Our challenge this month is a bit tricky ;) you will have to decode the following ciphertext by using columnar transposition cipher but without a keyword!

Ciphertext: clst onao yawd uayi

*hint: don’t use google, you don’t even have the key

You can try the smallest number that can be divided by the ciphertext length and the remainder equal to zero. If you found the number start applying the columnar, afterwards guess the transposition technique. 

Number of the ciphertext letter: 16
 16/4 = 4 
 remainder = 0
 You will start filling 4x4
 Then try to guess the columns order, it is 4213.
 Decrypted text: you can always do it ;)