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Subject: How to detect combinations?

Author: Pham Minh Tri

Date: 22:08:22 08/02/01


Hi all,

I saw that my weak engine quickly lost some games or missed some other victories
by not recognising many common combinations. I have written codes for detecting
them and tried many extensions. Unfortunately, they made the search tree grew
exponentially (2-6 times slower) but did not help much, many combinations were
still 4 or 5 plies deeper than the full search deep (8-9, some branches are
extended to 13-15). The situation was even worse when a combination did not make
any check or capture before mate.

Could someone give me some suggestions/comments?
Thanks in advance.
Pham



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