Terms of Use

About the Service

This site provides a free, browser-based Aeroplane Chess board for personal practice, rules instruction, same-device play, and temporary online rooms. It does not provide rank certification, prize tournaments, guaranteed fair competitive adjudication, or skill-based automatic matchmaking.

The service is provided “as is” and “as available.” We may correct the rules implementation; adjust AI search, the interface, storage methods, room capacity, or expiration periods; or suspend some features. We do not guarantee that the service will always be uninterrupted, entirely error-free, or suitable for every device and network.

Acceptable Use

• You may use the board normally for personal, family, or teaching purposes, share room links, and link to public pages on this site.
• Do not harass other players, impersonate a seat, disrupt a game, occupy public rooms abusively, or misuse spectator and reconnect features.
• Do not bypass connection-rate, room-capacity, permission, or security limits, and do not use automation to create rooms, retrieve content, or send requests in bulk.
• Do not attempt to access other rooms, server data, or system functions without authorization, and do not distribute malicious code or test attack traffic.
• You must have the right to share any text, screenshots, or attachments you send, and must omit unnecessary personal data about third parties.

Game Rules

This site uses Aeroplane Chess rules: play takes place on a 15×15 cross board, Red rolls first, a 6 is required to leave base, and the first player to get all four planes home wins. See Aeroplane Chess Rules for the complete legal moves and win conditions.

Differences Between Modes

• Against AI: Hints, undo, and move-by-move replay are available. Local data can be lost when site data is cleared.
• Same-device play: Undo and move-by-move replay are available. Neither player receives move suggestions. Local data can be lost when site data is cleared.
• Online rooms: The room service validates and synchronizes legal moves. There are no hints or unilateral undo; players may resign or offer a draw.
• Public and private rooms: Any visitor may join a public room. A private room relies on its link or room code to limit entry, and anyone holding that credential may still attempt to enter.
• Disconnection and expiration: Network loss, reconnection of the same seat elsewhere, closure by the host, or room timeout may end the current connection.

AI and Hints

AI moves and hints come from a time-limited search in the browser. Results may vary with the difficulty level, device performance, and search limit, and may not be theoretically optimal. They are provided only for practice and comparison, not as a learning outcome, skill rating, or tournament ruling.

Content and Intellectual Property

The page design, original writing, brand marks, image assets, and software implementation belong to Ply Yard or the relevant rights holders. These terms do not make the traditional rules of Aeroplane Chess proprietary to this site, but you may not copy the complete interface without permission, mirror the service, remove its source branding, or present a misleading copy in this site's name.

Availability and Liability

You are responsible for saving any game record or screenshot you need to keep long term. The site does not promise to retain local games, room state, or reconnectable seats permanently, nor does it guarantee that hints, AI moves, spectator state, and connections will be fully available in every situation.

To the fullest extent permitted by applicable law, Ply Yard is not liable for indirect, incidental, special, or consequential loss arising from service interruption, data loss, device performance, network failure, room closure, third-party entry, or reliance on AI suggestions. Liability that cannot legally be excluded is not limited by this paragraph.

Room Links

Private rooms have no account-based approval process; the complete link or room code is the access information. Share it only with intended players, and do not expose it in public posts, live streams, or unredacted screenshots. In a public room, expect unknown visitors to join or watch.

See the Privacy Policy for how local storage, room synchronization, and technical requests are handled.

Enforcement and Changes

To protect the service and other players, we may reject requests, restrict connections, close rooms, or block evident abuse. We may update these terms when features or legal requirements change; a published revision applies to subsequent access and use.

Contact Us

For questions about these terms, email contact@plyyard.com and identify aeroplane.plyyard.com.