Encrypting messages using chess games

[Lois]

Encrypting messages using chess games
       It is well known that the Internet is very tightly controlled by security services. It is possible to develop a system for exchange of information with the help of chess games on the Internet. for example
       1. b2-b4 All right, children are fed. e7-e5 2. Bb2 very pleased to kiss his grandfather. Grandpa had died Bxb4

[Taomeow]

1. e4  d5  2. exd5  Nf6  3. d4  Bg4  4. Bb5+  c6?!

[Lois]

1. e4  d5  2. exd5  Nf6  3. d4  Bg4  4. Bb5+  c6?!

Quite interesting. If you meet a blind grandmother, move it across the street.

[Miffymog]

4. Bb5+ Nd7