British Go Journal No. 18.  October 1972. Page 4.
Figure 1 |
Amateurs often tend to be too interested in attack and defence, and forget that Go is a game of territory. Both players in this example are shodan.
Diagram 1 |
BGJ omitted the number '3' from that black stone.
Diagram 2 |
Black is only thinking about attacking white; he should be thinking about making territory. Early in the game it is impossible to capture a group like this. If Black had played as in Dia 1 he could attack the white group later in the early middle game. Always try to make territory while attacking early on - a direct attack is useless.
Many amateurs are afraid of large moyos. They tend to reduce them early on or not at all. Both players in this example are shodan.
Figure 2 |
Diagram 3 |
Diagram 4 |
Both players here show a lack of feeling for influence and timing. Black 12 and 14 were unnecessary.