Question

这题数独怎么解

卡这了，怎么解开下一个关键的数字，谢谢。不需要全部答案，我想我可能就是卡了一两步，谢谢

Answer 1

R1C5单元格是6，以下是现在的情况到解出6的解题过程
Locked Candidates Type 1 (Pointing): 6 in b2 => r1c1<>6
Locked Candidates Type 1 (Pointing): 6 in b4 => r6c5<>6
Locked Candidates Type 2 (Claiming): 1 in r3 => r1c45<>1
W-Wing: 4/8 in r1c7,r8c5 connected by 8 in r9c47 => r1c5<>4
Empty Rectangle: 4 in b2 (r35c3) => r5c4<>4
Uniqueness Test 4: 1/6 in r2c12,r6c12 => r26c1<>1
XYZ-Wing: 3/4/6 in r26c1,r5c3 => r5c1<>4
Hidden Rectangle: 4/9 in r3c46,r8c46 => r3c4<>4
XY-Chain: 4 4- r6c9 -3- r7c9 -2- r8c9 -8- r8c5 -4 => r6c5<>4
X-Wing: 4 r26 c19 => r1c19<>4
Naked Pair: 1,3 in r15c1 => r6c1<>3
Locked Candidates Type 1 (Pointing): 3 in b4 => r5c456<>3
W-Wing: 3/1 in r1c1,r6c5 connected by 1 in r26c2 => r1c5<>3
剩下可以得出 r1c5=6了。
完整答案
.---------.---------.---------.
| 1 7 2 | 3 6 5 | 4 9 8 |
| 4 6 9 | 7 2 8 | 5 3 1 |
| 8 5 3 | 9 4 1 | 7 2 6 |
:---------+---------+---------:
| 2 8 5 | 6 9 4 | 3 1 7 |
| 3 9 4 | 8 1 7 | 2 6 5 |
| 6 1 7 | 5 3 2 | 9 8 4 |
:---------+---------+---------:
| 9 4 8 | 2 7 6 | 1 5 3 |
| 5 3 1 | 4 8 9 | 6 7 2 |
| 7 2 6 | 1 5 3 | 8 4 9 |
'---------'---------'---------'

Answer 2

第三列第三个数

追问

3和4都可以呀。怎么确定，能分析下吗？

Answer 3

要原题，可能已经出错了。