Mole Detective: Gem Logic

Grab your lantern and help the mole detective dig for gems! Each rock hides a ruby, an emerald, an amber, an amethyst — or nothing at all. Number tiles tell you how many matching gems are nearby. Read the clues, cross out what can't be, and place every gem without guessing. • 1,000 stages across 20 mine zones that change as you dig deeper • A new gem or clue appears every few stages, explained step by step • Every puzzle has exactly one solution you can reach by logic • Try mode lets you test an idea without penalty • Hints walk you through one deduction in three steps • Three lanterns per stage — the lanterns you keep become your stars • Today's Vein: a fresh daily puzzle once you have met every gem • Play offline, no account needed, 10 languages Purchases: hint packs, a one-time starter pack, and Remove Ads (removes banners and automatic full-screen ads for good and adds 20 free hints…