Author: Severi Salminen
Date: 10:07:09 12/06/01
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>The problem for me is not updating the board but updating infornmation of >squares that are attacked. But still, from what I've understood, we should be comparing perft 6 figures, even though you have to do some "extra" work. And this leads to the conclusion: there is not much point in comparing these figures. You might go a lot slower judging these figures but still your engine might be even stronger: you just do the "hard work" elsewhere then me, for example. I know I'm faster than Crafty (comparing perft) but my engine does things more similar to Crafty than your engine for example. >If the king is not in check then I check if the piece is pinned by my pin array >and if the piece is not pinned I generate it's moves. > >The only exceptions are king moves or castling and in this case I use my attack >array to find if the move is legal. > >If the king is in check I have a special function to generate moves. This is something I have wanted to try. Now I don't have special function for movegen() if king is in check. >I may need to know the number of legal moves to decide how much to extend. That is indeed a way to extend (based on mobility) but if you must generate all the moves in every node, you will eventually be A LOT slower than most other engines - and even if you extend more accurately it might not be worth of the slow down. Normally you just use the move from hash table and if not found, you generate only captures and 95% of cases you will get a cut off. But we will see when you have a fully functional engine which approach is better! >I also do not know nothing about my engine because at this stage I have no >engine and only a move generator and ideas. Great thing you have also started your own project! I was away for a few months so I don't know who is doing what, but good to have new programmers around! Does it have a name? ...am I sounding like a daddy or what... Severi "not a daddy" Salminen
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