Shikaku problems

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Guest's problem list (Shikaku)

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Status
Unsolved -> Opened -> SolvedSolved -> Opened ->Unsolved
Published
Old -> NewNew -> Old
Size
Small -> LargeLarge -> Small
Level
Easy -> DifficultDifficult -> Easy
    Author    
123 -> ABC -> abcabc -> ABC -> 123
Feb 18, 21:0010x10

10x10

Easy

cubic function
Feb 15, 03:0018x10

18x10

Medium

nyoroppyi
Feb 10, 15:0036x20

36x20

Hard

T.Karino
Feb 8, 15:0024x14

24x14

Hard

-4
Solve problemFeb 7, 03:0010x10

10x10

Easy

alkaline
Feb 3, 15:0036x20

36x20

Hard

Casty
Jan 31, 21:0018x10

18x10

Medium

aquablue
Jan 29, 03:0024x14

24x14

Medium

bay wolf Jr
Jan 25, 03:0018x10

18x10

Easy

SAKAMOTO, Nobuyuki
Jan 21, 15:0024x14

24x14

Hard

Guten
Jan 18, 15:0024x14

24x14

Hard

Ogawa Minori
Solve problemJan 15, 03:0010x10

10x10

Easy

alkaline
Jan 12, 03:0018x10

18x10

Medium

cubic function
Jan 8, 03:0036x20

36x20

Hard

Casty
Solve problemJan 5, 15:0010x10

10x10

Easy

Kenja
Jan 3, 03:0036x20

36x20

Hard

-4
Jan 1, 03:0018x10

18x10

Hard

nyoroppyi
Dec 29, 03:0018x10

18x10

Medium

Casty
Dec 25, 15:0036x20

36x20

Hard

-4
Dec 23, 21:0024x14

24x14

Hard

cubic function
Solve problemDec 19, 03:0010x10

10x10

Easy

cubic function
Dec 14, 03:0018x10

18x10

Medium

-4
Dec 10, 15:0036x20

36x20

Hard

nyoroppyi
Dec 9, 03:0018x10

18x10

Medium

Ogawa Minori
Dec 4, 15:0010x10

10x10

Medium

alkaline
Dec 3, 03:0024x14

24x14

Hard

T.Karino
Dec 1, 03:0024x14

24x14

Medium

SAKAMOTO, Nobuyuki
Solve problemNov 27, 15:0010x10

10x10

Easy

Guten
Solve problemNov 24, 21:0010x10

10x10

Easy

cubic function
Nov 20, 15:0024x14

24x14

Hard

Ogawa Minori
Nov 17, 03:0018x10

18x10

Medium

-4
Nov 12, 15:0036x20

36x20

Hard

aspirin
Nov 10, 21:0010x10

10x10

Easy

aquablue
Nov 8, 03:0024x14

24x14

Medium

Casty
Nov 4, 15:0036x20

36x20

Hard

aiko
Nov 1, 03:0018x10

18x10

Medium

cubic function
Oct 28, 15:0024x14

24x14

Hard

Momotereu
Oct 26, 15:0018x10

18x10

Medium

-4
Oct 22, 15:0036x20

36x20

Hard

T.Karino
Solve problemOct 21, 03:0010x10

10x10

Easy

Guten
Oct 18, 03:0018x10

18x10

Medium

Casty
Oct 15, 03:0024x14

24x14

Hard

nyoroppyi
Oct 13, 03:0010x10

10x10

Easy

-4
Oct 9, 15:0036x20

36x20

Hard

Momotereu
Oct 6, 03:0018x10

18x10

Medium

bay wolf Jr
Oct 2, 15:0018x10

18x10

Medium

aspirin
Sep 28, 15:0036x20

36x20

Hard

-4
Sep 26, 03:0018x10

18x10

Medium

Casty
Sep 23, 03:0024x14

24x14

Medium

SAKAMOTO, Nobuyuki
Solve problemSep 18, 21:0010x10

10x10

Easy

cubic function
Sep 16, 03:0036x20

36x20

Hard

T.Karino
Sep 13, 03:0018x10

18x10

Medium

-4
Sep 10, 03:0024x14

24x14

Hard

Casty
Sep 6, 15:0010x10

10x10

Easy

aiko
Sep 2, 15:0036x20

36x20

Hard

aiko
Sep 1, 03:00
Last 6d & 10h
24x14

24x14

Medium

nyoroppyi
Aug 30, 03:00
Last 4d & 10h
18x10

18x10

Medium

cubic function
Solve problemAug 26, 21:00
Last 1d & 4h
10x10

10x10

Easy

aquablue

Nikoli puzzle books

You can buy Shikaku books at the Purchase Nikoli Books page.

Beginner ShikakuShikaku3Fresh Shikaku9

About the "Problem list" page

  • Click on the up/down arrows at the top to rearrange the order in the list
  • The order of problems that you create is saved. When you open the Problems list page for another puzzle, the list will be in the order you left it in.
  • For example, when you click the up arrow for "size," the list will be re-arranged from small to large sizes, and the lists of other puzzles will also be arranged from small to large.
  • If you want to arrange by "easy" and "large" problems, first click the down arrow for size and then click the up arrow for level.
  • The empty columns are not part of the ordering. If you choose an item which includes blank columns, the blank columns will be at the bottom of the list.
  • The "number of solvers" counts only people who have agreed to make their "solving history" public.
  • There are the most popular Shikaku puzzles in the pick of the puzzles page.