Shikaku problems

Problem list Rules How to play

Guest's problem list (Shikaku)

You can enjoy     cells problems, if you are a member.

Status
Unsolved -> Opened -> SolvedSolved -> Opened ->Unsolved
Published
Old -> NewNew -> Old
Size
Small -> LargeLarge -> Small
Level
Easy -> DifficultDifficult -> Easy
    Author    
123 -> ABC -> abcabc -> ABC -> 123
Jan 20, 03:0018x10

18x10

Medium

T.Karino
Jan 16, 03:0024x14

24x14

Medium

K.S
Jan 12, 15:0036x20

36x20

Hard

aiko
Jan 8, 15:0018x10

18x10

Easy

SAKAMOTO, Nobuyuki
Jan 7, 03:0024x14

24x14

Hard

nyoroppyi
Jan 2, 21:0010x10

10x10

Easy

cubic function
Jan 1, 03:0036x20

36x20

Hard

Ryohei Nakai
Dec 29, 03:0018x10

18x10

Medium

cubic function
Dec 26, 15:0036x20

36x20

Hard

Casty
Dec 23, 15:0045x31

45x31

Extra

-4
Dec 20, 03:0010x10

10x10

Easy

aquablue
Dec 15, 21:0018x10

18x10

Medium

bay wolf Jr
Dec 13, 03:0024x14

24x14

Medium

SAKAMOTO, Nobuyuki
Dec 10, 03:0024x14

24x14

Hard

nyoroppyi
Dec 6, 03:0010x10

10x10

Medium

Ogawa Minori
Solve problemDec 1, 21:0010x10

10x10

Easy

aiko
Nov 29, 15:0024x14

24x14

Hard

nyoroppyi
Nov 25, 03:0036x20

36x20

Hard

Ogawa Minori
Nov 21, 15:0018x10

18x10

Medium

-4
Nov 17, 15:0036x20

36x20

Hard

Casty
Nov 13, 03:0010x10

10x10

Easy

cubic function
Nov 9, 03:0024x14

24x14

Hard

aiko
Nov 6, 21:0018x10

18x10

Easy

bay wolf Jr
Solve problemNov 4, 21:0010x10

10x10

Easy

SAKAMOTO, Nobuyuki
Oct 31, 15:0018x10

18x10

Medium

T.Karino
Oct 29, 13:0045x31

45x31

Extra

the ax and sword
Oct 26, 03:0018x10

18x10

Easy

SAKAMOTO, Nobuyuki
Oct 23, 03:0018x10

18x10

Medium

T.Karino
Oct 19, 03:0024x14

24x14

Hard

Casty
Oct 14, 15:0036x20

36x20

Hard

-4
Oct 12, 15:0010x10

10x10

Medium

nyoroppyi
Solve problemOct 9, 15:0010x10

10x10

Easy

cubic function
Oct 7, 03:0024x14

24x14

Hard

the ax and sword
Oct 3, 21:0018x10

18x10

Medium

bay wolf Jr
Oct 1, 03:0036x20

36x20

Hard

aiko
Sep 29, 03:0018x10

18x10

Medium

nyoroppyi
Sep 25, 15:0024x14

24x14

Hard

aquablue
Sep 21, 15:0036x20

36x20

Hard

Casty
Solve problemSep 16, 21:0010x10

10x10

Easy

Miya
Sep 12, 15:0036x20

36x20

Hard

-4
Sep 11, 03:0018x10

18x10

Hard

alkaline
Sep 9, 03:0024x14

24x14

Hard

nyoroppyi
Sep 3, 15:0010x10

10x10

Easy

cubic function
Sep 1, 03:0024x14

24x14

Medium

bay wolf Jr
Aug 27, 15:0036x20

36x20

Hard

bay wolf Jr
Aug 23, 03:0010x10

10x10

Easy

alkaline
Aug 19, 15:0036x20

36x20

Hard

T.Karino
Aug 15, 21:0018x10

18x10

Medium

nyoroppyi
Solve problemAug 13, 03:0010x10

10x10

Easy

cubic function
Aug 10, 03:0018x10

18x10

Medium

-4
Aug 6, 15:0024x14

24x14

Hard

Ogawa Minori
Aug 4, 03:0024x14

24x14

Medium

aiko
Aug 1, 03:00
Last 6d & 14h
18x10

18x10

Easy

SAKAMOTO, Nobuyuki
Jul 29, 15:00
Last 4d & 2h
36x20

36x20

Hard

nyoroppyi
Jul 26, 03:00
Last 14h
24x14

24x14

Medium

SAKAMOTO, Nobuyuki

Nikoli puzzle books

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

WEB Nikoli

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.