Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
shambles [ˈʃæmblz] n неразбери́ха
the economy is (in) a complete shambles в эконо́мике цари́т по́лная неразбери́ха
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.