Manual de Fritz 15 2015 | Page 168
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Fritz 15 Help
You can step forward and backward through the variation one move at a time by using
the single arrow VCR buttons.
If you want to jump right to the beginning or end of a variation, you can use the
double arrow buttons for that purpose.
3.5.15 Chess problems, mate search
H o m e - Le v e ls
M a te s e a rch (o r C tlr- M )
This allows you to solve chess problems (“White to play and mate in n moves”). There
is a special mate solving engine which can also handle selfmates in which White must
force Black to mate him, and helpmates, in which both sides co-operate to mate Black.
In the dialog box for the mate search, select an engine (only engines which are
specialised for mate searches will be displayed) and specify the kind of problem you
are solving.
“Parameters” allows you to set certain options, especially for very deep mate problems
which would otherwise take too long.
“Heuristic search” allows you to specify the maximum number of flight squares
the black king can have.
“Threat with check” specifies how deep a mate threat should be for it to be
considered.
The program not only displays the key move of the problem, but also generates a
complete solution, with all alternative defences by Black. If the problem has more than
one solution (i.e., it is “cooked”), then alternate solutions will be given as lines to the
first move of White. “Last move” specifies whether the last move of the problem,
which is usually obvious, should be included or not.
© ChessBase 2015