games: add Digit Challenge for constrained arithmetic
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 5/5
- 预计耗时
- 一周以上
- 新手友好度
- 35/100
- Issue 类型
- 功能
- 描述清晰度
- 基本清楚
- 活跃度
- 活跃
- 技术栈
- next.js, react, typescript
调研方向
Start by reading #24 and its dependency #58, then locate the existing games and shared timed-practice lifecycle. Define the digit and precedence rules before implementing the generator and answer validation; the issue names no files or tests to start from. Done means the specified validation and generator tests pass, a browser test completes, corrects and restarts a round, and the game remains separate from Digit Recall.
由索引模型根据 Issue 内容生成。
描述
Part of #24. Depends on #58.
Student problem
Students need practice completing arithmetic expressions under digit-use constraints, with feedback that explains valid reasoning.
Scope
- Present an expression with missing operands and a target, initially forms such as
a × b + c = target. - Let students choose distinct digits from 1 to 9. Clearly state available digits, reuse restrictions and operator precedence.
- Generate solvable puzzles and accept any assignment that satisfies the expression and constraints, including alternatives to the generated solution.
- Increase difficulty through documented expression templates; keep operand selection and undo usable with keyboard/touch.
- Show a worked solution after submission in learning mode; timed practice uses the shared lifecycle.
- Keep free guest practice. Additional quick-calculation templates can follow once the core rules are reliable.
Done when
- Tests cover valid alternate answers, duplicate/out-of-range digits, incomplete input, precedence, impossible generated targets and difficulty bounds.
- Generators prove at least one legal answer exists.
- A browser test completes a round, corrects an operand and restarts.
Keep this separate from the existing Digit Recall memory exercise.
- 主要语言
- TypeScript
- 星标
- 1
- 派生
- 1
- 平均合并
- 8 小时 58 分钟
- 30 天内合并 PR
- 37
环境准备
- 提供 Dockerfile 或 Docker Compose 文件
- 有 Pull Request 模板
- 阅读贡献指南
从这里开始
- 先读完整个 Issue，再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库，在一个分支上完成修改。
- 提交 Pull Request，并在描述里引用这个 Issue 编号。
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area:frontend bug
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enhancement good first issue
难度 1/5 1-3 小时 新手友好度 90/100
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