Leonid Liberman
Home * People * Leonid Liberman
Leonid Liberman,
a Canadian chess programmer and author of LL Chess [1],
famous for posting turbulent mate in N positions in CCC, forcing many engines to "explode" even in quiescence search.
In his publications on computer chess from the mid 90s, hosted by End of the World Production, LLC. [2],
he elaborates on x86 assembly, board representation, piece coding and move generation, mate solving, and point values [3].
Contents
Forum Posts
1999
- nodes per ply by Leonid, CCC, June 10, 1999
- hardware of Cray Blitz by Leonid, CCC, June 13, 1999 » Cray Blitz
- Do you know something about INTEL 64 bits CPU? by Leonid, CCC, June 15, 1999
- How really strong is ChessMaster 6000? by Leonid, CCC, July 03, 1999 » Chessmaster
- Brute force base of good game. True or not true? by Leonid, CCC, September 07, 1999 » Brute-Force
- What is the History table? by Leonid, CCC, September 15, 1999 » History Heuristic
- Please, say in few words what can reduce the "branching factor" by Leonid, CCC, September 19, 1999 » Branching Factor
- number of moves in position by Leonid, CCC, September 19, 1999
- Re: number of moves in position by Leonid, CCC, September 21, 1999
- Do have the Crafty the Assembler written core? by Leonid, CCC, November 01, 1999 » Crafty
- Do you use illigal moves in the ply zero and 1? by Leonid, CCC, November 22, 1999
- What will be the position of Windows in 3, 4 years in the future? by Leonid, CCC, November 29, 1999 » Windows
- What chess projects we have in the States? by Leonid, CCC, December 04, 1999
- How many plies in chess game before hash table have some sense? by Leonid, CCC, December 08, 1999
2000
- What is the q-search? by Leonid, CCC, January 07, 2000 » Quiescence Search
- What is the use of extensions? by Leonid, CCC, January 09, 2000 » Extensions
- Mate in ...? by Leonid, CCC, February 12, 2000
- Branching factor, make me confuse more that ever by Leonid, CCC, April 01, 2000
- What is the average nodes per second for minimax? by Leonid, CCC, June 15, 2000 » Nodes per second
- Is the NPS for minimax devided by NPS in alpha-beta = 5 ? by Leonid, CCC, June 16, 2000
- Is the NPS tend to grow at the end of the game? by Leonid, CCC, July 22, 2000
- How make Fritz execute brute force search? by Leonid, CCC, July 26, 2000 » Fritz
- Junior chess program. Just version of Fritz 5? by Leonid, CCC, July 29, 2000 » Junior
- How do your program search of all plys? Identical way? by Leonid, CCC, August 03, 2000
- Attempt to understand Leonids nomenclature... by Andrew Dados, CCC, August 04, 2000
- Two mate positions to solve by Leonid, CCC, September 02, 2000
- Two mate position to solve by Leonid, CCC, September 06, 2000
2001
January
- What shortest mate that you can find for this position? by Leonid, CCC, January 17, 2001
- If you like to find a mate... by Leonid, CCC, January 18, 2001
- If you want solve one mate... by Leonid, CCC, January 21, 2001
- One easy mate to solve... by Leonid, CCC, January 22, 2001
- One average mate position... by Leonid, CCC, January 23, 2001
- If you like to solve easy forced mate... by Leonid, CCC, January 24, 2001
- If you like to solve average mate position... by Leonid, CCC, January 25, 2001
- If you like to solve real mate... by Leonid, CCC, January 27, 2001
- If you like to solve mate from real game... by Leonid, CCC, January 28, 2001
- If you like forced mate... by Leonid, CCC, January 30, 2001
- Forced mate position to solve... by Leonid, CCC, January 31, 2001
February
- If you like to solve a mate... by Leonid, CCC, February 01, 2001
- Forced mate so solve... by Leonid, CCC, February 05, 2001
- If you like to solve easy mate... by Leonid, CCC, February 08, 2001
- If you like to solve a mate... by Leonid, CCC, February 09, 2001
- If you like to crush easy mate... by Leonid, CCC, February 10, 2001
- If you like to solve mate for light position... by Leonid, CCC, February 11, 2001
- If you like to solve mate... by Leonid, CCC, February 14, 2001
- If you like solving forced mate... by Leonid, CCC, February 15, 2001
- If you like to solve one easy mate... by Leonid, CCC, February 16, 2001
March
- Easy mate to solve... by Leonid, CCC, March 04, 2001
- If you like to sove a mate... by Leonid, CCC, March 10, 2001
April
- If you are ready to solve one mate... by Leonid, CCC, April 11, 2001
- If you like easy mate... by Leonid, CCC, April 12, 2001
- If you want to solve one mate... by Leonid, CCC, April 14, 2001
- If you enjoy like me solving mates... by Leonid, CCC, April 16, 2001
- Mate that every program will solve... by Leonid, CCC, April 17, 2001
- One mate to solve... by Leonid, CCC, April 22, 2001
- Mate to solve... by Leonid, CCC, April 23, 2001
- Mate that every program will find by Leonid, CCC, April 26, 2001
- Mate to solve for champions... by Leonid, CCC, April 29, 2001
May
- One mate to solve for fittest programs by Leonid, CCC, May 04, 2001
- Very easy mate to solve by Leonid, CCC, May 05, 2001
- One mate to solve... by Leonid, CCC, May 06, 2001
- Mate to solve in two flavous by Leonid, CCC, May 07, 2001
- One mate to solve... by Leonid, CCC, May 08, 2001
- One mate to solve... by Leonid, CCC, May 15, 2001
- One very easy mate to solve by Leonid, CCC, May 21, 2001
- One mate to solve... by Leonid, CCC, May 30, 2001
June
- One mate to solve... by Leonid, CCC, June 02, 2001
- Mate to solve for good program by Leonid, CCC, June 07, 2001
- One mate to solve for Champion! by Leonid, CCC, June 16, 2001
July
- One mate to solve by Leonid, CCC, July 17, 2001
- One mate to sove for Champions! by Leonid, CCC, September 02, 2001
- One mate to solve for Champions! by Leonid, CCC, October 02, 2001
- A mate for Leonid by Sven Reichard, CCC, October 10, 2001
- Try this mate by Leonid, CCC, October 16, 2001
- Try solve this mate by Leonid, CCC, October 21, 2001
- Try this moderate mate by Leonid, CCC, October 27, 2001
- One easy mate by Leonid, CCC, November 04, 2001
- Very easy mate to solve by Leonid, CCC, December 22, 2001
2002
- Where is now 64 bits Intel's computer? by Leonid, CCC, May 11, 2002
- Find a mate by Leonid, CCC, August 03, 2002
- One mate in 10 to solve by Leonid, CCC, August 10, 2002
- One mate in 11 by Leonid, CCC, September 07, 2002
- Try to solve mate by Leonid, CCC, September 14, 2002
- What is the future for Linux? by Leonid, CCC, October 03, 2002 » Linux
- What new chip will come in the next year? by Leonid, CCC, November 06, 2002
2003
- Where are 64 bits machine? by Leonid, CCC, March 17, 2003
- Mate slightly harder by Leonid, CCC, August 25, 2003
- Mate that should be easy by Leonid, CCC, October 19, 2003
- Heavy mate position but easy to solve by Leonid, CCC, October 20, 2003
- Mate to torture by Leonid, CCC, November 02, 2003
- Try very easy mate by Leonid, CCC, November 04, 2003
- Try to solve very populated mate by Leonid, CCC, November 05, 2003
- Very easy mate by Leonid, CCC, November 06, 2003
2005 ...
- Seeking for Leonid mates by Matthias Gemuh, CCC, May 09, 2005
- Leonid's Megapage by AGove, CCC, July 20, 2007
2010 ...
- Leonid Chess Megapage by kirchner, Immortal Chess Forum, August 10, 2012
- Remember Leonid Liberman (author of LLCHESS)? by Dann Corbit, CCC, May 23, 2015
External Links
- LL Chess Game - End of the World Production, LLC.
- Inevitable Mate Positions by Leonid Liberman
- Chess Introduction by Leonid Liberman
- Procedure for finding the Check by Leonid Liberman
- New Ideas by Leonid Liberman