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🌋 Underworld View Chamber
Bottom View — Last Node Visible from Below for Each Vertical Line
🎮 Controls
▶ Show Bottom View
⏭ Next Column
↺ Reset
🌳 New Tree
💡 How It Works
🔦 Looking up from underground
📍 Last node at each HD is visible
🔢 Use level order traversal
✨ Deepest nodes at each vertical line shown
🏔️ Bottom View
Click Start to reveal...