Popular game from Eastern Europe that challenges your mind.

Players take turns placing dots on the empty intersections, with the first dots being placed in the highlighted area at the center of the board. Be sure to keep track of the timer on the screen, as you must finish your move within the given time limit or you'll forfeit.
If two dots of the same color are horizontally, vertically, or diagonally adjacent, they'll be considered connected. When connected dots form an enclosed area, they'll be connected by lines on the board. Any opponent dots within the enclosed area will be dead and no longer usable.
If an area doesn't contain an opponent's dots, both players can continue placing dots within it. However, if an opponent places a dot within an enclosed area, that dot will be dead, and the area will be enclosed.
The game will end when all the intersections on the board are filled with dots or by clicking the "End Game" button on the right-hand side of the screen. If your opponent agrees, the game can end early. Who will become the conqueror on the board? Try it out and find out!
Version 1.4.0: Added time limit