diff --git a/exercises/practice/anagram/.meta/config.json b/exercises/practice/anagram/.meta/config.json
index c9f8c1cb8..80743f737 100644
--- a/exercises/practice/anagram/.meta/config.json
+++ b/exercises/practice/anagram/.meta/config.json
@@ -9,6 +9,7 @@
     "h-3-0",
     "hintjens",
     "JacobMikkelsen",
+    "jagdish-15",
     "kytrinyx",
     "lpil",
     "patricksjackson",
diff --git a/exercises/practice/anagram/.meta/tests.toml b/exercises/practice/anagram/.meta/tests.toml
index 06c698e91..d2fdc4ef2 100644
--- a/exercises/practice/anagram/.meta/tests.toml
+++ b/exercises/practice/anagram/.meta/tests.toml
@@ -47,6 +47,11 @@ description = "detects anagrams using case-insensitive possible matches"
 
 [7cc195ad-e3c7-44ee-9fd2-d3c344806a2c]
 description = "does not detect an anagram if the original word is repeated"
+include = false
+
+[630abb71-a94e-4715-8395-179ec1df9f91]
+description = "does not detect an anagram if the original word is repeated"
+reimplements = "7cc195ad-e3c7-44ee-9fd2-d3c344806a2c"
 
 [9878a1c9-d6ea-4235-ae51-3ea2befd6842]
 description = "anagrams must use all letters exactly once"
@@ -58,12 +63,15 @@ comment = "Reimplemented"
 
 [68934ed0-010b-4ef9-857a-20c9012d1ebf]
 description = "words are not anagrams of themselves"
+reimplements = "85757361-4535-45fd-ac0e-3810d40debc1"
 
 [589384f3-4c8a-4e7d-9edc-51c3e5f0c90e]
 description = "words are not anagrams of themselves even if letter case is partially different"
+reimplements = "85757361-4535-45fd-ac0e-3810d40debc1"
 
 [ba53e423-7e02-41ee-9ae2-71f91e6d18e6]
 description = "words are not anagrams of themselves even if letter case is completely different"
+reimplements = "85757361-4535-45fd-ac0e-3810d40debc1"
 
 [a0705568-628c-4b55-9798-82e4acde51ca]
 description = "words other than themselves can be anagrams"
@@ -72,3 +80,10 @@ comment = "Reimplemented"
 
 [33d3f67e-fbb9-49d3-a90e-0beb00861da7]
 description = "words other than themselves can be anagrams"
+reimplements = "a0705568-628c-4b55-9798-82e4acde51ca"
+
+[a6854f66-eec1-4afd-a137-62ef2870c051]
+description = "handles case of greek letters"
+
+[fd3509e5-e3ba-409d-ac3d-a9ac84d13296]
+description = "different characters may have the same bytes"
diff --git a/exercises/practice/anagram/test_anagram.c b/exercises/practice/anagram/test_anagram.c
index 2afcf6cb4..6964c6d9c 100644
--- a/exercises/practice/anagram/test_anagram.c
+++ b/exercises/practice/anagram/test_anagram.c
@@ -186,12 +186,12 @@ static void
 test_does_not_detect_an_anagram_if_the_original_word_is_repeated(void)
 {
    TEST_IGNORE();
-   char inputs[][MAX_STR_LEN] = { "go", "Go", "GO" };
+   char inputs[][MAX_STR_LEN] = { "goGoGO" };
 
-   char subject[] = { "orchestra" };
+   char subject[] = { "go" };
 
    candidates = build_candidates(*inputs, sizeof(inputs) / MAX_STR_LEN);
-   enum anagram_status expected[] = { NOT_ANAGRAM, NOT_ANAGRAM, NOT_ANAGRAM };
+   enum anagram_status expected[] = { NOT_ANAGRAM };
 
    find_anagrams(subject, &candidates);
    assert_correct_anagrams(&candidates, expected);
@@ -271,6 +271,35 @@ static void test_words_other_than_themselves_can_be_anagrams(void)
    assert_correct_anagrams(&candidates, expected);
 }
 
+static void test_handles_case_of_greek_letters(void)
+{
+   TEST_IGNORE();
+   char inputs[][MAX_STR_LEN] = { "ΒΓΑ", "ΒΓΔ", "γβα", "αβγ" };
+
+   char subject[] = { "ΑΒΓ" };
+
+   candidates = build_candidates(*inputs, sizeof(inputs) / MAX_STR_LEN);
+   enum anagram_status expected[] = { IS_ANAGRAM, NOT_ANAGRAM, IS_ANAGRAM,
+                                      NOT_ANAGRAM };
+
+   find_anagrams(subject, &candidates);
+   assert_correct_anagrams(&candidates, expected);
+}
+
+static void test_different_characters_may_have_the_same_bytes(void)
+{
+   TEST_IGNORE();
+   char inputs[][MAX_STR_LEN] = { "€a" };
+
+   char subject[] = { "a⬂" };
+
+   candidates = build_candidates(*inputs, sizeof(inputs) / MAX_STR_LEN);
+   enum anagram_status expected[] = { NOT_ANAGRAM };
+
+   find_anagrams(subject, &candidates);
+   assert_correct_anagrams(&candidates, expected);
+}
+
 int main(void)
 {
    UNITY_BEGIN();
@@ -293,6 +322,8 @@ int main(void)
    RUN_TEST(
        test_words_are_not_anagrams_of_themselves_even_if_letter_case_is_completely_different);
    RUN_TEST(test_words_other_than_themselves_can_be_anagrams);
+   RUN_TEST(test_handles_case_of_greek_letters);
+   RUN_TEST(test_different_characters_may_have_the_same_bytes);
 
    return UNITY_END();
 }