How to play Banpei

  1. Draw an ordinary loop through the centers of cells.
  2. A Banpei puzzle may have three types of clue pearls ("sentinels"): unshaded, shaded, and caged.
  3. All sentinels sit in the intersection between 4 cells that "surround" them.
  4. Unshaded sentinels must be surrounded by exactly 3 line segments.
  5. Shaded sentinels must be surrounded by exactly 2 line segments that aren't directly connected to each other.
  6. Caged sentinels must be surrounded by exactly 2 line segments that are directly connected to each other.
UnshadedShadedCaged

Breaks rule 1: Draw an ordinary loop through the centers of cells.

Breaks rule 4: Unshaded sentinels must be surrounded by exactly 3 line segments.

Breaks rule 5: Shaded sentinels must be surrounded by exactly 2 line segments that aren't directly connected to each other.

Breaks rule 6: Caged sentinels must be surrounded by exactly 2 line segments that are directly connected to each other.

Solved! :D