Exit Exists 2021 preparation

Compiler: Andrey Bogdanov

This set contains puzzles which are similar to puzzles of the "Exit Exists" competition which is held in the middle of February 2021.
Choose the puzzle in the list and you will see the puzzle grid at the right. Press "Start" button to see clues and start solving.
Most of the puzzles in this set are harder than the corresponding puzzles in the competition and so don't worry if you can't solve some of them. However, if you succeed in solving this puzzle set, then you can win the competition easily. In this case visit our archive where you can find puzzles for the champions.

#	Puzzle
1	Paint by Max (5x5)
2	Paint by Max (6x6)
3	Paint by Max (7x7)
4	Paint by Max (7x7)
5	Paint by Max (7x7)
6	Paint by Max (8x8)
7	Paint by Hex (2x2)
8	Paint by Hex (3x3)
9	Paint by Hex (3x3)
10	Paint by Hex (5x4)
11	Paint by Hex (4x4)
12	Paint by Hex (4x4)
13	Star Battle (8x8)
14	Star Battle (9x9)
15	Star Battle (10x10)
16	Star Battle (11x11)
17	Akari (6x6)
18	Akari (7x7)
19	Akari (9x9)
20	Akari (9x9)
21	Akari (8x8)
22	Akari (10x10)
23	Perfect Square Sudoku (6x6)
24	Perfect Square Sudoku (6x6)
25	Perfect Square Sudoku (6x6)

Akari

Author: rob

Place light bulbs in selected white cells so that each white cell is illuminated. Light bulbs illuminate every white cell in all four orthogonal directions until blocked by a black cell. No light bulb can be illuminated by another light bulb. Clue numbers correspond to the number of light bulbs in the four orthogonally adjacent cells.

Example puzzle

More about this puzzle

Grid control: Click the mouse button at the selected cell to set/remove a bulb. Second click will put auxiliary cross sign, which doesn't affect correctness of the solution, but helps visually You also can draw a line to mark illuminated cells. More details about grid control are at the help page.