Perplexible

Whoops, sorry for the break in posting. University and whatnot.

Here’s a LITS variant: every region has two tetrominoes, instead of one. Other puzzles of this type seem to not allow tetrominoes in the same region to touch each other, but that restriction isn’t at play here.

(click for full size)

Rules:

• Shade some cells to form two tetrominoes in each region.
• Two tetrominoes of the same shape may not share an edge.
• The shaded cells must also form a connected wall that contains no 2×2 squares of shaded cells.

Posted in LITS, Puzzle by ArDeeJ, 09/15/14 9:29 AM
3 Comments »

I’m not sure if today’s puzzle enritely qualifies as a double, since one puzzle uses numbers while the other doesn’t.

TSLI is a LITS variant. TSLI is to LITS as Pata is to Tapa, hence the naming.

I actually made the TSLI first, and as an afterthought decided to make a Heyawake with the same grid. It’s the first Heyawake I’ve made, and considering how much trouble I have solving Heyawakes, it turned out surprisingly good.

TSLI rules:

• Shade some cells to form a continuous wall that contains no 2×2 squares of shaded cells.
• Each region contains exactly four unshaded cells, and they must form an L, I, T or S tetromino. Tetrominoes of the same shape may not share an edge.

Heyawake rules:

• A region’s clue tells exactly how many shaded cells it contains. Unclued regions may have any number of shaded cells (including zero).
• Two shaded cells may not share an edge.
• The unshaded cells must form a single, continuous polyomino.
• No continuous line of unshaded cells may pass over two or more region borders.
• To clarify the last rule, the scenario below is illegal, but the one below it legal.

EDIT: Turns out both puzzles were broken, both had slight ambiguities. That’s what happens when I make puzzles while delirious with fever, and have no test-solvers to boot…

The fix isn’t elegant, but I like the rest of the TSLI too much to completely retool the lower left corner. The Heyawake was reclued too.

(The dot means that the cell is unshaded.)

Posted in LITS, Puzzle by ArDeeJ, 09/15/14 9:29 AM
3 Comments »

Here’s an easy/medium LITS. Getting the puzzle to wrap up was the hardest part.

Rules:

• Shade some cells to form a tetromino in each region.
• Two tetrominoes of the same shape may not share an edge.
• The shaded cells must also form a connected wall that contains no 2×2 squares of shaded cells.

EDIT: I modified two of the central regions, the puzzle solves more smoothly now.

Posted in LITS, Puzzle by ArDeeJ, 09/15/14 9:29 AM
3 Comments »

Today’s puzzle is both a LITS and a two-star Star Battle. Of the two, the LITS is definitely easier.

LITS rules:

• Shade some cells to form a tetromino in each region.
• Two tetrominoes of the same shape may not share an edge.
• The shaded cells must also form a connected wall that contains no 2×2 squares of shaded cells.

Star Battle rules:

• Place two stars in every row, column and region.
• The stars may not touch each other, even by corners.

Posted in LITS, Puzzle by ArDeeJ, 09/15/14 9:29 AM
3 Comments »

It’s a mashup of Easy as ABC and regionless LITS.

Standard regionless LITS rules:

• The shaded area must be continuous
• There can’t be any 2×2 blocks of shaded cells
• The shaded area must be tileable with LITS tetrominoes such that no two tetrominoes of same shape touch

Additionally:

• No row or column may have two tetrominoes of the same shape in it
• The clues along the edges tell the shape of the tetromino that is first seen in that column or row
• (L and J tetrominoes and S and Z tetrominoes aren’t distinguished)
• A bolded line between clue cells means the two cells can’t see the same tetromino
• No line between clue cells means the two cells see the same tetromino
• A dashed line between clue cells means the two cells may see the same tetromino, but not necessarily

Hopefully I was clear with the rules.

Posted in LITS, Puzzle by ArDeeJ, 09/15/14 9:29 AM
3 Comments »