NyanBazShikaku is an old puzzle born in 1989. Shikaku lost popularity along the way and seemed to have disappeared. It started to appear on nikoli.com and regained its energy after that. What is its charm?
NyanBazHow do you think Ryohei?
NobThere were no Shikaku with the rough bold system in the old days.
NyanBazMaybe they didn't use big numbers then?
NobSure, but problems with big numbers still lets you do it step by step, the fine (small block) way.
NyanBazThat's where you go ahead and expand it with temporarily set blocks little by little. That was the standard with old hard problems.
NobMaybe yes. It's a pleasant feeling when it is solved at a burst.
NobHis problems are really not easy even when there are so few numbers in a puzzle.
NobHis problems have a strong influence on other authors. Akasyo's problems with only a few numbers may have been an influence for Aspirin.
NobWe welcome Shikaku problems that have only small numbers such as 2, 3, or 4. We want to offer different types of problems.
NobThere weren't a lot of problems that you began by putting in big numbers in the old days.
NyanBazRyohei's Shikaku problem selected for the pick of the puzzles recently had an 18 to fit first. (Deadline Nov 2010, Medium)
NyanBazWhy did you do it that way then?
NobWhen you make Shikaku, do you think about where to start the solution form?
NyanBazYou make a lot of problems with an attractive looking placement. Does that all happen as you go along?
NyanBazPersonal inclination is what determines the number placement with Shikaku.
NyanBazIsn't it scary when the method where only one number will reach a cell can be used in a part you did not aim at?
NobThat is a weak point with Shikaku.
NobThat just about says it.
NobIt isn't a bad thing in hard problems.
NobThere was a time when that sort of method was how problems got solved.
NyanBazThat may be why Shikaku became dull then.
NobProblems that are solved smoothly are interesting even if I solve them on paper. That's why the popularity revived.
NyanBazPlease let us hear your opinions about numbers.
NyanBazThe numbers are the same but the shape of the boxes were different.
NobJust like in a horror movie. The monster gradually approaches. You don't want it to come. But if a monster appears, you are pleased.
NobDo you think like that about numbers Ryohei?
NobYou give priority to make it easy to decide exactly how a box goes.
NobYou make a lot of hard problems recently. You look like becoming a hard author.
NyanBazWhat is the number you like best?
NobThey are numbers with many divisors. A reasonable preference.
NobThat's the Ryohei style.
NyanBazWhat is the number you like best Guten?
NyanBazThere are three ways with that 4x4, 2x8, and 1x16.
NyanBazIt's interesting that your personality is reflected on the preference for numbers. Then here comes the last question. What is some advice to people who are weak at Shikaku?
NyanBazThank you for today.
Discussion on Dec 2010 Published on Dec 26, 2013