Goal: Shade cells so all 5 rules are satisfied.
1️⃣ Shade cells to form "stones" in each region.
2️⃣ Numbers in regions = exact cells to shade. No number = shade at least 1.
3️⃣ Connected: Shaded cells in each region must be orthogonally connected.
4️⃣ No cross-border: Shaded cells can't touch across region borders.
5️⃣ Gravity: When stones "fall down", they must fill the bottom half completely.
💡 Tip: The gravity rule means each column must have exactly half its cells shaded. Use this to deduce!
🖱️ Controls: Click/tap a cell to shade or unshade it.