オセロ - オンライン　対戦数 日本最大級

Overwhelmingly easy to play! This is the official Othello (TM) game app with the No. 1 total number of competitive players! Othello is a board game played on an 8x8 Go board, also known as Reversi. Why not experience the depth of Othello with this game born in Japan?

[Othello game to enjoy for free]
This Othello game can be enjoyed completely free of charge. Anyone can easily play, and it's a great opportunity to compete with friends and family. Even beginners can start with confidence!

[Enjoy in various modes]
Supports 1 player mode, 2 player mode, and online battle mode! You can enjoy Othello tactics in real time with players and friends from all over the country. Plan your strategy and toy with your opponents to win. A thrilling battle is waiting for you to test your Othello skills.

[Equipped with AI Othello live commentary mode]
It also features the industry's first AI live commentary mode. Even one person can enjoy the game.

[Refine your thinking even offline with Othello]
The appeal of Othello is that you can enjoy Othello anytime and anywhere without being connected to the internet. With offline play, you can easily play while commuting or on the go. This is a great opportunity to hone your strategy.

[Othello beginner-friendly operability]
Even beginners can play Othello with confidence. With simple operability, anyone can easily play. The rules and tactics are explained in an easy-to-understand manner, so even beginners are sure to have fun right away.

[Strongest Othello AI "HAYABUSA"]
You can play against the incredibly strong AI "HAYABUSA" and experience it like a professional. Develop your strategies and improve your skills as you play against intelligent and tactical AI.

[Enjoy the fun of Othello]
Othello is full of deep strategy and reading. With this game, you can experience the fun and skill of Othello at the same time. The content can be enjoyed by a wide range of people, from beginners to advanced users.

Would you like to enjoy the charm of Othello with the latest AI technology? It's free and easy to play, and you can hone your skills by competing against friends or the AI. Immerse yourself in the world of Othello with ease of use even for beginners!

◆Situations like this with Othello

While commuting: Enjoy your commute with Othello.
Waiting time: Even when you are waiting or lining up, you can kill time with Othello.
Break time: Feel free to play Othello during your break time at work or school.
With Friends: Othello online to play against friends.
At home: Have fun playing Othello during game time with your family.
Cafes and restaurants: Somehow, you can enjoy your free time with Othello.
Relaxing at night: Play Othello as a relaxing time before going to bed.
While traveling: Play Othello while waiting or traveling at your destination.
Competition: Participate in the Othello ranking and compete to see how strong you are.

◆I want to play against the strongest AI

・Othello fans who want to play against the strongest AI introduced on TV
・I want to improve my skills by challenging AI opponents
・I want an app that allows me to play against the highest level AI in Othello (Reversi)
・I want to practice tactics to beat AI
・I'm looking for Othello (Reversi) who can play against the strongest AI
・I want to test my skills at Othello against an AI opponent.
・I want an Othello game where I can compete against the strongest AI online.
・Looking for an app that allows you to enjoy Othello with the most difficult AI
・I want to play against the strongest computer AI and become the master of Othello.
・I want an Othello app that allows me to challenge AI opponents and hone my tactics.

◆Enjoy Othello online

・I like online competitive games and am looking for a two-player game.
・I want a game that can be played both online and offline
・I'm looking for an Othello that can be enjoyed both vertically and horizontally.
・I am good at Othello (Reversi) and want to hone my skills by playing against AI instead of playing against people.
・I'm looking for a standard board game like Othello that I can quickly enjoy while commuting to work or school.
・I like board games and want to play simple games while on the move.
・I want to learn again from the beginning to improve my Othello skills
・I want to enjoy playing Othello with AI instead of playing against people.
・I want an Othello competition app that allows me to compete online with players from all over the country.
・I want a game that even one person can enjoy without getting bored with Othello (Reversi), which is equipped with the strongest AI
・I'm nervous about playing against other people, so I'm looking for a simple game that I can enjoy alone.
・I want to play a simple game like Othello when I can't sleep at night
・I'm looking for a fun game that's free and popular to kill time and train my brain.
- Nostalgic games like Othello (Reversi) with simple rules are fun.
・I want a game that is easy and can be played by two people.
・I'm not good at interpersonal games, so I want a two-player game where I can play against people close to me.
・I'm good at Othello, so I want to be able to play it anytime.
・Looking for a game that can be played by two people
・I want a game where I can play against friends online or compete with players from all over the country.
・I like competing online and enjoy competitive games such as shogi.
・I want a two-player game that I can enjoy with my lover or friends.
・I'm tired of playing games by myself, so I want to enjoy two-player games, such as playing against friends.
・I'm looking for games that I can enjoy with my kids and games that I can play with them.
・I want a competitive game that I can enjoy with my friends.
・I like two-player reversi games and competitive games such as Go, Shogi, and Chess.
・I want to have both fun competitive games and solo games.
・I want a free app that allows me to have fun playing against Othello.
・I like fighting against other people, so I'm looking for a game that two people can play on the same smartphone.
・I want games and simple games that I can enjoy with my family.
・I'm looking for a two-player game where I can compete with my friends using a classic game competition app.
・I want a game that can be played by two people offline.
・I'm looking for a simple game with easy rules for two players that even seniors can enjoy.
・Two people want to enjoy a simple yet deep game like Othello (Reversi)

◆Difference between Othello and Reversi

Othello is a Japanese game invented by Goro Hasegawa in 1973.
Both Othello and Reversi are games played on an 8x8 Go board, but in Othello the initial arrangement of stones is 4 black and white alternating, but in Reversi there is no rule of alternation as long as there are 2 stones each.

(R) Othello is a registered trademark of Megahouse.