5. Scoring & Winning

A light blue square doubles the letter; a dark blue square triples the letter (Appendix 1); A light red square doubles the word; a dark red square triples the word (Appendix 1); Where a word crosses both kinds, letter bonuses are added first, then the whole word is doubled or tripled (Appendix 1)

Source: rule 3.5

Send this to your friend — argument over.