Rules, strategy, and answers for every game on the site
Knowing the rules gets you in the game; knowing the strategy wins it. Each guide below covers the complete rules of the game, the core strategic ideas that separate beginners from strong players, concrete tips you can apply immediately against our AI (or your friends), and answers to the questions players ask most. Pick a game, read for five minutes, and go win something.
The classic vertical connection game. Face an AI powered by bitboards and deep search, or challenge a friend online.
American checkers on the classic 8x8 board with forced captures, kings, and four AI difficulty levels.
Also known as Othello. Sandwich your opponent's discs to flip them. Every move can swing the whole game.
The ancient sowing game (Kalah rules). Count seeds, chain extra turns, and out-capture a clever AI.
Complete chess with castling, en passant, and promotion. Play a searching AI engine or a friend in real time.
Five in a Row on a 15x15 board. Build open fours and double threats before the AI shuts you down.
Tic-tac-toe, evolved: win small boards to claim squares on the big board, while every move dictates your opponent's options.
Draw lines, complete boxes, and go again. Mastering chain control turns this childhood doodle into a real strategy game.
A medieval classic with three phases: place, move, and fly. Form mills of three to capture the AI's men.
The 5,000-year-old racing game. Roll dice, hit blots, build primes, and bear off before the AI does.
Place your fleet and call your shots. The hard AI hunts with probability maps, so hide your ships well.
The elegant connection game on an 11x11 rhombus. One player connects left-right, the other top-bottom. Someone always wins.
Place stones to get five in a row or capture 10 opponent stones. A classic strategy board game.
The 4,000-year-old strategy game. Place stones, surround territory, and capture groups on 9x9 to 19x19.
Move and jump your marbles across the star board to the opposite triangle before the AI.
The fast-paced shedding card game. Empty your hand first, use eights wisely, and don't get stuck drawing.
Classic casino blackjack against the dealer with splitting, doubling down, and optional basic-strategy hints.
Classic Klondike solitaire with drag-and-drop, unlimited undo, and score tracking. The perfect way to unwind.
Classic two-player card game. Form sets and runs, reduce deadwood, and knock or go gin.
Classic four-player card game. Avoid taking hearts and the Queen of Spades.
Classic four-player trick-taking card game. Bid on tricks and play to reach 500 points.
Classic pegging game. Discard to the crib, count fifteens and pairs, race to 121 points.
The famously addictive sliding-tile puzzle. Merge matching tiles, plan your corners, and chase ever-bigger numbers.
The desktop legend with three board sizes, flagging, chording, and a guaranteed-safe first click.
Freshly generated puzzles at four difficulties with pencil marks, error checking, and a solve timer.
Guess the five-letter word of the day in six tries. Everyone gets the same word - come back every day to keep your streak alive.
The classic concentration game. Flip cards to find matching pairs in as few moves as possible.
The classic 15-puzzle with three grid sizes. Slide numbered tiles into order.
Solve picture logic puzzles by filling in cells according to number clues.
Fill digits so each run of cells adds up to its clue number. A cross-sum number puzzle.
Match pairs of free tiles to clear the board. Classic tile-matching solitaire.