Masyu² is a variant of Masyu, as its name suggests. The differences are that the path is not closed and the ends of the path are given.
Puzzle and Goal
An unsolved puzzle consists of a rectangular grid. Some squares contain a white or black circle; two contain marked indicating the ends of the path.
The goal is to draw a single open path that satisfies the clues.
The solved grid must satisfy the following conditions:
The path cannot turn in white circles, and must turn 90° in black circles.
The path must turn 90° in at least one of the cells before or after a white circle.
The path must continue straight in both of the cells before or after a black circle.
Black & White Loops; Linienrätsel; Path Finder; Turn Course; Virages