数独游戏
在线数独游戏，支持难度选择与实时提示，提升逻辑思维
数独爱好者常因找不到合适难度或缺乏提示而卡关，本工具提供在线数独游戏，支持自定义难度生成棋盘，并实时验证填写正确性，帮助用户锻炼逻辑推理能力。数独是一种基于9×9格子的数字填充游戏，需满足每行、每列及每个3×3宫格内数字1-9不重复。
输入需遵循数独基本规则，禁止重复数字；本地浏览器自动保存进度，无需担心数据丢失；不支持批量生成或导出功能。
高级玩家可尝试“候选数”模式，预先标记可能数字；常见解题技巧包括唯一候选数法、区块排除法等，例如当某行仅剩一个数字可填时，系统会自动提示。
API access is not yet available for this tool. Contact support if you need integration.
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