Simple Defense

As a beginner, learning to protect your pieces is essential! 对于初学者来说，学习如何保护自己的棋子至关重要！ For those starting out, a fundamental chess skill is learning how to defend your pieces from capture. 对于那些刚开始接触国际象棋的人来说，一项基本的技能是学会如何保护你的棋子免受攻击。 Every player must master basic defensive techniques like retreating a piece, protecting it with another piece, capturing an attacking piece, or intercepting an opponent's threat. 每位玩家都必须掌握基本防守技巧，如撤退棋子、用另一枚棋子保护它、吃掉进攻的棋子或拦截对手的威胁。 By practicing a large number of exercises, you can solidify this knowledge and improve your overall game. 通过练习大量的练习题，你可以巩固这些知识并提高你的整体水平。 This course offers over 2800 exercises featuring crowded board positions, making it an excellent tool for the rapid training of chess novices. 本课程提供了超过2800个练习题，包含拥挤的棋盘局面，是快速训练国际象棋新手的绝佳工具。

This course is part of the Chess King Learn series (https://learn.chessking.com/), a groundbreaking chess instruction method. 本课程属于“Chess King Learn”系列（https://learn.chessking.com/），这是一种开创性的国际象棋教学方法。 The series includes comprehensive courses on tactics, strategy, openings, middlegame, and endgame, categorized by skill level from beginner to professional. 该系列包括战术、战略、开局、中局和残局的全面课程，按技能水平从初学者到专业选手分类。

Use this course to enhance your chess understanding, learn new tactical ideas and combinations, and put that knowledge into practice. 使用本课程来增强你的国际象棋理解力，学习新的战术思路和组合，并将这些知识付诸实践。

The program acts as your personal coach: it assigns exercises and provides support when you're stuck. 程序充当你的私人教练：它分配练习题并在你卡住时提供支持。 You'll receive hints, explanations, and even see refutations for common mistakes. 你会收到提示、解释，甚至看到常见错误的反驳。

Program advantages: 程序优势如下：

♔ High-quality, double-checked examples ♔ 高质量且经过双重检查的示例
♔ Requires input of all key moves specified by the trainer ♔ 需要输入教练指定的所有关键着法
♔ Tasks at varying difficulty levels ♔ 不同难度级别的任务
♔ Diverse objectives to achieve in each problem ♔ 每个问题都有多样化的目标需要实现
♔ Helpful hints provided after an error ♔ 错误后提供有用的提示
♔ Refutations shown for typical incorrect moves ♔ 显示典型错误着法的反驳
♔ Option to play out any position against the computer ♔ 可以选择与电脑对弈任何局面
♔ Clear, structured table of contents ♔ 清晰、结构化的目录
♔ Tracks rating (ELO) changes throughout your training ♔ 在整个训练过程中跟踪等级（ELO）变化
♔ Customizable test mode ♔ 可定制的测试模式
♔ Bookmark your favorite exercises ♔ 收藏你喜欢的练习题
♔ Optimized for tablet displays ♔ 针对平板显示优化
♔ No internet connection required ♔ 无需互联网连接
♔ Sync your progress across devices by linking the app to a free Chess King account (Android, iOS, Web) ♔ 通过将应用程序链接到免费的Chess King账户，在不同设备间同步你的进度（Android、iOS、Web）

The course includes a free section to evaluate the program. The free lessons are fully functional, letting you test the app under real conditions before unlocking the following topics: 课程包含一个免费部分以评估程序。免费课程功能齐全，让你在实际条件下测试应用程序后再解锁以下主题：

1. Retreat 1. 撤退
2. Defending with another piece 2. 用另一枚棋子防守
3. Capturing an attacking piece 3. 吃掉进攻的棋子
4. Interception 4. 拦截
5. Defending against checkmate 5. 将死防御
6. Mixed difficulty 6. 混合难度

What's New in the Latest Version 2.4.2 ### 最新版本2.4.2的新增功能

Last updated on Jul 7, 2023* New Spaced Repetition training mode blends missed exercises with new ones for optimal puzzle selection. 最后更新于2023年7月7日 新的间隔重复训练模式将错过的练习与新内容结合，以实现最佳的谜题选择。
* Added ability to run tests on bookmarked exercises. * 增加了对收藏的练习题进行测试的功能。
* Set a daily puzzle goal to maintain your skills. * 设置每日谜题目标以保持你的技能。
* Track your daily streak for consecutive days of completed goals. * 追踪连续完成目标的每日连胜记录。
* Various bug fixes and improvements. \ 各种错误修复和改进。