Chess

Chess is a game based on the and distributed by Apple as part of macOS.
==Gameplay options==
When first launched, the user is presented with an option to download a 1.2 GB library to enable speech recognition. The user can select a variant of Chess gameplay for new games, including: , , , and . Player options include: humans, the computer, and a remote player via Game Center. For games against the computer, the default computation time is 2 seconds, though this can be modified from a minimum of only 1 move ahead, up to a maximum of 256 seconds.
===Computation capacity===
The computer computation of Chess.app has been known to take up to 98% of CPU bandwidth during the time allocated.Chess uses 98% CPU by acquiesce, Apple Community. 2006-11-01. This has been observed to cause CPU fans to spin up, even on recent models.Loud fans during built-in Chess game, new Macbook Air 2020, Apple Community. 2020-07-10.
==History==
Chess.app dates back to NeXTSTEP 1.0, the predecessor to Mac OS X (now known as macOS) which was originally released in September 1989.NeXTSTEP 1.0 by Nathan Lineback, Toasty Technology. Accessed 2022-10-21. It was adapted for color in OpenStep and open sourced in the process through the .Openstep 4.2 on Linux Virtualbox, Mike's Random Stuff. 2020-12-15.Chess - Chess for GNUstep ported from OPENSTEP, Ubuntu Manpage Repository. 2006-02-09. It was ported to Mac OS X during the early stages of its development in 1999.Mac OS X Developer Preview 1, BetaWiki. Accessed 2022-10-21. When it was released as part of Mac OS X 10.0 in March 2001, it was based on the engine for Unix. Gian-Carlo Pascutto is credited for work dating back to 2000. R. Ancelli & M. Duelli were involved in 2002, and Apple Computer (now Apple Inc.) took over development internally since 2003.Mac OS X 10.0 by Apple OSS Distributions, GitHub. 2021-11-09.Chess by David Pogue, Mac OS X: The Missing Manual, Panther Edition. O'Reilly Media, Inc. 2003-12.
Version 3.0, which was released with OS X 10.8 (Mountain Lion), is based on the open source chess engine, released under the . The source code can be downloaded from the about dialog box of the app.README, Apple Open Source. 2012-07.
==References==
==See also==
*Microchess, the first chess game for the Apple-1 and Apple II series.
==External links==
*Chess User Guide for Mac at Apple Support
**Chess at Apple Open Source
*Play Chess On Your Mac at MacMost Video Tutorials
* at Wikipedia
Category:Apple software
Category:NeXTSTEP software
Category:Mac OS X games
Category:macOS games
Category:1989 games