You are on the backup site for Any posts, moves, or other changes you make here will not be permanent, because the pages and database from the main site will be backed up here every midnight EST. Additionally, things may not be working right, because this site is also a testbed for newer system software. So, if you are not here to test, develop, or merely read this site, you may want to change .org to .com in the navigation bar and go to the main site.

The Chess Variant Pages


Jens Baek Nielsen invented this game, and wrote about it in Issue 67/68 (December 1994) of ETEROSCACCO, the periodical of AISE. The rules were shaped in games with, and improved by suggestions of Torben Osted and Ian G. Richardson.


The usual rules of chess apply, with the following modifications:

Sample game

More details on this variant can be found in Issue 67/68 of Eteroscacco. Here is the shortest of the sample games given there. White is Jens Baek Nielsen, black is Ian G. Richardson.

1. c4, e5
2. g4, Bc5
3. B g2?, B x f2 + !
4. K x f2, Q h4 + !!
5. N f3 x h4 (doublemove), N f6 +
6. K f1, N x g4 + (after 6. Kf3, N c6 d4 (doublemove) follows)
7. K g1, N c6 d4 (doublemove)


The inventor wrote about his game:

... this chess variant has a lot of active and interesting play - the twiknight influences the game all the way through.
It has good speed, and in my point of view it has an advantage to progressive variants, where series of 6-7 moves or more are so hard to calculate that it is a little random who wins the game.

Indeed, the sample games show that the knights have a formidable attack on the enemy king.

Written by: Hans Bodlaender.
WWW page created: February 13, 1996. Last modified: December 11, 1996.