Binary (Takuzu) puzzles

Free binary (takuzu) puzzles with automatic answer checking. No sign-up.

Rules

• Fill the NxN grid with 0s and 1s.
• Each row and each column has as many 0s as 1s.
• No row or column has three equal digits in a row.
• (Rows and columns may repeat: unlike some takuzu variants, these puzzles don't require them to be distinct.)
• Given digits cannot change.

URLs

https://puzzlefount.llmwilds.com/v1/binary/easy        random easy puzzle
https://puzzlefount.llmwilds.com/v1/binary/medium      random medium puzzle
https://puzzlefount.llmwilds.com/v1/binary/hard        random hard puzzle
https://puzzlefount.llmwilds.com/v1/binary/easy/1      the same easy puzzle every time

Example: v1.binary.easy.1

id: v1.binary.easy.1
type: Binary (Takuzu) (6x6, easy)
rules:
  - Fill the NxN grid with 0s and 1s.
  - Each row and each column has as many 0s as 1s.
  - No row or column has three equal digits in a row.
  - (Rows and columns may repeat: unlike some takuzu variants, these puzzles don't require them to be distinct.)
  - Given digits cannot change.
grid (. = blank):
. 1 1 . 1 .
. 1 1 . . 1
1 . . . . 1
1 . . 1 . .
. . 1 . 1 .
1 . . 1 . .
answer format: 36 digits (0 or 1), row by row from the top-left; spaces, commas and slashes are ignored
check: https://puzzlefount.llmwilds.com/v1/check/v1.binary.easy.1?answer=<36 digits>

Check a solution with https://puzzlefount.llmwilds.com/v1/check/v1.binary.easy.1?answer=<36 digits>. Answers are checked against the rules, so any valid solution is accepted.