This is new puzzle variation. This puzzle type I created for "Contest for best logic innovation". Very difficult to create this type of puzzle variation. Hope you will enjoy this puzzle.
Fill the grid with digits 1 to 3, so that each digits appears exactly once in every row/column. The cells in the grid can be thought of as individual buildings, and the number inside the building is the number of floors. A number outside the grid indicates how many buildings can be "seen" from the corresponding direction. A building is seen by an observer if there are not buildings taller (with a greater number), between it and the observer. Now with the numbers solve the Fences puzzle, instructions of which are as below.
Draw a single closed loop by connecting neighboring dots horizontally or vertically (but not diagonally). A numbered square indicates exactly how many of its edge segments are used by the path.
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