Manual de Fritz 15 2015 | Page 161

Reference

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game ahead, say, three moves. The "A" engine will still be analyzing the initial position
(the one on the board when we started the Shared Analysis function), but the "B"
engine will be analyzing the position on the board three moves later and storing its
evaluations in the hash tables it shares with Engine "A"; in theory, the "B" engine will
always be three moves ahead of its "twin", therefore it'll always be storing positions in
the hash tables for places the "A" engine hasn't reached yet. But when the "A" engine
does get to these points, it'll find a whole lot of positions which have already been
analyzed. This will allow the "A" engine to analyze a lot more positions very quickly and
search even deeper than it could if the "A" engine was analyzing by itself. It's like a
military team sending a reconaissance patrol ahead to report back on the terrain and
enemy positions it encounters. When it's all said and done, Engine B is "feeding" extra
analysis to Engine A.
As a last tip regarding Shared Analysis, it's best used with a large-sized hash table (as
big as you can get without causing excessive hard disk activity). Remember, you set
the hash table size in the engine selection dialogue (reached by hitting F3 while in the
main chessboard screen).

3.5.10 Monte Carlo
Ana ly s is - M o nte C a rlo

To start a Monte Carlo analysis from a particular position, go to the Tools menu, select
"Analysis", and then "Monte Carlo" from the submenu (note that this function will be in
grey half-tone and unavailable unless you've already loaded a Rybka engine). The next
thing you know, something startling happens: the game in your Notation pane
disappears, to be replaced by the "Load book" button.

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