Around a year ago, a puzzle competition named “JdZdC” was held in Japan. The puzzles are published recently; see here. I made Round 4 for this. I used new puzzle types themed by “warp” (I wonder if this usage of the word is Japanese style; we mainly use this SF meaning), and here I will write about this theme.
In Nikoli's main quarterly magazines, there is a place to invent new puzzle types. In 2012, "Warp Hole" appeared in this article;
Rules: Place two circles (warp hole) into every region. From each arrow, a spirit starts in that direction. When it reaches to a circle, it goes to the other circle of the same region, and restarts
. The numbers beside arrows show how many times warp holes are
used by that spirit. Every warp hole must be used at least once. to the
In fact, I have never seen the last part of the rules is used, and such ones are a bit harder, of course;
I liked this type, especially the concept of warp, but it soon disappeared. I believed this concept can be used more in
English instruction is prepared here. Note that this round was so hard because of my misjudgment. I asked
This offline competition will be held again in March. I hope we can publish the puzzles earlier this year.