D thesis with name “Game Tree Search on Massively Parallel Systems” published 1993 with use of virtual messaging. Onno also has technique called parallel search with use of Young Brothers Wait Concept following Rainer Feldmann’s Ph. This idea include reduction of the search along with reduction window and works like this: if the engine search at some depth found that one loses more than one pawn, the search for that move is stopped and do not search more depths for it. Garms in his code for Onno engine is also using technique called bad pruning which is similar to the one named razoring. Search functions in Onno engine includes iterative search together with Principal Variation Search and null move pruning and also with verification search. It also uses alpha – beta evaluation of exchanging figures and they are tuned automatic by Genetic algorithm that Garms include in his code for Onno engine. This chess engine use variation of fixed shift on Magic bitboards for determining attacks for figures on the board. In the fallowing months competitors get far away with their progress and Onno staid far behind them, so Onno Grams decide that he could not fallow that degree of progress and he stop development and distribution in May 2011. First version of Onno found itself on the seventh place of the world ranked top list, few ELO point below the fourth place. On first view Onno chess engine was very successful but on second view point it did not achieved his developer expectations. Next year, at the same month Onno Garms released second version of his chess engine version 1.2.71 with included multiprocessing in the code of the chess engine. Executables for 32 bit processor register and 64 bit processor register for Windows and Linux are well in communication with chess Graphic User Interface through the Universal Chess Interface.Īs we mentioned before the very first release was on May 2009, version 1.0.0, but Onno Garms started this project 3 years before. Onno was written in C++ and its first release was in May 2009, after 3 years of developing. After Garms get the doctors degree on university he again started his old project about chess engine. Onno was fascinated by Commodore Chessmate computer of his father, and at age of seven he learned to play chess on his father’s computer. Onno Garms is German mathematician who was enthusiastic about chess in his youth. Onno Chess engine was developed and created by Onno Garms.
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