7
9
1
3
2
4
7
9
4
1
6
9
3
8
6
5
4
9
1
3
1
8
5
4
6
9
7
5
3
9
5
4
2
6
2
7
9
"The more constraints one imposes, the more one frees oneself. And the arbitrariness of the constraint serves only to obtain precision of execution." — Igor Stravinsky
"The more constraints one imposes, the more one frees oneself. And the arbitrariness of the constraint serves only to obtain precision of execution." — Igor Stravinsky
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.
Can you identify the technique needed to make the next move before filling in any digit? Name it, then use it.