The Russian letter Щ looks like the letter Ш but has a little tail at the end. It does not have an equivalent in English and sounds like sh and ch together.
Щ is always soft regardless of the following vowels.
Practice with syllables
Words with this letter
Unstressed Е sounds like И.
Practice with a worksheet
Practice the hand-written Russian letter Щ as well as the syllables and words listed above, with this worksheet: download the worksheet.