weiqigo.plyyard.com 是 Ply Yard 工作室运营的围棋网页。你不需要注册账号，也不需要安装客户端；在电脑或手机上打开页面，就能在 9 / 13 / 19 路棋盘上开始一盘棋。
你可以在这里做什么
- 人机对弈：你执黑先走，与浏览器内的 AI 对练。可选温和陪练、初级对手、进阶练习。
- 同屏双人：两个人共用一台设备轮流落子，适合教学、亲子对弈和当面复盘。
- 在线房间：通过房间号或分享链接与朋友远程下棋；也可从公开大厅加入正在等待对手的对局。
棋盘支持提示、悔棋（人机与同屏）、逐手回放、路数切换，以及连续弃权后的点死子与数子终局。规则说明见 围棋规则，练棋建议见 围棋技巧。
棋局数据保存在哪里
人机与同屏模式会把当前路数的棋局进度保存在你这台设备的浏览器里（按 9 / 13 / 19 路分别存储）。刷新页面或暂时断网，通常仍能回到原来的盘面；点「新对局」才会清空当前路数的本地棋局。
在线房间会把落子同步给同房对手，并在你的设备上记住房间号、座位令牌和玩家标识，方便重连。本站不为下棋建立用户名或密码账号。
我们刻意没有做的事
- 不提供段位、积分排行或陌生人自动匹配。
- 不把本站表述为职业教练、棋谱讲解或比赛认证服务。
- 不要求你为了下棋提交邮箱、手机号或真实姓名。
这是一张免费练习用的网页棋盘。AI 强度会随设备性能、网络状况和所选模式而变化，适合日常练棋，不适合作为正式评级依据。
这个棋盘是怎么来的
我们做这个网站，不是因为觉得市面上的围棋软件不够好，而是希望有一张更安静的桌子：打开就能用，不用先填资料、不用等加载、不用猜功能藏在哪层菜单里。从 9 路到 19 路，每一盘棋结束后的数子，都按中国规则让双方一起确认——因为我们觉得，新手需要的不是“被告诉结果”，而是“看清楚这盘棋为什么这样结束”。
关于 Ply Yard
本站由 Ply Yard 维护。我们同时制作其他浏览器棋类工具，但各站点彼此独立运营。若你发现页面异常、规则显示与实际操作不一致，或在线房间无法连接，欢迎通过 联系我们 反馈。
开源组件与来源说明
本站的「高强度 AI」使用了开源围棋技术。浏览器端推理实现改编自web-katrain； 默认棋力数据来自KataGo发布的 g170-b6c96 测试模型。它们均按 MIT 许可提供。
上述开源项目与作者并未对本站提供背书或担保。本站将该模式定位为进阶练习用的浏览器 AI，不将其表述为职业棋力或比赛评级服务。
web-katrain 署名与 MIT 许可全文
来源：github.com/Sir-Teo/web-katrain
MIT License Copyright (c) 2026 Web KatRain Contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
KataGo 来源、署名与 MIT 许可全文
来源：github.com/lightvector/KataGo。 本站使用其公开的 g170-b6c96 测试模型；该模型适合浏览器内对弈，不代表专业级棋力。
The code in KataGo's repository relies on several other libraries, parts of libraries,
or external files. Licenses for those materials are available in the respective
readmes and license files in the KataGo repository. Some files also embed their
own notices where noted.
Aside from the above, the license for other content in the repository is:
Copyright 2025 David J Wu ("lightvector") and/or other authors of the content in this repository.
(See "CONTRIBUTORS" file for a list of authors as well as other indirect contributors).
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Additional disclaimer from David J Wu ("lightvector"): the license to the
KataGo repository's code is granted by David J Wu personally, not by any
past or present employer.