Claudia

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[ Claudia Antonia [1] Claudia,

an UCI compliant open source chess engine by Antonio Garro, written in C, first released in March 2014 [2] under a permissive BSD license. Claudia [3] is named after Claude E. Shannon [4].

Features#

Board Representation

• 0x88 Board
• Bitboards for Pawns

Search

• Negamax Alpha-Beta
• Principal Variation Search
• Iterative Deepening
• Aspiration Windows
• Transposition Table

Zobrist Hashing

• Null Move Pruning
• Quiescence Search
• Check Extensions
• Static Exchange Evaluation
• Killer Heuristic

Evaluation

• Material
• Mobility
• King Safety
• Pawn Structure
• Tapered Evaluation
• Lazy Evaluation

Misc#

• Pondering
• PolyGlot Opening Book

Forum Posts#

• Claudia (UCI-program) by Antonio Garro by Norbert Raimund Leisner, CCC, March 09, 2014
• Claudia v. 02 UCI engine by Jose Mº Velasco, CCC, May 23, 2014
• Claudia updated to 0.51 by Günther Simon, CCC, October 31, 2016

External Links#

Chess Engine#

• GitHub - antoniogarro/Claudia: Claudia UCI chess engine
• Claudia 0.5 in CCRL Blitz

Misc#

• Claudia from Wikipedia
• Claudia (given name) from Wikipedia
• Claudio from Wikipedia
• Claude (given name) from Wikipedia
• Claudia Amura from Wikipedia
• Claudia Munoz – Campfire Chess
• The Claudia Quintet - Nice Tune, April 19, 2020, YouTube Video

feat. Chris Speed, Matt Moran, Red Wierenga, Drew Gress, and John Hollenbeck

References#

1. ↑ Portrait of Claudia Antonia, Domvs Romana, Photo by Marie-Lan Nguyen, May 07, 2012, Wikimedia Commons
2. ↑ Claudia (UCI-program) by Antonio Garro by Norbert Raimund Leisner, CCC, March 09, 2014
3. ↑ Claudia - Wikipedia.it
4. ↑ Claudia/README.md at master · antoniogarro/Claudia · GitHub

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