Game Controls
A complete reference for how to interact with Star Death - Singularity — from placing pieces to reading edge clues and selecting your board size.
Interactive Interface Guide
Explore every part of the Singularity interface with interactive buttons and settings. Tap each element to see what it does.
Board Size
Choose from three grid sizes. Larger boards have more cells and are
generally harder, but difficulty also depends on how many logical
steps the solver needs to reach a solution.
6×6
8×8
10×10
6×6 — Easy & Medium · great for beginners.
8×8 — widest range of difficulties, the sweet spot.
10×10 — mostly Hard–Expert · a serious challenge.
The Puzzle Board
The board is a grid of cells to fill with Black and White pieces.
Every row and column must contain exactly half black and half white cells,
with no three consecutive same-color cells in any direction.
Markers on cell edges add extra rules — see the badges on the board below.
= means the two adjacent cells must match. × means they must differ.
Tapping Cells
Tap any empty cell to place a Black piece. Tap again to change it to White.
Tap once more to clear the cell back to empty. Each cell cycles through three states. Right-click to reverse the cycle direction.
Empty
→
Black
→
White
Tip: Locked cells (slightly gray background) are pre-filled and cannot be changed.
Puzzle Status
The status panel shows the puzzle name, a share option (to share the current puzzle),
a color-coded difficulty badge, game status text,
and the elapsed timer at the bottom.
Puzzle Status
E0052
Cell: [R7][C3], [White], Marker:1
EASY
Note: The share option does not work for random puzzles.
Status Messages
The game gives real-time feedback. Red signals a
conflict, blue is a hint or info message, and
green means you've solved the puzzle.
At least one mistake exists.
Same or Opposite: (=) must have the same piece next to it and (x) must have the opposite.
Everything looks OK so far.
Action Buttons
Tap any button below to see what it does.
Previous Puzzle — goes to the previous puzzle in the currently selected board size.
Settings
Tap any row below to see what each option does.
Settings
Auto CheckHighlight rule violations as you fill the board.
Auto Check — when on, any cell that currently breaks a rule (three in a row, count exceeded, or an edge constraint mismatch) is highlighted in red. Turn it off for a cleaner look if you prefer to check manually.
Hide TimerHide the elapsed time display.
Hide Timer — hides the elapsed time counter. Useful if the ticking clock adds unwanted pressure, or you prefer to focus purely on the logic.
Accessibility
Grayscale ModeTint locked cells with gray instead of blue.
Grayscale Mode — replaces gameboard colors with a grayscale palette.
Puzzle DifficultiesOnly show puzzles matching selected difficulties.
Easy
Medium
Hard
Very Hard
Expert
Puzzle Difficulties — filter which difficulty levels appear when browsing boards.
Ready to play?
Now you know the controls — fill the grid.