I had found some sudoku variants.
(1) SDK Kawaii
(2) SDK Tatami 7x7x9
(3) SDK Tatami 8x8x11
(4) SDK Tatami 9x9x13
(5) SDK Lattice
Every variants have some small blocks. I named it "Tatami block".
(a.k.a."plot", because plot is smaller than block of address)
(1) SDK Kawaii
This variant has a face like baby of standard sudoku. It is so kawaii.
Each row, column contains 1-6 digits.
This variant has nine 2x2 blocks.
Digits can not repeat in each block.
- Code: Select all
64|5.|.2 64|51|32
..|..|.. 21|36|54
--+--+-- --+--+--
.2|.3|.5 12|63|45
5.|4.|6. 53|42|61
--+--+-- --+--+--
..|..|.. 46|15|23
3.|.4|16 35|24|16
(2) SDK Tatami 7x7x9
Each row, column contains 1-7 digits.
This variant has nine small blocks. (eight 3x2 and one 1x1)
Digits can not repeat in each block.
- Code: Select all
. . .|. .|. . 1 3 2|6 4|5 7
| | | |
5 7 4|. .|. . 5 7 4|3 2|1 6
-----+ | -----+ |
2 6 .|7 .|4 . 2 6 1|7 5|4 3
+-+-+--- +-+-+---
3 . .|.|. . 1 3 4 7|5|6 2 1
---+-+-+ ---+-+-+
. 1|. 2|. 7 5 4 1|6 2|3 7 5
| +----- | +-----
. .|. .|1 6 2 7 5|3 4|1 6 2
| | | |
. .|. .|. . . 6 2|5 1|7 3 4
(3) SDK Tatami 8x8x11
Each row, column contains 1-8 digits.
This variant has eleven small blocks. (ten 3x2 and one 2x2)
Digits can not repeat in each block.
- Code: Select all
7 . .|8 6|5 . . 7 3 1|8 6|5 4 2
| | | |
8 . .|. .|. 3 . 8 2 6|5 4|1 3 7
-----+ +----- -----+ +-----
. . 4|. .|7 8 . 5 1 4|2 3|7 8 6
+---+ +---+
. . 2|. .|. . 4 6 8 2|7 5|3 1 4
-----+ +----- -----+ +-----
3 . .|. .|4 . . 3 5 7|6 1|4 2 8
+---+ +---+
. 4 8+. .+6 . . 2 4 8+3 7+6 5 1
-----+ +----- -----+ +-----
. 6 .|. .|. . 3 4 6 5|1 2|8 7 3
| | | |
. . 3|4 8|. . 5 1 7 3|4 8|2 6 5
(4) SDK Tatami 9x9x13
Each row, column contains 1-9 digits.
This variant has thirteen blocks. (twelve 3x2 and one 3x3)
Digits can not repeat in each block.
- Code: Select all
. . 4|2 .|. 3|6 8 1 5 4|2 9|7 3|6 8
| | | | | |
9 . .|7 .|8 .|. . 9 6 2|7 4|8 1|3 5
-----+ | | -----+ | |
8 7 6|. .|5 .|9 4 8 7 6|3 1|5 2|9 4
+---+-+-+--- +---+-+-+---
. . 3|. . .|. 5 . 2 9 3|1 6 4|8 5 7
-----+ | -----+ |
7 . .|8 . 9|. . 1 7 4 5|8 3 9|6 2 1
| +----- | +-----
. 1 .|. . .|4 . . 3 1 9|5 7 2|4 8 6
---+-+-+---+ ---+-+-+---+
5 8|. 4|. .|9 7 3 5 8|1 4|2 6|9 7 3
| | +----- | | +-----
. .|. 6|. 3|. . 9 4 2|7 6|8 3|5 1 9
| | | | | |
6 3|8 .|. 1|7 . . 6 3|8 9|5 1|7 4 2
(5) SDK Lattice
Each row, column contains 1-9 digits.
This variant has thirteen blocks. Blocks are constructed by two layers.
- 1st layer has four 3x3 blocks.
- 2nd layer has one 3x3, four 3x2 and four 2x2 blocks.
Digits can not repeat in each block.
- Code: Select all
1st layer 2nd layer
. . . . . . . . . . .|.|. . .|.|. .
####### ####### | | | |
.#. . .#.#. . .#. . .|.|. . .|.|. .
# # # # ---+ +-----+ +---
.#. . .#.#. . .#. . . . . . . . . .
# # # # ---+ +-----+ +---
.#. . .#.#. . .#. . .|.|. . .|.|. .
####### ####### | | | |
. . . . . . . . . . .|.|. . .|.|. .
####### ####### | | | |
.#. . .#.#. . .#. . .|.|. . .|.|. .
# # # # ---+ +-----+ +---
.#. . .#.#. . .#. . . . . . . . . .
# # # # ---+ +-----+ +---
.#. . .#.#. . .#. . .|.|. . .|.|. .
####### ####### | | | |
. . . . . . . . . . .|.|. . .|.|. .
- Code: Select all
6 .|3|. . .|8|7 . 6 1|3|2 4 9|8|7 5
####### ####### ####### #######
8#9|.|5#.#.|4|.#2 8#9|1|5#6#7|4|3#2
-#-+ +-#-#-+ +-#- -#-+ +-#-#-+ +-#-
.#. 6 .#9#. . .#7 4#3 6 8#9#1 5 2#7
-#-+ +-#-#-+ +-#- -#-+ +-#-#-+ +-#-
5#7|.|.#.#8|.|6#. 5#7|2|4#1#8|9|6#3
####### ####### ####### #######
. 4|.|9 . 2|.|5 . 3 4|8|9 7 2|6|5 1
####### ####### ####### #######
.#2|.|3#.#.|.|9#8 1#2|4|3#5#6|7|9#8
-#-+ +-#-#-+ +-#- -#-+ +-#-#-+ +-#-
9#. . .#2#. 1 .#. 9#8 5 7#2#3 1 4#6
-#-+ +-#-#-+ +-#- -#-+ +-#-#-+ +-#-
7#.|9|.#.#5|.|8#4 7#6|9|1#3#5|2|8#4
####### ####### ####### #######
. 5|7|. . .|3|. 9 2 5|7|6 8 4|3|1 9
I felt that small block make hard problems easily.
Please try to solve SDK Kawaii.
It is more difficult than vanilla 6x6 sudoku.
How about these new variants ?
If you will feel interesting, I am so happy.
