Home * Engines * MadChess

		MadChess, an UCI compliant open source chess engine by Erik Madsen, written in C# to run under the Windows .NET framework. It was first released under the GNU General Public License Version 3 as successor of Erik's former C# engine RumbleMinze in October 2012 [1], and features adjustable playing strength with improved algorithms since MadChess 1.4 [2] [3]. MadChess 2.1, released in February 2017 is using .NET Core, Microsoft’s cross-platform free and open-source managed software framework to support not only Windows, but Linux, and Mac [4] [5].
Me Worry? [6]

Description

Move Generation

MadChess applies an incremental move generation, using the C# yield statement ^{[7] [8] [9] [10] [11]} using incrementally updated list of attackers for any rank, file, diagonal, or anti-diagonal.

Search

MadChess performs a principal variation search along with transposition table, killer and history heuristic, null move pruning and late move reductions inside an iterative deepening framework with aspiration. It eliminates all reductions and lazy evaluation along the principal variation.

Evaluation

The evaluation might be lazy with respect to bounds, and otherwise uses a tapered evaluation on game phase between speculative computed middlegame and endgame scores, considering piece-square tables, mobility, pawn structure, and king safety and various piece evaluation terms.

See also

• Disease
• Madness Schach
• Matchess
• RumbleMinze

Forum Posts

2012

• MadChess 1.0 Released (C# .NET Engine) by Erik Madsen, CCC, October 25, 2012
• Score Inaccuracy: An Engine Weakening Algorithm by Erik Madsen, CCC, October 31, 2012

2013

• MadChess 1.1 Released by Erik Madsen, CCC, January 06, 2013
• MadChess 1.2 Released by Erik Madsen, CCC, March 09, 2013
• MadChess 1.3 Released by Erik Madsen, CCC, September 28, 2013

2014

• MadChess UCI_LimitStrength Algorithm by Erik Madsen, CCC, April 12, 2014
• MadChess 1.4 Released by Erik Madsen, CCC, April 12, 2014
• MadChess With Odds Versus Elite Engines by Erik Madsen, CCC, September 11, 2014
• MadChess 2.0 Development by Erik Madsen, CCC, November 12, 2014

2015 ...

• MadChess 2.0 Released by Erik Madsen, CCC, October 12, 2015
• MadChess 2.1 Released - Supports Windows, Linux, Mac by Erik Madsen, CCC, February 23, 2017
• MadChess 2.2 Released by Erik Madsen, CCC, July 04, 2017

External Links

Chess Engine

• MadChess
  MadChess - User Guide
• MadChess in CCRL 40/40

Misc

• MAD from Wikipedia
• Mad (magazine) from Wikipedia
• Insanity from Wikipedia

References

1. ^ MadChess 1.0 Released (C# .NET Engine) by Erik Madsen, CCC, October 25, 2012
2. ^ MadChess UCI_LimitStrength Algorithm by Erik Madsen, CCC, April 12, 2014
3. ^ MadChess - User Guide
4. ^ MadChess 2.1 Released – MadChess, February 22, 2017
5. ^ MadChess 2.1 Released - Supports Windows, Linux, Mac by Erik Madsen, CCC, February 23, 2017
6. ^ A postcard with the public domain "me worry?" face that later inspired Mad magazine's Alfred E. Neuman, ca. 1910s, Alfred E. Neuman from Wikipedia
7. ^ Re: Question About CPP-C#, Performance, and Square Representation by Erik Madsen, CCC, October 03, 2012
8. ^ yield - MSDN C# Reference
9. ^ Behind the scenes of the C# yield keyword | Struggles by Lars Corneliussen, June 9, 2008
10. ^ Generator (computer programming) from Wikipedia
11. ^ Coroutine from Wikipedia

What links here?

Up one level