Headddle Game Details
GridLink
Drop pieces, build paths, deny routes.
GridLink is a 9x9 territory connection duel. Players place rotated or mirrored pieces under gravity, trying to complete a valid edge-to-edge connection before the rival.
Overview
Both players share the same 9x9 board and alternate turns.
Each side has a finite inventory: seven piece types, two copies each.
Placement uses a drop-column model with gravity, so piece shape, support, and future lane control are tightly coupled.
How To Play
- 1
Choose one unused inventory piece, apply rotation (0/90/180/270) and optional mirroring.
- 2
Select a drop column. The engine computes the final landing row via gravity.
- 3
A move is legal only if all cells stay in bounds, do not overlap occupied cells, and remain fully supported (no hanging cells).
- 4
After a legal placement, turn passes; if the opponent has no legal move, turn can auto-skip back.
- 5
You can pass only when you truly have no legal move.
How To Win
Immediate win: create a 4-neighbor connection from left to right or from top to bottom with your cells.
If both players become unable to move, the match ends by tie-break: largest connected component size wins.
Equal largest groups resolve as a tie.
Competitive Aspect
Strong play combines route building with denial: every drop both grows your network and blocks future enemy anchors.
Inventory timing matters because each piece is limited and shape-specific windows close quickly as the board fills.