흥칫뿡 한판승부 - AI 보드게임

It is your turn.

Hanpanseungbu is a strategy app where you compete against AI in 8 classic board and deduction games. Every game counts towards your ELO rating. Winning against a strong opponent boosts your score significantly, while losing requires you to climb back up. The rating system is real, competition is endless, and the only way to improve is to keep playing.

[ Strategy Games ]

Chess -- Complete FIDE rules including castling, en passant, and pawn promotion. Compete against five levels of AI, ranging from Level 1, which intentionally makes mistakes for beginners, to Level 5, which strictly punishes every error. Chess ELO is tracked independently.

Janggi -- A unique Korean strategy board game. It perfectly implements the unique movement and palace rules for the King, Chariot, Cannon, Horse, Bishop, Guard, and Pawn. Choose between Cho (Green) and Han (Red). A Level 5 AI will play with various styles, ranging from defensive to offensive.

Omok -- Place stones to complete a 5-in-a-row. Selecting Renju rules for advanced players (banned moves) transforms simple concepts into a deep tactical showdown. The AI ​​scales from casual to semi-optimal.

Reversi (Othello) -- Surround and flip your opponent's stones. The AI ​​understands corner strategies, side plays, and endgame maximization. It looks simple on the surface, but its depth is brutally deep.

Connect 4 -- Drop stones onto a vertical grid to be the first to connect four. The AI ​​blocks your placement with forward scouting while simultaneously building its own lines.

Tic-Tac-Toe -- Classic 3x3 and extended 5x5 variations. In 3x3, the Minimax AI is invincible -- challenge it to see if a tie is possible. On the 5x5 board, true strategic possibilities unfold.

[ Deduction Games ]

Number Baseball -- The AI ​​determines a secret 3- or 4-digit number. For every guess, it returns the number of Strikes (correct number, correct location) and Balls (correct number, incorrect location). Deduce the answer with the fewest moves.

Mastermind -- Solve hidden color sequences using logical elimination. With every guess, the number of correct colors and correct positions is revealed.

[ ELO Rating System ]

Hanpansung uses the ELO Rating System, the same mathematical framework used by the International Chess Federation.

- Maintains independent ratings for each game type.

- You earn more rating points when defeating a strong AI than when defeating a weak AI.

- Progresses through Beginner → Intermediate → Advanced → Expert → Master → Grandmaster ranks.

- Tracks detailed statistics such as win rate, longest winning streak, average moves per game, and rating trends.

[ Learn from Every Game ]

The replay function allows you to review completed games move by move. You can try different moves during gameplay using the undo function. Check AI recommended moves at key turning points to understand where the game's momentum shifted.

**Learn from Every Game ** [ Why Hanpanseungbu? ]

You can play serious board game matches anytime, even when you are alone. A match against an AI opponent starts instantly with a single touch, without any waiting time. It works perfectly offline, and all match records are automatically saved.

Supports both Korean and English.

Hanpanseungbu is an app for players who want to win, not just players who want to win, but players who want to know why they won and want to win more often. It is your turn.