The Chess Variant Pages



Enter Your Reply

The Comment You're Replying To
George Duke wrote on 2017-03-01 UTC

White to Mate in 4. Since Black Queen is on white square, the Black Queen and King have already moved, and it means Black Pawns also have moved. So the present position started from the other side of the board! The board is actually left to right h to a, and up to down 1 to 8. (Dudeney and later Martin Gardner do this problem without the algebraic labelling.) Then White's Mate starts with 1 Nb8-d7. If 1 ...g1-h3, the mate is in two more moves. If 1 ...g1-f3, the mate is in three more moves. In the latter delay of the mate by one move, 2 N d7-c5 N f3-e5 3 Qxe5 4 N c5-d3 #.


Edit Form

Comment on the page Upside-Down Chess

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.