Japan Zukei dakejanai Puzzle Championship 2013

Dear Puzzlers,
we are puzzler community since 2011.
Our purpose is to hold offline puzzle competition in Japan.

Our first competition is held in Oct-22-2011 at Tokyo. It is called Japan Zukei Puzzle Championship, JZC for short. 'Zukei' is Japanese word meaning 'geometric'. Every puzzles in JZC is related to geometric puzzle. Puzzles are built by five people and 27 people　(including authors) participated competition. You can download puzzles here(Japanese only).
In Feb-23-2013, We held competition again. Its name is Japan Zukei dakejanai Puzzle Championship, JZdC for short. 'dakejanai' means 'not only'. So JZdC contains some word puzzles, number puzzles, etc. JZdC have ended successfully. Eight people contributed as author and 33 people (including authors) participated competition.

As you know too, logical puzzles are world-wide fun without the border of language. We hope that international puzzlers enjoy our puzzles too. But JZdC contains not only well-known puzzles but also so many original puzzles.
So we decided to publish English instructions. Below are all puzzles in JZdC2013. Reading instructions, you will be able to solve JZdC puzzles.

Round1   30min instruction[E], puzzles[J],  practice(1[E], 2[E], 3[J])
Round2   50min instruction[E], puzzles[J],  bonus puzzles[E]
Round3   40min instruction[E], puzzles[E]
Round4   30min instruction[J],  puzzles[J]
Round5   45min instruction[E], puzzles[E]
Round6   60min instruction[E], puzzles[J],  bonus puzzles[E]
Round7   50min instruction[E], puzzles[E], practice[E], bonus puzzles[E]
RoundEx 30min instruction[J],  puzzle[E]
 * Round4 is Japanese linguistical puzzle round. So there is no English instruction.
 ** Round Ex is almost explained on the competition day. Please read not instruction but puzzle booklet.

We are not used to translation. So there might be something wrong or hard to understand.
If so, please ask by comment.


Click read more, result and solutions will be shown.



Result
Round1 max   91/100, avg   49.0 : solutions[J]
Round2 max 226/200, avg 117.5 : solutions[J]
Round3 max 141/160, avg   70.6 : solutions[J]
Round4 max   80/100, avg   45.7 : solutions[J]
Round5 max 138/180, avg   78.6 : solutions[E]
Round6 max 248/240, avg 126.3 : solutions&target time[E]
Round7 max 185/200, avg   94.6 : solutions[E]
RoundEx max 92, avg 85.2 : optimum solution[E]
Total     1st 1046, 2nd 944, 3rd 930, avg 583.3
*Time bonus of 2 points per 1 minute saved with no mistake.

JZdC2013 contributors
Author : Atsumi Hirose(Mitsuhiro Ase)[R3, R6], Gomatamago(Makoto Shimizu)[R6], Naoki Inaba[R4], Shinichi Aoki[R7], Takeya Saikachi[R2, R6], Tatsuya Yamamoto[R1], Tomoaki Tokunaga[Rex], xevs(Ko Okamoto)[R5, R6]
Test Solver : baLLjugglermoka(Masumi Muraoka)[R6], Eden(Yuta Nagata)[R3], gorogoro[R6], Hideaki Jo[R7], Kota Morinishi[R4, R5], Ryota Horikawa[R1], Yuhei Kusui[R2]