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

[ Help | Earliest Comments | Latest Comments ]
[ List All Subjects of Discussion | Create New Subject of Discussion ]
[ List Earliest Comments Only For Pages | Games | Rated Pages | Rated Games | Subjects of Discussion ]

Single Comment

Schoolbook. 8x10 chess with the rook + knight and bishop + knight pieces added. (10x8, Cells: 80) [All Comments] [Add Comment or Rating]
Sam Trenholme wrote on 2009-10-08 UTC
As an aside, I have made a program to find pretty mates within the thousands of games I’ve been having my computer play to research the Schoolbook opening. What the program does is look at games; when there is a position where one side thought they were even or ahead but the other side suddenly found a mating combination, it notes the game.

These types of positions are actually quite rare; in the 5,000 games or so I have had my computer play to research Schoolbook, only 24 mates of this nature were found; a mate like this happens about once every 200 games.

These mates (in addition to the script that data-mines the .pgn files to find these kinds of positions) can be found here: