Fill the Box: Line Connect

Fill the Box: Line Connect is a relaxing puzzle collection with three different ways to solve, connect, and complete the board.

Connect numbers, draw paths, and fit colorful shapes into the grid as you work through hundreds of satisfying logic puzzles. Whether you have two minutes for a quick puzzle or want to settle into a longer session, you can always find a challenge that fits your mood.

Choose your favorite puzzle style or switch between all three whenever you want something different.

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3 PUZZLE GAMES IN ONE APP
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1. FILL THE BOX — Number Flow Puzzles

Start at 1 and create one continuous path through the numbers in order: 1 → 2 → 3 and beyond.

Fill every playable square while planning your route around barriers, corners, corridors, and winding paths. As you progress, the boards become larger and the solutions require more careful planning.

2. LINE CONNECT — Number Pair Matching

Connect matching numbers with continuous lines and fill the playable grid without letting paths cross.

Plan each route carefully. One connection can change the space available for another, so finding the right order and path is the key to completing harder boards.

If you enjoy line connect games, number matching puzzles, or Flow-style path puzzles, this mode gives you plenty of boards to solve.

3. SHAPE FIT — Block & Shape Puzzles

Drag colorful geometric blocks onto the board and find the arrangement that fills every space.

Rotate pieces, fit polyomino shapes together, and solve increasingly challenging layouts without overlaps or empty spaces. It combines the satisfying feel of block puzzles with spatial reasoning and tangram-style challenges.

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WHY PLAY FILL THE BOX?
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• 3 puzzle games in one app
• 1,500+ logic puzzle levels
• Line connect and number matching puzzles
• Sequential number flow puzzles
• Block, shape fitting, and tangram-style puzzles
• Daily puzzle challenge and streaks
• Helpful hints when you get stuck
• Rewind connected paths and rotate shape pieces
• Stars and progression across puzzle sectors
• Relaxing 3D visuals with colorful themes
• Smooth animations and tactile haptic feedback
• No countdown timers or unnecessary pressure
• Offline gameplay — solve puzzles without Wi-Fi or mobile data

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RELAXING PUZZLES, YOUR WAY
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Some puzzles are quick and simple. Others require you to stop, look at the whole board, and think several moves ahead.

Fill the Box is designed around that satisfying moment when everything finally fits.

Connect the numbers. Complete the paths. Fit the shapes. Earn your stars and keep unlocking new challenges.

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HOW TO PLAY
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Choose one of the three puzzle modes and start solving.

• Connect numbers in sequence or match identical number pairs.
• Draw paths across the grid without crossing other paths.
• Fill every playable space on the board.
• Drag and rotate shapes into the correct positions.
• Use hints when you need a little help.
• Complete puzzles to earn stars and unlock more levels.

Whether you like line connect games, number puzzles, flow puzzles, block puzzles, shape fitting, or relaxing brain games, Fill the Box brings several classic puzzle ideas together in one game.

Think ahead. Connect the numbers. Fit the shapes.

Start solving with Fill the Box: Line Connect.