May 2016 – Paramesis Puzzle Blog

Rhombitrihexagonal Yagit

Yagit (ヤギとオオカミ) is a puzzle type originally found in Puzzle Communication Nikoli volume 124 (September 2008). I have adapted this puzzle to play on a Rhombitrihexagonal grid.

Rules

Here is a field of sheep and wolves, represented by circles and triangles. Draw some fences to divide the field into regions that each contain at least one sheep or one wolf, but not both. No region can be empty.
The fence must follow the path of a dodecagon, not turning more than 30 degrees at any vertex, unless it has a black dot. Black dots indicate vertices where the fence may turn in any direction. It is not necessary that a fence cross every black dot.
Fences may not branch, but may intersect at any vertex that does not have a black dot. Black dots can be part of at most a single fence.
Fences must start and stop at the edge of the field.

Example

Puzzles

All of the puzzles can be found organized in this printable PDF, or in the images below.

PDF Rhombitrihexagonal Yagit Batch 1

01. Easy

Rhombitrihexagonal Yagit Easy 01.png

02. Medium

Rhombitrihexagonal Yagit Medium 02

03. Medium

Rhombitrihexagonal Yagit Medium 03

04. Hard

Rhombitrihexagonal Yagit Hard 04

05. Hard

Rhombitrihexagonal Yagit Hard 05

06. Expert

Rhombitrihexagonal Yagit Expert 06

Moon or Sun

Moon or Sun is a puzzle type originally found in Puzzle Communication Nikoli volume 154. Here is a six-puzzle exploration of this type.

Rules

1. Create a single loop that passes through some cells without branching, intersecting, or moving diagonally.

2. Each bold-outlined region can be entered and exited only once.

3. Bold outlined regions contain moons or suns. In each region, the path must either pass through all of the moons and pass through none of the suns or pass through all of the suns and pass through none of the moons.

4. The path must pass through at least one symbol in each bold-outlined region.

5. The regions the path passes through must alternate between suns and moons.