2D Packing

Katarena
Kepler Golden 6
Kitchen Floor Puzzle
Kite A&B
Kitty Kitty
Kleinkunst
KnitPeg Puzzle
Koro=sensai
L-oops
L-Tromino Plus
Lateral Thinking
Leaves
Legal Packing
Leiden-schaft
Levelmino
Lil Pack
Link
Loggerhead Challenge
Lombard Loops
London Squares
Looking Glass