Guides
In-depth strategy and how-to articles for the games on ujem. Each one is written to make a specific puzzle click — the deductions that turn guesswork into a chain of forced moves, plus the habits that make you faster. New guides are added regularly.
Puzzle strategy
- How to Solve Hitori: Techniques That Actually Work The triple rule, the pair-with-a-gap rule, fencing shaded cells, and using connectivity to break ties.
- Tents and Trees: A Solver's Strategy Guide Working from the edge clues, the place-and-fence habit, and tent-to-tree matching.
- Futoshiki Techniques: Reading the Inequalities Combining Latin-square logic with the greater-than signs, chains, and forcing the extremes.
- How to Solve Sudoku: From Scanning to Pencil Marks Cross-hatch scanning, naked and hidden singles, naked pairs, and pointing pairs.
- KenKen Strategy: Solving the Cages Cage arithmetic, listing combinations for plus and times cages, and the no-repeat trick.
- How to Solve Nonograms (Picross): The Overlap Method Reading the clues, the overlap technique for guaranteed cells, and edge logic.
- Minesweeper Strategy: Reading the Numbers The two basic deductions, the subtraction trick, and the 1-2-1 patterns.
- How to Solve Akari (Light Up): A Strategy Guide Using the numbered walls, the zero and four clues, and forced-bulb logic.
- How to Solve Hashi (Bridges): A Strategy Guide Counting an island's bridge capacity, forced high numbers, and staying connected.
- Takuzu Strategy: The Binary Grid, Solved The no-three-in-a-row rule, balancing each line, and using line uniqueness.
- Sokoban Strategy: Pushing Without Getting Stuck Avoiding deadlocks, the corner and wall traps, and planning from the goals backward.
Board & card games
- Reversi (Othello) Strategy: Corners, Mobility, and Fewer Discs Why corners win, the X-square and C-square traps, and the value of having fewer discs.
- Gomoku Strategy: Threats, Forks, and the Open Four Open threes and fours, building double threats, and when to attack versus block.
- 2048 Strategy: The Corner Method That Actually Works Anchoring your biggest tile, building a monotonic staircase, and the three-direction rule.
- Klondike Solitaire Tips: How to Win More Games Uncover face-down cards first, dig the biggest piles, and don't rush the foundations.