The word Chesmen is misspelled against Chessmen, which is plural of "Chessman"
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Chessmen has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings che & men which should not be misspelled with single 'S'
Wrong Spelling:  che-s-men 
Correct Spelling:  che-ss-men 
Explore spell check of Chessmen to spell without errors.