{"product_id":"sharpened-pencil-100-sudoku-puzzles-puzzle-studio-pack","title":"Sharpened Pencil — 100 Sudoku Puzzles | Puzzle Studio Pack","description":"\u003cp\u003e\u003cstrong\u003e⚠️ Requires 7ThirtyWorld Puzzle Studio (sold separately).\u003c\/strong\u003e This is an expansion pack — a puzzle file that loads into the Studio app. It is not a standalone game and will not open on its own.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003e100 sudoku puzzles. Every one has exactly one solution, and that has been proved, not assumed.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhere sudoku stops being a scanning exercise. These grids can't be finished by singles alone — you'll need \u003cstrong\u003enaked pairs\u003c\/strong\u003e and \u003cstrong\u003epointing pairs\u003c\/strong\u003e, which means keeping honest pencil marks and reasoning about where a digit \u003cem\u003ecan't\u003c\/em\u003e go. Bring a system.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you get\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 puzzles\u003c\/strong\u003e, each with \u003cstrong\u003e25 to 30 starting clues\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuaranteed unique solutions\u003c\/strong\u003e, confirmed by exhaustive search on every single grid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraded by technique.\u003c\/strong\u003e Every puzzle in this pack genuinely requires pair logic — verified individually, not estimated from the clue count.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll 100 grids are different\u003c\/strong\u003e, and different from every other pack in the collection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrdered gently\u003c\/strong\u003e — the pack opens with the most generous grids and works down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow it plays in the Studio\u003c\/h3\u003e\n\u003cp\u003ePencil-mark notes are essential here, and the Studio clears a candidate from every peer cell automatically when you commit a digit. Live duplicate highlighting catches contradictions early, and a row, column or box turns green the moment it is complete and correct.\u003c\/p\u003e\n\n\u003ch3\u003eHow to load it\u003c\/h3\u003e\n\u003cp\u003eOpen \u003cstrong\u003e7ThirtyWorld Puzzle Studio\u003c\/strong\u003e, choose \u003cem\u003eAdd a pack\u003c\/em\u003e, and select this file — or just drag the file onto the app. It joins your library permanently and works completely offline.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eInstant digital download. One pack file. 100 puzzles. Yours forever.\u003c\/em\u003e\u003c\/p\u003e","brand":"7ThirtyWorld","offers":[{"title":"Default Title","offer_id":45433428148247,"sku":"7TW-PS-SD-SHARP","price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0581\/7594\/6775\/files\/Sudoku-Sharpened-Pencil_1f01822e-336b-4b80-8a9a-8b95dd58c870.png?v=1787791456","url":"https:\/\/7thirtybiz.com\/products\/sharpened-pencil-100-sudoku-puzzles-puzzle-studio-pack","provider":"7ThirtyWorld","version":"1.0","type":"link"}