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		Myrddin, a Chess Engine Communication Protocol aka WinBoard compliant chess engine by John Merlino. Myrddin started its life in 2009 as a 0x88 engine with rudimentary evaluation based on material and piece-square tables [1] , and was converted to bitboards in 2012 with v0.86. Search is basically alpha-beta with generally conservative extensions and reductions. Myrddin's SEE implementation is based on pseudo-code by Andres Valverde [2]. Myrddin 0.87, released in January 2015, features a lazy parallel search using processes and a shared hash table [3], based on an idea from Harm Geert Muller.
Page 1 of Black Book of Carmarthen [4]

Etymology

The program's name is related to its author's last name Merlino, the Italian equivalent of Merlin ^[5] , a legendary figure best known as the wizard featured in the Arthurian legend, derived from the Welsh Myrddin, the name of the bard Myrddin Wyllt.

See also

• Arthurian legend
• Magic
• The King

Forum Posts

2009

• Introducing Myrddin v0.0000001a by John Merlino, CCC, February 24, 2009
• Myrddin v0.80 Alpha 1 release by John Merlino, CCC, May 09, 2009
• Myrddin v0.81 Alpha 2 release by John Merlino, CCC, May 29, 2009
• Myrddin 0.82 release by John Merlino, CCC, September 27, 2009

2010 ...

• Myrddin 0.83 release by John Merlino, CCC, February 23, 2010
• Myrddin 0.84 release by John Merlino, CCC, September 20, 2010
• Myrddin 0.85 release by John Merlino, CCC, May 03, 2011
• Re: Programmers: what's the story behind the name of your engine by John Merlino, CCC, June 21, 2011
• Myrddin 0.86 release by John Merlino, CCC, December 22, 2012
• SMP and pondering by John Merlino, CCC, February 08, 2014 » Parallel Search, Pondering

2015 ...

• Myrddin 0.87 release by John Merlino, CCC, January 25, 2015

External Links

Chess program

• Myrddin by John Merlino, Computer-Chess Wiki by Ron Murawski
• Myrddin from WBEC Ridderkerk
• Myrddin 0.84 32-bit in CCRL 40/40
• Myrddin 0.85 64-bit in CCRL 40/40
• Myrddin 0.86 64-bit in CCRL 40/40

Misc

• Myrddin (disambiguation) from Wikipedia
• Myrddin Wyllt from Wikipedia
• Merlin from Wikipedia
• Mago Merlino from Wikipedia.it (Italian)
• Prophetiae Merlini from Wikipedia
• Myrddin & Merlin: A Guide to the Early Evolution of the Merlin Legend from Arthuriana by Thomas Green
• Theosophy Avalon / Ynys Witrin - The Theosophy Wales King Arthur Pages - Vortigern's Stronghold Dinas Emrys
• Myrddin « Witchful Thinking
• Myrddin Emry by Jeffrey Elric Diehl
• The Myrddin Falcon by Bard Judith
• The Story of Myrddin Wyllt by Elis Gruffudd, 16th Century
• Soft Machine - The Tale of Taliesin, from Softs, 1976, YouTube Video
  Lineup: Roy Babbington, John Etheridge, John Marshall, Karl Jenkins
  

References

1. ^ Introducing Myrddin v0.0000001a by John Merlino, CCC, February 24, 2009
2. ^ Myrddin by John Merlino, Computer-Chess Wiki by Ron Murawski
3. ^ Myrddin 0.87 release by John Merlino, CCC, January 25, 2015
4. ^ Page 1 of John Gwenogvryn Evans' edition (1907) of the Black Book of Carmarthen (1250), being the Ymddiddan (dialogue) between Myrddin and Taliesin
5. ^ Re: Programmers: what's the story behind the name of your engine by John Merlino, CCC, June 21, 2011

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