Letterbox
v0.14 • Oct 2025
Size
4×4
6×6
8×8
10×10
12×12
15×15
20×15
25×15
0
+200
Letters
A…C
A…D
A…E
A…F
A…G
☆
New
□ Clear
Stats
.
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? Check
i
Info
Letterbox
Rules
Fill grid with letters as demanded by hints.
Hint letters stand for themselves (maybe repeated) and can be ★ anonymous. Examples:
B C B
:
BB
C
B
,
B
CC
B
,
…
A C ★
:
A
C
AA
,
A
CC
B
,
…
★★★★
:
C
A
B
A
,
B
C
A
B
,
…
(no repeats)
★
:
AAAA
,
BBBB
,
…
(full repeat)
Each occurence of letter
X
in the inner (lighter) grid area is
shaded.
Controls
←
↑
↓
→
Pos1
End
Pg↑
Pg↓
: Move cursor
/Tap
Enter
Space
: Increase letter…
A
B
C
…
: Set letter
Del
: Remove letter
Esc
: Show/hide this info box
× Close
? Check
Illegal letter
in
.
× Close
✓ Solved
Well done!
☆ New
× Close