0 is a multiple of 0, so 0 at index 0 should pass the test. The only way you can pass the tests (at least in Java) is to ignore element 0, meaning that only the wrong solutions pass :(

null, not nil

which member is anchor in which team should be explained in a clearer fashion. otherwise the kata is ok.

the code ive posted is the one that gets the err msg. do u mean i cant even use standard string methods?

no clue whats wrong.. it seems to pass all tests, then some syntax error pops up (using js);

Test Passed: Value == eta
Test Passed: Value == qxz
Test Passed: Value == eirfg
Test Passed: Value == abc
Test Passed: Value == xyz
Test Passed: Value == aeiou
Test Passed: Value == tfo
Test Passed: Value == abc
Test Passed: Value == kjpphi
Test Passed: Value == tjuukf
Test Passed: Value == ajqqtb
Test Passed: Value == tjuukf
SyntaxError: Invalid regular expression: /*/: Nothing to repeat
at new RegExp
at RegExp
at String.search
at SubstitutionCipher.encode

12 Passed
0 Failed
1 Errors
Process took 53ms to complete