Kara Kutu: Fill the Box

Kara Kutu is a shape puzzle built around one idea: every box has exactly one solution.

Each level is a black box with wooden stones already inside. Fill the empty space with the pieces in your tray: drag them in, tap to rotate, press and hold to mirror. Only one arrangement fits.

SEVEN CHAPTERS, SEVEN DIFFERENT RULES
• Tutorial: learn by doing, shown by an animated hand, no walls of text
• Figures: build a house, a rocket, a cat and more from the 7 classic pieces
• Mirror: some pieces arrive flipped; find which ones to mirror
• Decoy: the tray holds extra pieces that don't belong in the box
• Blackout: the shape shows for a few seconds, then goes dark; solve it from memory
• Bag: pieces arrive one at a time and lock once placed; plan ahead and use your single Hold
• Marked Box: colored marks only accept the matching piece, X marks accept none

EARN THREE STARS
Every level tracks your time, your moves against a target, and your streak of correct placements. Solve fast, with few moves, to earn all three stars.

TWO ENDLESS MODES
• Rush: race the clock; every box you close adds time
• Blast: fill rows and columns to clear them

No account needed. Your progress stays on your device. Plays in English and Turkish.

Recent changes:
• New chapter: Twin Boxes! Two boxes, mixed pieces. Which one goes where?
• New badge: Twin Mind
• Blast refreshed: no more triangles, new pieces and a powerful Bomb
• Rush time now banks up to 2:00, so every run stays tense
• Home button at the end of each level
• Clearer tutorial: turning pieces is now shown step by step
• Bug fixes