Albert Bertilsson

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Albert Bertilsson [1] Albert Bertilsson,

a Swedish computer scientist, programmer and consultant/architect on the Microsoft .NET framework. Albert is author of the chess engines #Chess, written entierly in C#, and Sharper written in C++. In December 2003, Albert started a distributed project [2] to calculate perft(11) of the initial position, taking over a week to calculate [3].

Forum Posts#

2003#

February …#

• How many chess programmers earn their living from it, and how? by Albert Bertilsson, CCC, February 11, 2003
• To Uri, about perft speeds by Albert Bertilsson, Winboard Forum, February 14, 2003 » Perft
• Perft 9, confirmed by Sharper too… by Albert Bertilsson, Winboard Forum, February 16, 2003
• Why have a UnMakeMove or UndoMove function (not as stupid as it sounds)? by Albert Bertilsson, CCC, February 24, 2003 » Unmake Move
• First mate in 2, then mate in 3 by Albert Bertilsson, CCC, March 03, 2003 » Checkmate
• Adding knowledge to the evaluation, what am I doing wrong? by Albert Bertilsson, CCC, March 13, 2003
• WACNEW 40% less fails when Sharper get 12x the time by Albert Bertilsson, CCC, March 17, 2003 » Win at Chess
• What’s best low BF or good WAC result? by Albert Bertilsson, CCC, March 18, 2003 » Branching Factor
• Buggy check extensions, back to square one =(. by Albert Bertilsson, CCC, March 20, 2003 » Check Extensions

April …#

• Rules of thumb for strength estimation? by Albert Bertilsson, CCC, April 25, 2003 » Playing Strength
• Problem with extending to maxdepth by Albert Bertilsson, CCC, June 26, 2003 » Extensions
• Improvements in BF makes my MoveGen suck =( by Albert Bertilsson, CCC, June 26, 2003 » Branching Factor, Move Generation
• Program settings (Re: Programmers Should Take A Cue From Chessmaster) by Albert Bertilsson, CCC, July 04, 2003 » Sharper, Piece-Square Tables
• How stable is stable enough for you? by Albert Bertilsson, CCC, July 24, 2003
• Highest perft for initial position? by Albert Bertilsson, CCC, November 07, 2003 » Perft
• Perft(10) verified by Albert Bertilsson, CCC, December 09, 2003
• Distributed perft project by Albert Bertilsson, CCC, December 09, 2003
• Distributed perft, current standings and trends by Albert Bertilsson, CCC, December 12, 2003

2004#

• Newer version of Sharper is available by Albert Bertilsson, Winboard Forum, January 11, 2004
• Improving the endgame of my engine by Albert Bertilsson, CCC, April 08, 2004 » Endgame

External Links#

• Albert’s notes on development and performance
• #Chess ( Wayback Machine)
• Sharper ( Wayback Machine)
• Distributed Perft Project ( Wayback Machine)

References#

1. ↑ Albert’s notes on development and performance
2. ↑ Distributed perft project by Albert Bertilsson, CCC, December 09, 2003
3. ↑ Distributed Perft Project ( Wayback Machine)

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