Puzzle guides
How to play every game in the almanac — the rules, the named solving techniques, and answers to common questions. Each guide takes you from your first board to the weekend-hard ones.
How to Play Star BattlePlace two stars in every row, column and constellation. No two stars may touch — not even at the corners.How to Play AquariumFill each tank to its level so that every row and column holds exactly the number of water cells its clue demands.How to Play SlitherlinkDraw a single closed loop along the grid lines so that every numbered cell is touched by exactly that many of its sides.How to Play Tents and TreesPlace a tent next to each tree. Tents never touch — not even diagonally — and the numbers count the tents in every row and column.