 |
| |||
| chessboard method (разбивки делянок) | |||
| шахматная система: 15 phrases in 7 subjects |
| Chess | 1 |
| Construction | 3 |
| Geology | 1 |
| Makarov | 1 |
| Military | 1 |
| Mining | 6 |
| Seismology | 2 |
|
| |||
| chessboard method (разбивки делянок) | |||
| шахматная система: 15 phrases in 7 subjects |
| Chess | 1 |
| Construction | 3 |
| Geology | 1 |
| Makarov | 1 |
| Military | 1 |
| Mining | 6 |
| Seismology | 2 |