C / Q THE LOGIC NOTEBOOK0 / 15 solved

SMALL NUMBERS. SATISFYING DISCOVERIES.

Cage & Quill

Every row in harmony. Every little cage adds up.

NOTEBOOK

Opening notebook…

THREE SIMPLE RULES

One of each
Fill each row and column with the numbers 1–4, with no repeats. There are no Sudoku boxes.
Follow the cage
Bold borders group cells into cages. The small clue gives a target and an operation: 6+ means the numbers add to six.
Order is flexible
Multiply all numbers for ×. For − and ÷, use the larger number first. A single-cell cage is its clue.

12×3×4= 12

A quiet place to think

Choose a square, then a number. Pencil mode keeps small candidate notes; hints reveal one answer and mark the page assisted.

↑↓←→ move · 1–6 enter
P pencil · Z undo
Backspace erase

15 engine-generated puzzles · 4×4, 5×5, 6×6
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Adapted from Keen · Portable Puzzle Collection · MIT license