deciphering: 54 phrases in 14 subjects |
Chess | 3 |
Construction | 1 |
Cryptography | 2 |
General | 8 |
Genetics | 1 |
Gold mining | 1 |
Historical | 1 |
Information security and data protection | 11 |
Makarov | 8 |
Mathematics | 2 |
Military | 1 |
Security systems | 10 |
Technology | 4 |
Telecommunications | 1 |