bygone russian ruler: crossword clues

Matching Answer
Confidence
TSAR
95%
CZAR
60%
TZAR
60%
LENIN
60%
SHAH
60%
MIR
60%
TSARS
60%
SSR
60%
IVAN
60%
INCA
60%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)