The Chess Variant Pages
Custom Search



Enter Your Reply

The Comment You're Replying To
Kevin Pacey wrote on 2019-07-20 UTC

On computer chess (or even human) piece valuations, a 'controversial variation of the Nimzo-Indian Defence' (according to Dutch Grandmaster Jan Timman in The Art of Chess Analysis, circa 1980, referring to 5...Nf6-e4 below) that I (as a master-level player) have liked to play as Black over the years just might illustrate an exception to giving a very significant bishop-pair bonus on an 8x8 board to the side possessing it, even when there appears to be no clear reason to make the exception.

The variation in question goes 1.Pd2-d4 Ng6-f6 2.Pc2-c4 Pe7-e6 3.Nb1-c3 Bf8-b4 4.Pe2-e3 Pb7-b6 5.Ng1-e2 Nf6-e4 6.Qd1-c2 Bc8-b7 7.Pa2-a3 Bb4-c3(ch) 8.Ne2-c3 Ne4-c3 9.Qc2-c3 (see diagram below; note that nowadays in my games, some players prefer to give Black the bishop pair instead, by playing 6.Bc1-d2[!] - in either case there are some tiny factors going on in favour of either side, but these are not so easy to articulate, at least in a few words, even for master-level players; also note my 2008 book Encyclopedia of Chess Openings volume E, 4th edition gives the line as definitely slightly better for White ["+="] in either case, but my more modern chess database's human evaulation [i.e. that of 2015's Chess Assistant16] gives White only its usual symbolic edge ["+=/="] as in its more mainline openings' variations, also with the CA16 engine's evaluation as only 0.04 pawns in White's favour, in either case):


Edit Form

Comment on the page Rules of Chess page

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.

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.