irumea Sudoku

Sudoku that makes you better — not just busy. Other apps make puzzles longer. irumea shows you the technique you need right now and lets you take the step yourself. Every hint names the situation, marks where to look and explains why this is the only way. You keep solving — and learn as you go. SIX CHAPTERS, ONE LADDER Each chapter is a way of thinking, not a difficulty level: • Only One Way — singles • Already Taken — pointing and claiming • One Digit at a Time — X-Wing, Skyscraper and relatives • Tertium non datur — XY-Wing, W-Wing • Two Colors — coloring and chains • What If — forcing chains 160 hand-picked levels, five per technique, built so the technique actually shows up. No puzzle is padded. HINTS THAT EXPLAIN A hint shows you the situation and names the technique. Go deeper if you want — all the way to the reasoning. The digit itself is yours to place. A hint costs one from…