Chess rules course part 2

Part 2 of this 8 part chess rules course aims to teach about the goal of chess and about the king and it's possibilities. Other chess pieces are covered in next (non-free) parts of this chess rules course. The course aims to be a user-friendly, safe, commercial-free and motivating way to learn chess, step by step. Every course part exists of an explanation, followed by exercises. There is no exam, or track of score; it's perfectly ok to make as many errors as needed. Because of random selection of exercises, repetition may occur. Please be patient. Repitition is the mother of skill. Every part of the chess rules course is a separate app, which has been constructed with NativeScript technology (https://www.nativescript.org/). DISCLAIMER The chess rules course parts are in beta version state, for possibly unlimited time. Install might be unsuccessful. The first 2 free parts are a fairly good indicator that the technology in use will install and work for every course part on your device. All parts share exactly the same technology. Enjoy learning the chess rules! The app doesn't collect, nor store any names, IP addresses or other identifying or private information. The app itself doesn't save the answers that you have given. No personal data is required for using this app, as far as the app is concerned, and no personal data is acquired by this app. It doesn't log user data, nor save user data. Exercises are chosen randomly and not adaptively. The app tries to run in-memory only, using no database. Before using this app or any other app, please study (among things) the terms and conditions of: your operating system, your hardware (PC, laptop, phone, tablet...), your Internet provider, other active apps, and other involved parties. We have no control over their actions and decisions, in particular with respect to acquiring and/or sharing and/or storing and/or deleting data by these other parties. Please contact them in case of questions. With respect to computer and/or mobile and/or tablet usage: always take appropriate precautions and use a firewall, antivirus software, and any other general safety precautions. Keep your operating system and your safety precautions up to date. Watch out with screen usage, keyboard usage etc., to prevent health problems varying from eye problems and repetitive stress injury to serious health complications due to lack of physical movement. Don't let children play with any app without following there behaviour. Make sure playing with apps is kept short for children, and make sure they vary it with play that involves the necessary movement. Never use apps while driving and/or during any situation in which your full attention is required for essential tasks. The content has been thoroughly tested and verified. Bugs and errors can never be excluded entirely. They can be reported by email to: chesstrainer@mail.com Beware this exposes your email address to me, to the mail.com provider, and possibly to other parties. We take no responsibility for the way they will use or handle your email address. I will use your email address solely for the purpose of replying to your mail. I will never send attachments nor web links, so delete any reply which contains any of these. Please understand if time does not permit to answer quicky, or if the mail box is filled up to the point that I cannot answer at all. Although I'm doing my best to process all mail, the priority must be on continuity of software quality and development.