Match Factory! Level 1644 Strategy: How to Prevent Tray Locks

To beat Match Factory! Level 1644, prioritize visible surface targets to keep at least three open slots in your seven-slot tray. The pile in Level 1644 conceals required objects under heavy layers of clutter. Maintaining an empty buffer in your tray prevents game-ending tray locks while you unearth buried mission items.

Maintain a Three-Slot Tray Buffer

Your collection tray holds seven items. Tapping objects without completing a three-of-a-kind match fills the tray, and filling all seven slots causes an immediate defeat.

To stay safe during deep excavation:

1–3 slots filled: Safe zone. Pick single items to reveal underlying layers or hold incomplete sets while scanning.
4–5 slots filled: Caution zone. Stop digging into new piles. Scan the board exclusively for the completing pieces of pairs already in your tray.
6 slots filled: Critical danger. Do not tap any unmatched item. Complete an existing set immediately or deploy a utility booster.

Tray Occupancy	Risk Status	Required Action
1–3 Slots	Safe	Unearth buried items and hold partial pairs while scanning.
4–5 Slots	Caution	Halt deep excavation; find the matching third piece of an active set.
6 Slots	Critical Danger	Make an immediate match from the board or activate a booster.

Scan and Clear Surface Triples First

Before tapping your first item, spend the opening seconds surveying the top layer of the mound:

Check the top objective bar: Note which targets require the highest quantities so you can map out digging routes.
Locate complete sets: Identify all three matching pieces resting freely on the surface before picking them up. Tapping a complete triplet clears the tray instantly without eating up buffer space.
Leave isolated targets alone: Do not pick up a single target item if its matching counterparts are buried deep beneath other objects. Wait until the remaining pieces are exposed.
Avoid tapping partially covered items early: Tapping an object wedged beneath others shifts the physics of the pile, causing surrounding pieces to slide and cover other visible targets.

Clear Bulky Objects to Shift the Pile

Target categories on Level 1644 contain a mix of large, bulky items and compact objects. Large objects press down on lower strata and pin smaller items in place.

Work through the board in this order:

Clear large surface pairs: Remove bulky target pieces first to reduce weight on the pile and allow smaller, pinned items to roll into view.
Take exposed secondary triplets: If a secondary objective item forms an easy, fully exposed set, match it immediately to free up screen visibility and shift the heap.
Finish low-count stragglers: Once the pile thins out, sweep through remaining single target items to close out the stage goals.

Reserve Boosters for Critical Moments

Rely on standard board matching for the majority of the stage, saving utility boosters for near-failure situations:

Spring: Deploy immediately if your tray reaches six occupied slots without a match in sight. The Spring pushes your last retrieved items back onto the heap, instantly restoring your tray buffer.
Vacuum: Use when target items are separated across dense clutter. It pulls complete sets directly into the goal without requiring tray capacity.
Freeze Timer and Fan: If the countdown drops below 30 seconds with objectives still buried, freeze the clock or use the Fan to disperse the pile and reveal hidden targets.