Beginner's Guide to Star Death - Singularity
Star Death - Singularity has four rules — three placement laws plus the edge clue system. Once these click, every puzzle becomes a satisfying chain of pure logical deduction.
The Four Rules
Fill every cell
Every cell on the grid must contain either a black hole (Black) or a white dwarf (White). There are no empty cells in a completed puzzle — every position must be resolved.
No three consecutive of the same type
You cannot place three or more of the same type in a row horizontally or vertically. If two consecutive cells are black holes, the next cell in that direction must be a white dwarf — and vice versa.
Balance each row and column
Every completed row and every completed column must contain exactly equal counts of black holes and white dwarfs. On a 6×6 board, each row needs exactly 3 of each type.
Respect the edge clues
Some puzzles show clues between adjacent cells at the board's edge. An = clue means both neighboring cells must be the same type. An × clue means they must differ.
Interactive Tutorial
How to Start a Puzzle
Start with edge clues
Edge clues give you direct information about two cells at once. An = clue means both cells share a type — if you determine one, you immediately know the other. An × clue means they differ — this limits possibilities and often triggers chain deductions.
Watch for two-in-a-row
Whenever you see two consecutive identical pieces, the cell immediately before and after that pair is forced — it must be the opposite type. This is the fastest source of free deductions in any puzzle.
Count remaining slots
Track how many of each type each row and column still needs. If a row already has 3 black holes and needs 3 more of each on a 6×6 board, all remaining cells in that row must be white dwarfs.
Use both pieces on the first tap
Do not hesitate to place a piece tentatively and see what it forces. If placing Black in a cell immediately violates a rule elsewhere, you know that cell must be White.
Common Beginner Mistakes
Forgetting to check columns
The "no three consecutive" rule applies to both rows and columns. A placement that is valid horizontally might create three in a column. Always check both directions after placing a piece.
Ignoring the balance rule early
The equal-count constraint is not just an end-of-puzzle check — it actively limits placements throughout the game. If a row already has its maximum count of one type, every remaining cell in that row is forced.
Missing edge clue chains
Edge clues at the border of the grid often chain together. An = clue combined with a "no three in a row" deduction can resolve an entire row or column in one pass.