Caro Classic

Five in a Row – known as Caro in Vietnam – is a classic strategy board game that takes a minute to learn and a lifetime to master. The same game goes by many names: Gomoku (gomokunarabe, 五目並べ) in Japan, Wuziqi (五子棋) or Gobang in China, Omok (오목) in Korea, and Caro in Vietnam. Think of it as Tic Tac Toe grown up: instead of three in a row on a tiny grid, you need five in a row on a large board. HOW TO PLAY Players take turns placing X or O on an empty square. X moves first. The first player to make an unbroken row of five – across, down, or diagonally – wins. Caro Classic uses the classic Vietnamese rule: a five that is blocked at both ends does not count. It is explained the first time you open the app. CHALLENGE THE AI Play against the computer at four levels: Beginner, Steady, Tough, and Master. Beginner is friendly for newcomers; Master is a real test – beating it takes careful planning several moves ahead. AI games work offline, and you can try one before you even sign in. PLAY ONLINE • Ranked matches – climb the season leaderboard. Every ranked game updates your rating. • Quick play – a casual match with a random opponent, no rating at stake. • Private rooms – create a room, share the code, and play a friend. FEATURES ◆ AI opponent with 4 levels: Beginner, Steady, Tough, Master ◆ Play the AI offline, no account needed to try ◆ Ranked seasons with a public leaderboard ◆ Quick casual matches and private rooms with a code ◆ 15×15 or 20×20 boards ◆ Timed games: 1, 3, or 5 minutes per player ◆ Resign or offer a draw during a match ◆ Profile with season rating, lifetime Elo, win/loss stats and a rating chart ◆ Full match history – replay any finished game move by move ◆ Report an opponent and choose not to be matched with them again ◆ Sign in with Apple, Google, or Game Center – no password; delete your account any time in Settings ◆ English and Vietnamese, light and dark themes