An Akari puzzle consists of a square grid in which some of the cells are painted black in the same way as in a crossword puzzle. Think of it as the floor plan of a building in which the black cells represent pillars or wall segments. The remainder of the cells represent floor area which must be illuminated by lamps placed in certain of the cells. A lamp illuminates all cells in its row and column up to the edge of the puzzle, or up to an intervening black cell. No lamp is allowed to illuminate any other lamp, and the numbers in some of the black cells indicate the number of lamps which are adjacent to that cell both horizontally and vertically. Solving an Akari puzzle is a mouse only operation. A single click in any DARK cell will convert that cell to a blue NOLAMP cell. A second click will convert it to a LAMP cell, and all cells in its row and column will be converted to the yellow LIT condition. One more click will convert it back to a DARK cell, and appropriate LIT cells will also be converted back to the DARK condition.>

The higher the number of the puzzle, the more challenging it is. Click here to see the solution to Akari 1, the easiest one, here.

Important note for Mac users: In order to print your answer, move the Congratulations message to the side so that you can see your answer. Then hit Shift-cmd-4, and draw a box around your answer and the Congratulations message. A picture file of your answer will appear on your desktop, which you can open and print. If you close the window without taking a screenshot, you will not be able to see your solution again.

For PC users: First, locate the Prnt Scrn (SysRq) button on your keyboard.
Then get to the window you want to take a shot of.
If you want to take a shot of the whole screen, just press the Prnt Scrn button. If you want to take the window alone, press Alt and while holding the Alt key, press Prnt Scrn.
Go into Paint, in the start menu and click run. Type in mspaint.
Press Ctrl+V and then save the file. Done!