--- /DoubleMetaphone.java	2023-07-05 02:35:18.274152572 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/DoubleMetaphone.java	2023-07-05 02:35:18.274152572 +0200
@@ -281,7 +281,7 @@
     private int handleC(String value, 
                         DoubleMetaphoneResult result, 
                         int index) {
-        if (conditionC0(value, index)) {  // very confusing, moved out
+if  ( contains(value, index, 2, "CZ") && contains(value, (index - 2), 4, "WICZ")) )  {
             result.append('K');
             index += 2;
         } else if (index == 0 && contains(value, index, 6, "CAESAR")) {
