Recently I was skimming the forums where I advertised my new puzzle game, Dokusen, and realized someone had made a comment about how they had no idea how the rules worked. I was planning on writing a post about the game’s rules anyway, but this made me decide to do it sooner rather than later.
Each stage has a different board size and shape, along with a different set of players. The types of players are as follows:
1) User player: the person playing the game, present on all board levels.
2) Inactive player: a player who begins the stage owning one or more squares. This player type does not place any more tiles with intent, but the existing tiles will spread automatically.
3) Active player: Same as an inactive player except it gets to play a new tile once each turn like the user player.
Basic game flow
1) User player plays a tile of their color in any legal square. Legal squares are defined as any square except one already owned, in other words either a black square (not owned) or one of a different color which is owned by an enemy (active or inactive player).
2) If present, one or more active players each play their color tile on any legal square. The level of skill of the active players depends on the stage.
3) All tiles that are currently on the board are then expanded or “grown” to legal spaces, if any.
4) Special effects will then take place (such on meteors on stages where they appear)
5) Back to step 1, where the user player goes again. The game ends when all the squares are taken. If the user player owns over half (50%) of the available squares, that stage is won and player proceeds to the next stage. Otherwise, it is a loss and the stage must be replayed.
The only other thing that needs to be explained is the rules for “growing”. They are actually pretty simple – a square will change ownership to whatever color is surrounding it on more sides (up, down, left, right) than any other color, excluding black. To see this in action, let’s look at the first few moves for level 5, which contains a inactive player owning four squares at the start of the level.
The user player decides to play on the topmost square, and you can see this represented by a white dot. After that, the tiles around squares of both the user player and the inactive grow and expand outwards.
Let’s talk about two squares and why they changed colors during the growing process.
1) Top left blue square above: this one was bordered by black on left and bottom, nothing above, and blue on the right (the one the user player just put down). Since black doesn’t count, the square was ‘dominated’ by blue and so it became blue.
2) Square in the middle of the board: this one was bordered on all sides by orange, so it became orange.
For the next turn, the user player (blue) decides to play on the bottom center of the board. During the growing stage, this new blue square expands to the left and right, but does not grow up. This is because there is an orange square two above it, such that the square about the newly placed square is bordered by black on the left and right, orange on the top, and blue on the bottom. Since there is a tie, the color doesn’t change.
I hope this explanation made the rules a little clearer, but if you have any questions feel free to comment on this post.
I recorded a short video of the above game which can see below. I ended up loosing, but the purpose of this post wasn’t to teach strategy. I may do another post on that later.