Reach into a linked list and rewire its next-pointers until the chain spells the target order, without orphaning a node or making it loop.
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How to play
Nodes sit on a canvas connected by next-pointers. Re-point them so traversing from HEAD produces the target order. Orphaned nodes drift away and dim; a cycle flashes its arrows red. There is also a one-click Reverse for flipping the whole chain.
Click a node to pick up its arrow, then click another node or the NULL pad to re-point it
The live chain from HEAD updates instantly so you can see orphans and cycles
Solve in fewer moves and less time for a higher score
Controls
Desktop: click a node, then click a target node or the NULL pad; click the same node again to cancel
Phone & tablet: tap a node, then tap its new destination
Game modes
Size: 4, 6 or 8 nodes
Daily for a shared puzzle, Practice for shuffle, reverse and build variants
Tips & strategy
Rewire from the tail backward so you never temporarily strand the rest of the chain
Use Reverse when the target is simply the list flipped, it is a single move instead of many
What you'll learn
Pointer is a hands-on linked-list puzzle about pointers, orphaned nodes and cycles, making data structures visible.
Skills: data structures, linked lists, pointers, memory
Best for: roughly grades 9–12 (ages 14+)
For parents & teachers: pointers and linked lists, made visible.
About Pointer
Pointer is a hands-on linked-list puzzle about pointers, orphaned nodes and cycles. It is an original, free browser game built in-house for PlayPendium.
A free, original browser game on PlayPendium. No download, no install.
