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SDU-320
User’s Guide
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Introduction SUDOKU is a fun game of numbers and logic that anyone can play. The object of the game is to place a number in every square of the 9 x 9 game board. But you can’t just fill in any number anywhere. Each number from 1 to 9 can only occur once in every horizontal row, vertical column, and 3 x 3 square. Each “level”, or grid, begins with a few numbers already in place. You simply have to use a process of elimination to fill in the rest. The first time you turn on your device, a demonstr
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Key Guide Your SDU-320 uses a touch-sensitive screen. Use the stylus, located in the upper right corner of the device, to touch the buttons on the screen. 3
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ON/OFF Turns the unit on and off. After the unit is turned off manually or automatically, any previously started game resumes the next time the unit is turned on. Press and hold this key for 3 seconds to turn the sound on and off. 1-9 Enters 1-9 into a puzzle at the cursor position. LEVEL Chooses a game level. START Starts a game. 4
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PAUSE During a game, suspends the game. When paused, continues the game. During a game, undoes the last move or moves. During a game, clears the number at the cursor position. CHECK Indicates if there are errors in a completed puzzle, but does not indicate which numbers are incorrect. Press CHECK again to resume the puzzle. If the puzzle is correct, stops the timer and ends the puzzle. Performs no function if all squares are not filled in. SOLVE During a game, press and hold this key for 3 secon
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Replacing the Batteries This unit is powered by two G13 batteries. Follow these easy instructions to install or replace them. Please have the new batteries and a small Phillips screwdriver at hand before you remove the old ones. 1. Turn the unit off and turn it over. 2. Use the Phillips screwdriver to unscrew the battery cover screw. 3. Slide the battery cover off. RESET G13-A G13-A CNB CNB 4. Remove the old batteries. Note: Use a paper clip if necessary to remove the old batteries. 6
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5. Install 2 new G13 batteries with positive polarity facing up. Important: Be sure that the batteries are installed correctly. Wrong polarity may damage the unit. 6. Replace the battery cover and secure it with the screw. For better performance and longer operating time, we recommend the use of high quality G13 batteries. Battery disposal: Do not dispose of batteries with normal household waste. Please obey your local regulations when disposing of used batteries. Battery Precautions • Different
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• The supply terminals are not to be short- circuited. • Do not expose batteries to direct heat or try to take batteries apart. Follow the battery manufacturer’s instructions for battery use. • Always remove a weak or dead battery from the device. • To avoid damage caused by leakage of the battery fluid, replace the battery or batteries once every two years regardless of how much the device has been used during that time. • Should a battery leak, the device may become damaged. Clean the battery
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Information Adjusting the Contrast When there is no game started, the contrast control screen is displayed. Press the dash to the left of the number (indicated by “A”) to decrease the contrast. Press the dash to the right of the number (indicated by “B”) to increase the contrast. The number in the center of the screen will decrease or increase as you press the dashes. 9
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Turning the Sound On and Off Press and hold ON/OFF for 3 seconds to turn the sound on and off. A short beep indicates when the sound has been turned on or off. Automatic Shutoff At any time, if no key is pressed for 3 minutes, the unit turns off automatically. Press ON/OFF to turn the unit on and return to your location when the unit turned off. About Screen Illustrations Some screen illustrations in this User’s Guide may differ slightly from what you see on screen. This does not mean that
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Playing the Game 1. Press ON/OFF to turn on the unit. 2. Press LEVEL to cycle through the three game levels. Level 1 is the easiest level. The best solution time for the corresponding level is displayed. 3. Press START. A randomly generated puzzle is displayed and the timer begins. 11
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Note: If you do not want to play the generated game, press and hold for 3 seconds to exit, then press START to generate another game. Some numbers are already filled in at the start of a puzzle. These are indicated by an underscore. These numbers are fixed and cannot be changed. These empty positions are the ones you need to fill in. The cursor, indicated by “-”, blinks in the first empty position. 4. Press the empty position where you want to input a number. If you place the cursor on a positio
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Press PAUSE at any time to pause the timer. Press PAUSE again to restart the timer. Press to undo your last move. Press to erase the number at the cursor position. 6. Repeat steps 4 and 5 until the puzzle is completely filled in. Press and hold SOLVE for 3 seconds to display the puzzle’s solution at any time. Press SOLVE again to display any errors. Then press START to start a new puzzle. 7. Press CHECK after all the numbers are filled in to verify if your solution is correct. If the answer is c
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Puzzle Solver This unit is also a puzzle solver. You can create your own puzzles and see if there are solutions. You can also input a puzzle and then try and solve it. For example, input a puzzle you see in a newspaper or book, then solve it in your device. Validating a Puzzle 1. With no active puzzle, press SOLVE. 14
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2. Press the location where you want to enter a number, and then press the number you would like to enter. An underlined number is added to the screen. 3. Continue until all of the initial numbers are in place. Remember the rules of number placement: Each number from 1 to 9 can only occur once in every horizontal row, vertical column, and 3 x 3 block. If you press the wrong number, press to delete it. Press and hold for 3 seconds to exit the puzzle solver. Note: The more numbers provided at the
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4. Press SOLVE to see if the puzzle you entered is valid. If it is, the missing numbers in the puzzle are filled in. If it is not, the message “Err” is displayed. Press , then adjust the numbers, and then press SOLVE again to check the puzzle. Keep adjusting the values until you no longer see the “Err” message when you press SOLVE. Depending how difficult the puzzle is, validating a puzzle may take a few minutes. 16
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5. After a puzzle is validated, press SOLVE to validate another puzzle or press START to exit the puzzle solver. Solving a Puzzle 1. Follow steps 1-3 from “Validating a Puzzle” above. 2. Press START to start solving the puzzle you entered. If the puzzle is not valid, the message “Err” is displayed. Press , adjust the numbers, and then press START again to check the puzzle. Keep adjusting the values until you no longer see the “Err” message when you press START. Depending how difficult the puzzle
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Additional Puzzles This unit also contains 400 puzzles from Nikoli. Follow these steps to access the additional puzzles: 1. In the level selection screen, press and hold SOLVE for 3 seconds to enter the Preset Puzzle selection screen. 18
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2. The default puzzle number is 001 and the first digit blinks. 3. Enter the number of the puzzle you want to try. Press the digit you want to change, then press the dash to the left or right of the number to decrease or increase the blinking digit, respectively. Note: You can select a puzzle number of 001 to 400. When number is changed, the level changes to indicate the skill level of that puzzle. Press and hold for 3 seconds to exit. 4. Press START to begin the selected puzzle. 5. Solve the pu
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Resetting the Unit If the unit fails to respond, or if the screen performs erratically, perform a system reset. 1. Use a paper clip to gently press the reset button on your unit. RESET The reset button is recessed in a pin-sized hold located directly below the word “RESET” on the back of the unit. 20
