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Our Super Electronic Handheld Sudoku puzzles are all top of the line. Each model includes over 1,000,000 puzzles built in. We use a super high resolution large LCD display for easy viewing with Indiglo backlight built into three different models (sk-838, sk-898, sk-8011) for playing in the dark. 3-5 Levels of play (depending on the model) - the number of givens goes down with each higher level. Each Sudoku game comes in sealed packages with instruction booklet. Please see below for exact model specifications, colors and dimensions.
sk-680 Features:
1) Size: 6" x 4.5" x 1"
2) Screen: 2" x 3"
3) Auto grid memory function
4) Functions: drafting function, reading function, redoing examination function, and double-mode operation
5) 3 modes: time, date, alarm clock
6) 2 million random puzzles
7) Power supply: 2 x AAA (not included)
8) Color: silver
sk-681 Features:
1) Size: 5.4" x 3.3" x 0.9"
2) Screen: 2" x 3"
3) 3 modes: time, date, alarm clock
4) Millions of sudoku games, you can select any game difficult or easy as you like
5) Functions: drafting function, reading function, redoing examination function, and double-mode operation
6) Power supply: 2 x AAA (not included)
7) Color: silver
sk-682 Features:
1) Size: 5.8" x 3.9" x 0.9"
2) Screen: 1.5" x 2.1"
3) 3 modes: time, date, alarm clock
4) Millions of sudoku games, you can select any game difficult or easy as you like
5) Functions: drafting function, reading function, redoing examination function, and double-mode operation
6) Power supply: 2 x AAA (not included)
7) Color: silver, blue, green, or purple (random color)
sk-683 Features:
1) Size: 5.4" x 3.3" x 0.9"
2) Screen: 2 x 3"
3) 3 modes: time, date, alarm clock
4) Millions of sudoku games, you can select any game difficult or easy as you like
5) Functions: drafting function, reading function, redoing examination function, and double-mode operation
6) Power supply: 2 x AAA (not included)
7) Color: silver, blue, green or purple (random color)
sk-838 Features:
1) Size: 5.5" x 3" x 1"
2) Screen: 2.5" x 2" touch panel with Stylus pen
3) NightGlow display
4) Game function: 3 levels of game play: easy, medium, difficult
5) Functions: time display, auto power off
6) Power supply: 2 x AAA (not included)
7) Color: silver
sk-878 Features:
1) Size: 4.6" x 2.8" x 0.8"
2) Screen: 2.1" x 1.9" touch panel with Stylus pen
3) NightGlow display
4) Game function: 3 levels of game play: easy, medium, difficult
5) Functions: time display, auto power off
6) Power supply: 2 x AAA (not included)
7) Color: silver
sk-898 Features:
1) Size: 4.6" x 2.8" x 0.8"
2) Screen: 2.1" x 1.9"
3) NightGlow display
4) Game function: 3 levels of game play: easy, medium, difficult
5) Functions: time display, auto power off
6) Power supply: 2 x AAA (not included)
7) Color: silver
sk-8011 Features:
1) Size: 4.75" x 3.25" x 0.7"
2) Screen: 2.5" x 2" touch panel with Stylus pen
3) NightGlow display
4) Game function: 3 levels of game play: easy, medium, difficult
5) Functions: time display, auto power off
6) Power supply: CR2032 lithium button batteries (included)
7) Color: silver
Sudoku is a logic-based placement puzzle, also known as Number Place in the United States. The aim of the puzzle is to enter a numeral from 1 through 9 in each cell of a 9 × 9 grid made up of 3 × 3 sub-grids (called regions), starting with various numerals given in some cells (the givens). Each row, column and region must contain only one instance of each numeral. Solving the puzzle requires patience and logical ability. Its grid layout is reminiscent of other newspaper puzzles like crosswords and chess problems. Although first published in 1979, Sudoku became popular in Japan in 1986 and took the United Kingdom by storm.
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