Puzzle 018 - No Numbers Loop

No Numbers Loop was invented by Xevs.

Rules:
Draw a closed loop in the grid.
The loop can cross itself but otherwise never visits any point twice.
In any of two adjacent squares, the line segment can't form a number in any orientation. (listed below).
Numbers outside the grid shows how many clossings exist along the direction.
Some parts of the loop are already drawn for you, and the loop can't go through a segments with "X".

Puzzle 017 - Coded Skyscrapers

Rules for Skyscrapers

The numbers  are replaced with letters.

The same letters are the same digits and different letters are different digits.

Puzzle 016 - Skyscrapers

Rules for Skyscrapers

Play this puzzle on PUZ-PRE

Puzzle 015 - Colored Skyscrapers

Rules:

Fill the grid with digits 1 to N, so that each digit appears exactly once in each row or column.
Some cells should be shaded.
Clues with black circle indicate how many shaded skyscrapers are visible from that direction(non-shaded skyscrapers are ignored).

Non-shaded clues indicate how many non-shaded skyscrapers are visible from that direction(shaded skyscrapers are ignored).

Puzzle 014 - Slitherlink

Puzzle 013 - Masyu

Puzzle 012 - Coded Skyscrapers

Rules for Skyscrapers

The numbers  are replaced with letters.

The same letters are the same digits and different letters are different digits.