OOPS, WAIT -- THE B'S ARE DOUBLE LETTER SCORES, NOT TRIPLE.
Ghaaah.

The second B is the only one that gets the double letter score. The first one was already gotten by whoever played BO - you can't get a double letter score or anything, really, twice. Basically, think of the placed tile as erasing whatever is underneath it: when you play it, you get whatever you are covering and nothing more. Once the tile is played you only get face value plus what you are covering.

mygothlaundry is correct. I have been playing Scrabble since I was so young that my parents had to spot me 100 points to make it a match, and my bf and I get into screaming fights to this day after a game where he cheated and broke this rule in question.

From the Scrabble Official Rules:

5. Letter and word premiums count only on the turn in which they are played. On later turns, letters already played on premium squares count at face value.

Whoa. I think none of us were right.

How about this?: Does the second 'B' count as 6 points (in the word 'BOB') or as twelve points (6 for 'BOB' and 6 for 'BA')?

Oh, 12 points for "BOB' and "BA." Thought you had a more contentious scoring issue. :)

No, thanks! There were issues none of us even realized. I had no idea about the first 'B' not counting double.

One of the things I love about Scrabble is all the rules (teach a 6 year old Scrabble and she'll grow up to be a lawyer). We had the official Scrabble dictionary and challenges in our house were heated affairs.

My Grandfather was an avid Scrabble player and competitive to a crazy level. I played him when I was six or seven and played a word and was about to reach in the bad to get my replacement tiles. He put his hand on the bag, flicked my tiles off the board, shouted "NOT A WORD!", made a play and then took his tiles. My Grandma told him I was just a little boy and he told her I'm going to be a little boy that knows which words count and which ones don't. That's probably why I grew up to be a very meticulous Scrabble player.

Of course, everyone so far is correct: "you can't get a double letter score or anything, really, twice." BUT, our family played differently--we counted ALL the bonuses for a word, even if those bonuses had been used before, racking up enormous scores and really changing the strategy. When I started playing with other folks, it took some adjustment, for sure.