According to this Quora question, the best you can do using the North American Scrabble dictionary is CRYPTO(Z)OOLOGY and QUART(Z), giving a total of 171 points. The setup should look something like this:
...However, that's not the best you can do. We're looking at the highest possible score.
The rules of Scrabble do not prevent players from playing ...
In N-Tile Scrabble Records (Word Ways, May 1983, p.80), Kyle Corbin gives the following, for 231 points. All words can be found in Webster's Third.
A B C D E F G H I J K L M N O
1 # . . + . . . # . . . + . . Q 1
2 . = . . . * . . . * . . . = U 2
3 . . = . . . + . + . . . = . I 3
4 + . . = . . . + . . . = . . C 4
5 . . . . = . . . . . = . . . K 5
I started with the solution given in a paper found by DqwertyC in a comment. Unfortunately, it contains several errors, including invalid words, incorrect scoring, and the wrong tile distribution. Finding ways to resolve these errors gave me the following board.
The opening play is es, using both blanks. The next 3 plays of voicers, epigram, and thirties ...
Draw a dinosaur (11)
Read about an elite person (10)
Look at something that is written (10)
Learn about navy officers (8)
Take things back (7)
Work out a secret plan (8)
Watch from the side (9)
we find that at home you
I've managed a score of $225$. I'm sure a better score is possible, since there were a few places where I was not optimal.
It's impossible to avoid all the "special" squares on the board, so I chose only to hit a few of the Double Letter squares, which are no more penalizing than creating an extra join between words (i.e. it's probably more beneficial to ...
n = 10
They couldn't teach what they should have taught; imagine trying!
For some reason, they were unable to teach the things they should have taught; imagine trying to if you had been in that situation!
A more natural attempt:
Occasionally, blindfolded conjuring wizards quietly, unnoticeably mimicked fictionalised, awe-striking witchery; unfortunately, extensive unbeneficial avariciousness cynically rehabilitated inharmonical, vindictive suffocation.
Now and then, these wizards would get together and practice their magic skills to copy cool spells ...
As a baseline answer:
1780 points from this placement of oxyphenbutazone,
or if this is somehow proven to be the best with an English standard dictionary, without the circled "S" for 1779 points.
Since there is a lot of confusion over the wording of the puzzle, I'll give my interpretation:
By "highest possible scoring move in the game of Scrabble", I ...
It is in fact possible to do an entire Scrabble game without ever using bonus tile besides the mandatory one in the front.
I started of with in, then print, then printer (I borrowed GPR's idea)
The circled/boxed i and n in the middle are blanks, btw.
Here's an interesting note to point out: just because this set-up doesn't use any bonuses doesn't ...
Since Scrabble tile counts follow the letter frequencies of English, there aren't going to be very many words that are excluded by the tile selection.
Starting with the longest words in English (according to a word list called "british-english-insane" because of the number of words it includes), checking each word against online dictionaries, and then ...
10: Six simple women wander toward various very sharp brown fish.
Fairly obvious. The Sharptail Mola is rare enough and odd enough that it would clearly attract attention from passing random women.
11: Every famous fresh child knew waves work because northern summers heave.
As a new child, for which the world exists solely for my amusement, I did indeed ...
Buffaloes, quoting buffaloes, zoomed accurately; buffaloes, promenading buffaloes, zoomed; buffaloes, huffing, zoomed accurately; buffaloes, reworking buffaloes, zoomed.
Buffaloes moved swiftly and accurately while borrowing sayings from other buffaloes or while blowing air loudly, but they only moved swiftly while displaying or updating other ...
I don't think I'm gonna manage 15 to beat George, but I will attempt to get there progressively:
( - Who is it?
- I )
2: Or on.
(It could go under the table. Or on.)
3: Do go, son.
21 21 111
( - I was thinking I shouldn't go Dad.
- No. Do go, son.)
4: Pa, ma isn't near.
31 31 111-1 1111
Extension on Roland's answer:
NOTE: These hypothetical records were established before the introduction of OSPD 4 and have not been update for OSPD 4.
Highest Single Play
1,778 points: OXYPHENBUTAZONE, found by Dan Stock (OH) in 1996
Other words formed were (O)PACIFYING, (Y)ELKS, (P)REInTERVIEWED, (B)RAINWASHING, (A)MELIORATIVE, (Z)ARFS,...
If one is playing against an exceptionally cooperative opponent who never challenges any words, no matter how outrageous, I think the maximum would be 2449 when playing against a single opponent. Showing just the tile values, one would start with the rack 10 10 8 8 5 4 4 and the board:
- 4 - - 4 4 4 - 4 4 4 - - 4 - = 8 tiles
3 0 1 1 1 - 1 3 1 - 1 1 1 0 3 ...