数独有九宫格没有数字时有什么技巧?
/iknow-pic . cdn . BCE Bos . com/55e 736d 12 F2 EB 938 aa 8 b 0960d 9628535 E4 DD 6 FB 9 " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt;/iknow-pic . cdn . BCE Bos . com/55e 736d 12 F2 EB 938 aa 8b 0960d 9628535 e 4d D6 FB 9?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/55e 736d 12 F2 EB 938 aa 8 b 0960d 9628535 E4 DD 6 FB 9 "/>
第一步:先看9个数字,哪个数字出现的次数多,9出现6次,7出现5次,那么就从这两个数字开始吧。
/iknow-pic . cdn . BCE Bos . com/a 71 ea 8d 3 FD 1 f 4134 F5 a 476 EC 291 f 95 CAD 0 c 85 e 94 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >中。/iknow-pic . cdn . BCE Bos . com/a 71 ea 8d 3 FD 1 f 4134 F5 a 476 EC 291 f 95 CAD 0 c 85 e 94?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/a 71 ea 8d 3 FD 1 f 4134 F5 a 476 EC 291 f 95 CAD 0 c 85 e 94 "/>
/iknow-pic . cdn . BCE Bos . com/83025 aafa 40 f 4 bfb 5 b 2 aedc 60 f 4 f 78 f 0 f 63618ad " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt;/iknow-pic . cdn . BCE Bos . com/83025 aafa 40 f 4 bfb 5 b 2 aedc 60 f 4 f 78 f 0 f 63618ad?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/83025 aafa 40 F4 bfb 5 B2 aedc 60 F4 f 78 f 0 f 63618ad "/>;
这样表格里的7和9都会被填上,以后可以忽略这两个数字。
第二步:看一个数字是否在1-3,4-6,7-9行中出现两次,这样我们就可以推断出另一个数字出现在这三行或三列的什么地方。例如,1和3列中有2,因此不难得出结论,另一个2位于第2行和第2行的交点处。我的习惯是先横后竖。
/iknow-pic . cdn . BCE Bos . com/79 F0 f 736 AFC 37931ad 92 f 5b 7b 7 C4 b 74542 a 911ad " target = " _ blank " title = " " class = " ikqb _ img _ alink " >中。/iknow-pic . cdn . BCE Bos . com/79f 0 f 736 AFC 37931ad 92 f 5b 7 C4 b 74542 a 911ad?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/79f 0 f 736 AFC 37931 ad 92 f 5b be 7 C4 b 74542 a 911ad "/>
/iknow-pic . cdn . BCE Bos . com/810a 19d 8 BC 3 EB 1356 f 54 c 429 aa 1 ea 8d 3 fc 1f 4494 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >;/iknow-pic . cdn . BCE Bos . com/810a 19d 8 BC 3 EB 1356 f 54 c 429 aa 1 ea 8d 3 fc 1f 4494?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/810a 19d 8 BC 3 EB 1356 f 54 c 429 aa 1 ea 8d 3 fc 1f
就这样,表格里填了很多数字。
第三步:我的习惯是从左上角开始,我会发现如果要同时满足存在性和唯一性,我可以推断出所有的数字。
/iknow-pic . cdn . BCE Bos . com/43 a7d 933 c 895d 143348 c 97 b 17ff 082025 BAF 07 ad " target = " _ blank " title = " " class = " ikqb _ img _ alink " >/iknow-pic . cdn . BCE Bos . com/43 a7d 933 c 895d 143348 c 97 b 17ff 082025 BAF 07 ad?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/43 a7d 933 c 895d 143348 c 97b 17ff 082025 BAF 07 ad "/>;
答案就出来了。
/iknow-pic . cdn . BCE Bos . com/a 1 EC 08 fa 513d 2697 b 9047 BCF 59 fbb 2 FB 4216d 849 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >中。/iknow-pic . cdn . BCE Bos . com/a 1 EC 08 fa 513d 2697 b 9047 BCF 59 fbb 2 FB 4216d 849?x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/a 1 EC 08 fa 513d 2697 b 9047 BCF 59 FB 2 FB 4216d 849 "/>