答案:
573921648
649835712
128467953
261754389
987316524
435298167
814579236
752683491
396142875
详细步骤:
1:(6,7)=1区块摒余
2:(2,9)=2
3:(9,6)=2
4:(6,4)=2
5:(4,1)=2
6:(7,8)=3区块摒余
7:(4,7)=3
8:(9,5)=4
9:(3,8)=5
10:(6,3)=5
11:(7,9)=6区块摒余
12:(6,8)=6
13:(8,5)=8
14:(8,9)=1
15:(7,2)=1
16:(3,1)=1
17:(1,6)=1
18:(5,5)=1
19:(5,4)=3
20:(2,5)=3
21:(1,3)=3
22:(9,1)=3
23:(9,9)=5
24:(8,2)=5
25:(5,6)=6
26:(3,5)=6
27:(9,3)=6
28:(2,1)=6
29:(1,7)=6
30:(7,5)=7区块摒余
31:(8,3)=2
32:(3,2)=2
33:(2,2)=4区块摒余
34:(3,4)=4区块摒余
35:(4,5)=5行列摒余
36:(6,5)=9
下面用到候选数法,就不列了.