Logic Masters Deutschland e.V.

This is the sequel of my Try-ominos. Consider solving the first one before trying this new (and harder) version. Please read carefully the rules and pay attention to the given examples before trying the puzzle.

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Rules:

Chaos Construction: Divide the grid into regions, each consisting of nine orthogonally connected cells. Each row, column and region must contain the digits 1 to 9 once each.

Anti-triominos: A region is not valid if it can be divided into three separate triominos (polygons made of three squares connected orthogonally edge-to-edge).

Compass: Each region contains a single compass. A compass is a circle in a cell.

An arrow attached to a compass divides the grid into two sides, delimited by the column or row border between them. A digit placed on an arrow counts the number of cells that belong to the compass region in the side of the grid that contains the arrow.

e.g.: if r4c3 is a 1, the region of the compass in r4c4 has only 1 cell somewhere in columns 1-3.

e.g.: the arrow in r3c2 counts the number of digits of the region of the compass in r2c2 that are in the rows 3-9 (i.e. in row 3 or below).

Cave compass: Each compass is also a cave clue. It represents the total number of cells that can be seen in its region in a straight line vertically and horizontally, including itself. Other regions block vision.

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Some clarifications about the rules.

In the example below are shown to different regions. The blue region at the left is not a valid region for this puzzle because it can be divided into three separate triominos. The pink region at the right, instead, is a valid region because it can't be divided into three separate triominos.

In the example below you can see a valid region for the green compass. In this example, the green region has exactly 6 cells at the right of the compass (i.e. between columns 5-9) e 1 cell at the left of the compass, as requested by the clues pointed by the arrows. The compass cell is a 4 because it sees 4 cells inside its region vertically and horizontally.

Thanks MathGuy, lmdemasi, Sotehr, vfig for testing the puzzle.

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Have fun solving and please leave a comment after you solve!