Heiner Marxen

Home * People * Heiner Marxen



Heiner Marxen, a German computer scientist and software engineer, M.Sc. in computer science from Technical University of Berlin in 1986, and author of Chest, a Program for Solving Orthodox Chess Problems. Heiner is a well known Busy Beaver expert. Additionally he introduced a method to compute Rook Paths Puzzles. In 1973, he has written the first precursor of Chest, written in Fortran-II (no recursion) to solve mate-in-two problems. It did not need or use any tapes and ran on an IBM-1130 with 32 K bytes, and took half an hour for one job.

=Selected Publications=
 * Heiner Marxen, Jürgen Buntrock (1990). Attacking the Busy Beaver 5. Bulletin of the EATCS, Vol. 40
 * Roland Mueller, H.D. Doll, I.J. Donasch, Heiner Marxen, H. Pause (1991). A new man-machine-interface at BESSY. IEEE Conference on Particle Accelerator

=Forum Posts=

1997 ...

 * New improvement to alpha/beta + TT? by Heiner Marxen, rgcc, January 13, 1997 » Fail-Soft
 * Null move idea by Heiner Marxen, CCC, June 04, 1999 » Null Move Pruning
 * CHEST 3.19 is available by Heiner Marxen, CCC, December 18, 1999

2000 ...

 * Nalimov's EGTBs (long post with code) by Heiner Marxen, CCC, October 13, 2001 » Nalimov Tablebases
 * A new(?) technique to recognize draws by Heiner Marxen, CCC, June 01, 2002 » Repetitions, Corresponding Squares
 * Re: Delaying Extensions Idea (does anyone do this)? by Heiner Marxen, CCC, July 24, 2007 » Extensions
 * Re: Piece List questions by Heiner Marxen, CCC, September 05, 2008 » Piece-Lists

2010 ...

 * Re: How old were you in 1967?? by Heiner Marxen, CCC, September 21, 2011
 * Re: Perft(3) from 1978, with a twist! by Heiner Marxen, CCC, December 09, 2011 » Perft
 * Re: Counting depth as a function of number of legal moves by Heiner Marxen, CCC, February 29, 2012
 * Re: Wanted: A successor to Chest by Heiner Marxen, CCC, June 25, 2012
 * Re: Incrementally-updated attack map by Heiner Marxen, CCC, April 22, 2014 » Incremental Updates, Attack and Defend Maps
 * Re: A simple PRNG using /dev/urandom by Heiner Marxen, CCC, May 07, 2015 » PRNG
 * Re: Move ordering for cheapest refutation by Heiner Marxen, CCC, August 13, 2015 » Move Ordering
 * Re: What should the next step be ? by Heiner Marxen, CCC, May 18, 2017

=External Links=
 * Home Page of Heiner Marxen
 * Solving Orthodox Chess Problems
 * Self-Avoiding Walks of a Rook on a Chessboard

=References= Up one level