 1,000 games, Joker80 crashes, and this stops WinBoard from generating games unattended. I'll see if removing the offending pop-up from WinBoard allows Winboard to restart and continue making games when Joker80 crashes. It may also be necessary to suppress the 'send bug report to Microsoft' window.

The nice thing about games this quickly is that I already have +/- 2% numbers for White's wins with the 1. e4 f5 2. exf5 Nb6 Schoolbook opening:

Win: 45.3718% Loss: 42.868% draw 11.7602% score 51.2519% Total 1318

(Win: Number of White wins. Loss: Number of White losses. Draw: Number of draws. Score: White wins + draws/2 Total: Number of games played)

Compare this to the +/- 5% numbers I got from 100 40-moves-in-60-second games for the same Schoolbook opening yesterday:

Win: 46% Loss: 45% draw 9% score 50.5% Total 100

As we can see, the numbers are almost the same.


Edit Form

Comment on the page Schoolbook

Conduct Guidelines
This is a Chess variants website, not a general forum.
Please limit your comments to Chess variants or the operation of this site.
Keep this website a safe space for Chess variant hobbyists of all stripes.
Because we want people to feel comfortable here no matter what their political or religious beliefs might be, we ask you to avoid discussing politics, religion, or other controversial subjects here. No matter how passionately you feel about any of these subjects, just take it someplace else.
Quick Markdown Guide

By default, new comments may be entered as Markdown, simple markup syntax designed to be readable and not look like markup. Comments stored as Markdown will be converted to HTML by Parsedown before displaying them. This follows the Github Flavored Markdown Spec with support for Markdown Extra. For a good overview of Markdown in general, check out the Markdown Guide. Here is a quick comparison of some commonly used Markdown with the rendered result:

Top level header: <H1>

Block quote

Second paragraph in block quote

First Paragraph of response. Italics, bold, and bold italics.

Second Paragraph after blank line. Here is some HTML code mixed in with the Markdown, and here is the same <U>HTML code</U> enclosed by backticks.

Secondary Header: <H2>

  • Unordered list item
  • Second unordered list item
  • New unordered list
    • Nested list item

Third Level header <H3>

  1. An ordered list item.
  2. A second ordered list item with the same number.
  3. A third ordered list item.
Here is some preformatted text.
  This line begins with some indentation.
    This begins with even more indentation.
And this line has no indentation.

Alt text for a graphic image

A definition list
A list of terms, each with one or more definitions following it.
An HTML construct using the tags <DL>, <DT> and <DD>.
A term
Its definition after a colon.
A second definition.
A third definition.
Another term following a blank line
The definition of that term.