The Big Book of Hard Sudoku, Volume 2

The sequel hard solvers asked for

Finished the first volume and still hungry? Volume 2 brings a fresh stack of hard sudoku to the table, every one of them new, in the same big, readable hardcover. It is the natural next step for anyone who enjoyed the climb in Volume 1, and an equally good starting point for a solver meeting the series for the first time.

Hard means hard

Every puzzle rated with Sudoku Explainer, a free program anyone can use to rate a puzzle again, and its Sudoku Explainer rating printed on every page. Puzzles run from lower to higher rating, so the book warms you up before it asks for your sharpest work. Every puzzle has exactly one solution, reached by logic alone. Expect to rely on candidate notes, pointing pairs, box and line reductions and the occasional hidden subset that unlocks a whole region at once.

A deeper warm-up

This volume pairs each sudoku with a single calcudoku at a Hard setting. Every cage shows a target, most with an operation beside it, and that setting gives the warm-up real depth of its own, a good way to switch on before the main puzzle. The how-to page at the front explains the rules, and the calcudoku answers sit beside each sudoku solution at the back.

Comfortable for long sessions

Large print gives every digit room and keeps candidate notes legible, which matters at this level, when a single misread pencil mark can undo an hour of work. The hardcover feels substantial and looks smart on a shelf between solving sessions. Each puzzle names the page of its solution, and every puzzle printed with its own puzzle ID, so checking a stubborn grid is quick.

A thoughtful follow-up gift

If someone loved Volume 1, this is the easiest gift decision of the year. It also suits the friend who collects puzzle books, the retiree who keeps a daily solving ritual, and the colleague who quietly finishes the toughest puzzle in the office newsletter. Pair it with a good mechanical pencil and a soft eraser for a complete solver's kit.

Tips for the hardest pages

When progress stops, scan each box for a digit that can only sit in one row or column, then follow that line across the grid. Keeping notes tidy pays off at this level, and the roomy cells make that much easier. Many solvers save the final stretch of the book for long winter weekends.

Every main puzzle in this series appears in one book only, printed with its own puzzle ID so you can check. Give one volume for a birthday and the next for the holidays: each one is a fresh set.

Part of The Big Book of Large Print Sudoku

This is the second Hard volume of The Big Book of Large Print Sudoku from FrejLight Studio. Start with The Big Book of Hard Sudoku, Volume 1, or go further with the Expert volume when hard starts to feel comfortable.

Find it on Amazon

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