Beginner’s Puzzle Set

Rules

1. Make a single loop with lines passing through the centers of cells, horizontally or vertically. The loop never crosses itself, branches off, or goes through the same cell twice.
2. Lines must pass through all cells with black and white circles.
3. Lines passing through white circles must pass straight through its cell, and make a right-angled turn in at least one of the cells next to the white circle.
4. Lines passing through black circles must make a right-angled turn in its cell, then it must go straight through the next cell (till the middle of the second cell) on both sides.

1 unit comes with 30 puzzles with 60 pieces of paper.  

This puzzle was first introduced in Puzzle magazine Nikoli Vol.11 and since then it has gained enormous popularity from wide group of people and now is the king of pencil puzzles. The more you solve, the better you become at Kakuro and your hand moves so fast chasing the answer numbers flashing in your head even without thinking. It is inexpressible enjoyment. Don't worry about addition and subtraction, because Nikoli's Kakuro keeps those parts as less as possible. When you feel like starting Kakuro, just use the fixed patterns. You'll see them work and your first Kakuro is finished. 1 unit comes with 30 puzzles with 60 pieces of paper.