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--- chess:programming:polyglot_book_format:turn [2022/01/11 14:03] – created peter
+++ chess:programming:polyglot_book_format:turn [2022/01/11 14:05] (current) – peter
@@ Line 1: / Line 1: @@
 ====== Chess - Programming - Polyglot Book Format - Turn ======
+**Turn** is part of the [[Chess:Programming:Polyglot Book Format:Key|Key]]
+It is the exclusive or of entries from the **RANDOM_TURN** sub-array.
+<WRAP info>
+**NOTE:**  If White is to move then **turn** is the sole entry from the **RANDOM_TURN** sub-array.
+  * If it is Black to move, then **turn** is zero.
+</WRAP>