LITS 2

Yeech.  I hope this post works okay.  I've created a monster of a LITS puzzle and now my Internet connection is all wonky.  I've got the images saved, but the Puz Pre link may give me issues.  Anyways, this puzzle is probably the hardest I've created so far.  Get ready to put your thinking caps on.  You'll definitely need to open this in its own window.

LITS Rules

LITS 2

Puz Pre V3 link

Another tip:  If you go to the Puz Pre link, Go to the Display menu, and change the Cell size to Small or Ex. Small to see more of the puzzle at once.  It also helps with making the borders between regions appear thicker and easier to distinguish between them and the thinner grid lines.

LITS 1

LITS Rules

Puz Pre V3 link

LITS Rules

LITS earned it's name based on the 4 pieces that are used in the puzzle.  The L-shaped tetromino, the I-shaped tetromino, the T-shaped tetromino, and the S-shaped tetromino.  The square tetromino is not used for reasons you will see below.

Here are the rules.

1.  Each region in the grid must contain exactly one tetromino of edge-connected cells.
2.  No tetromino in one region can touch another similarly-shaped tetromino in another region along a cell edge.  (This includes rotations and reflections)
3.  A solved puzzle can have no area of 2x2 black cells anywhere.  (Even if the cells come from different regions.)
4.  All black cells must be connected together through their edges.

Stay tuned for LITS Puzzle no. 1!