Short answers dominate here: 11 of 31 fit in one or two squares. 5 clues are pictures, and 3 of those ask you to fill the gaps in a word printed on the image; 4 clues want only the initials of the clue words; 3 want just the first letter of a single word; 3 clues are fill-ins, and 1 of them needs only the missing letters. The longest answer runs 9 letters and belongs to “Sleep hormone”.
Here is the shortcut for Puzzle 2663: read the first letters of the top-row answers and you get the answer to “Marsh gas”. Read the first letters down the left edge and you get the answer to “Sleep hormone”. One of those two words unlocks the first letter of 15 others.
Hints and answers, clue by clue
AClues look the way they do in the game. Tap Hint for a nudge or Answer to see the letters. The fully solved grid is below the hints.
Top row
These sit along the top edge and every answer runs down.
SLEEP HORMONE
1Sleep hormone
Top row 1/7 · 9 letters · down
Fits M _ _ A _ _ N _ _. The sixth square is also part of “AGAINST ALL ___”.
MELATONIN
2Picture clue
Top row 2/7 · 3 letters · down
Look at the picture and fit it to E _ _. The third square is also part of the picture clue in the left column.
EYE
AFTER S
3After s
Top row 3/7 · 1 letter · down
Step one letter forward from S in the alphabet.
T
-y
4Picture clue
Top row 4/7 · 2 letters · down
Picture word minus “y” gives the answer. First letter: H.
HA
BOUNDARY
5Boundary
Top row 5/7 · 5 letters · down
Begins with A. The fourth square is also part of “A-list group”.
AMBIT
ALL TIDIED UP
6All tidied up
Top row 6/7 · 4 letters · down
N _ _ _. Check the third letter against “Cave dweller”.
NEAT
OPPOSITE OF BORE
7Opposite of bore
Top row 7/7 · 9 letters · down
Fits E _ _ E _ _ A _ _. “SECUR__Y” crosses it at the sixth square.
ENTERTAIN
Left column
These sit down the left edge and every answer runs across.
8Marsh gas
Left column 1/9 · 7 letters · across
Picture plus words: “MARSH GAS”. The answer opens with M.
METHANE
ELEMENT YIELD
9Element yield
Left column 2/9 · 2 letters · across
Abbreviate “Element yield” to its initials.
EY
mal-
10Picture clue
Left column 3/9 · 3 letters · across
The image carries “mal-”. Name the picture and keep only the letters hidden behind the dashes, beginning with L.
LET
ACCESS
11Access
Left column 4/9 · 1 letter · across
Only one square: take the initial of Access.
A
BELIEF OR PRINCIPLE
12Belief or principle
Left column 5/9 · 5 letters · across
Shape: T _ _ E _. “In case that” crosses it at the fourth square.
TENET
"AGAINST ALL ___"
13"AGAINST ALL ___"
Left column 6/9 · 4 letters · across
The missing word in “AGAINST ALL ___” starts with O.
ODDS
NEURAL ENGINE
14Neural engine
Left column 7/9 · 2 letters · across
Take one letter from each word of the clue, in order.
NE
-ala
15Picture clue
Left column 8/9 · 3 letters · across
The image carries “-ala”. Name the picture and keep only the letters hidden behind the dashes, beginning with I.
IMP
PERSONAL TITLE
16Personal title
Left column 9/9 · 4 letters · across
Starts with N; pattern N _ _ _. Solving “Phase modulation” first gives you its third letter.
NAME
Inside the grid
Split squares hold two clues: the top half runs across, the bottom half runs down.
"CAN I GET AN ___?"
17"CAN I GET AN ___?"
Row 3, col 4 · 4 letters · across
Which word finishes “CAN I GET AN ___?”? It fits A _ _ _.
AMEN
SEE TO
18See to
Row 3, col 4 · 4 letters · down
Starts with T; pattern T _ _ _. The third square is also part of “Belief or principle”.
TEND
CAVE DWELLER
19Cave dweller
Row 4, col 5 · 3 letters · across
Shape: B _ _. Solving “Opposite of bore” first gives you its third letter.
BAT
IN CASE THAT
20In case that
Row 4, col 5 · 4 letters · down
Fits L _ _ _. Check the third letter against “AGAINST ALL ___”.
LEST
A-LIST GROUP
21A-list group
Row 5, col 3 · 5 letters · across
Begins with E. The fourth square is also part of “All tidied up”.
ELITE
PLANT SWELLING
22Plant swelling
Row 5, col 3 · 5 letters · down
Fits E _ _ M _. Solving the picture clue in the left column first gives you its fourth letter.
EDEMA
RISE
23Rise
Row 6, col 7 · 1 letter · across
Only one square: take the initial of Rise.
R
BLACK
24Black
Row 6, col 7 · 4 letters · down
I _ _ _. Its third letter is shared with “Slope activity”.
INKY
SECUR__Y
25SECUR__Y
Row 7, col 6 · 2 letters · across
Fill the gap in “SECUR__Y”, but leave out the letters already shown. Starts with I.
IT
UNITED STATES
26United states
Row 7, col 6 · 2 letters · down
Take one letter from each word of the clue, in order.
US
SANDWICH FISH
27Sandwich fish
Row 8, col 4 · 4 letters · across
Fits T _ _ _. Its third letter is shared with “Black”.
TUNA
PHASE MODULATION
28Phase modulation
Row 8, col 4 · 2 letters · down
Take one letter from each word of the clue, in order.
PM
SLOPE ACTIVITY
29Slope activity
Row 9, col 5 · 3 letters · across
Begins with S. “Opposite of bore” crosses it at the third square.
SKI
ENGRAVER
30Engraver
Row 9, col 5 · 1 letter · down
Just the opening letter of Engraver.
E
YES OR NO
31Yes or no
Row 10, col 6 · 2 letters · across
Shape: Y _. “Opposite of bore” crosses it at the second square.
YN
Crossword Challenge Level 2663 Solved Grid
Hide the letters to check your own board against the empty grid.