# Catnee Sudoku - LA Times 2023-04-29

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May 4th, 2023
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1. Creating fresh checkpoint for puzzle 604000053000000092080400710800071500090305000025000070036014000100702000500806024
2. Conversation started at: 2023-05-04 10:21:27.127858
3. ----
4. user: Find all cells that have only one candidate in this Sudoku puzzle in one shot like a champ without any mistakes and list all of them
5.
6. Then check your findings step by step carefully, analyzing every proposed cell by writing existing numbers in the same row, column and square of a proposed cell. don't write your candidate number first, make a guess with a cell, check existing numbers and only then write a complete list of candidates, and only then check if there are more than one
7.
8. If they really are cells with one candidates, fill them by writing new state of the puzzle
9.
10. (optional) Point to the mistakes if there are any
11. user: 6 _ 4 | _ _ _ | _ 5 3
12. _ _ _ | _ _ _ | _ 9 2
13. _ 8 _ | 4 _ _ | 7 1 _
14. -+------+------+------
15. 8 _ _ | _ 7 1 | 5 _ _
16. _ 9 _ | 3 _ 5 | _ _ _
17. _ 2 5 | _ _ _ | _ 7 _
18. -+------+------+------
19. _ 3 6 | _ 1 4 | _ _ _
20. 1 _ _ | 7 _ 2 | _ _ _
21. 5 _ _ | 8 _ 6 | _ 2 4
22.
23. user: Here are breakdown of squares:
24. upper-left square contains cells: c(A,A) c(A,B) c(A,C) c(B,A) c(B,B) c(B,C) c(C,A) c(C,B) c(C,C)
25. upper-center square contains cells: c(A,D) c(A,E) c(A,F) c(B,D) c(B,E) c(B,F) c(C,D) c(C,E) c(C,F)
26. upper-right square contains cells: c(A,G) c(A,H) c(A,I) c(B,G) c(B,H) c(B,I) c(C,G) c(C,H) c(C,I)
27. middle-left square contains cells: c(D,A) c(D,B) c(D,C) c(E,A) c(E,B) c(E,C) c(F,A) c(F,B) c(F,C)
28. middle-center square contains cells: c(D,D) c(D,E) c(D,F) c(E,D) c(E,E) c(E,F) c(F,D) c(F,E) c(F,F)
29. middle-right square contains cells: c(D,G) c(D,H) c(D,I) c(E,G) c(E,H) c(E,I) c(F,G) c(F,H) c(F,I)
30. bottom-left square contains cells: c(G,A) c(G,B) c(G,C) c(H,A) c(H,B) c(H,C) c(I,A) c(I,B) c(I,C)
31. bottom-center square contains cells: c(G,D) c(G,E) c(G,F) c(H,D) c(H,E) c(H,F) c(I,D) c(I,E) c(I,F)
32. bottom-right square contains cells: c(G,G) c(G,H) c(G,I) c(H,G) c(H,H) c(H,I) c(I,G) c(I,H) c(I,I)
33.
34. Here are analysis by sectors:
35.
36.
37. user: Rows:
38. In row A, we have 6, 4, 5, 3.
39. In row B, we have 9, 2.
40. In row C, we have 8, 4, 7, 1.
41. In row D, we have 8, 7, 1, 5.
42. In row E, we have 9, 3, 5.
43. In row F, we have 2, 5, 7.
44. In row G, we have 3, 6, 1, 4.
45. In row H, we have 1, 7, 2.
46. In row I, we have 5, 8, 6, 2, 4.
47.
48. Columns:
49. In column 1, we have 6, 8, 1, 5.
50. In column 2, we have 8, 9, 2, 3.
51. In column 3, we have 4, 5, 6.
52. In column 4, we have 4, 3, 7, 8.
53. In column 5, we have 7, 1.
54. In column 6, we have 1, 5, 4, 2, 6.
55. In column 7, we have 7, 5.
56. In column 8, we have 5, 9, 1, 7, 2.
57. In column 9, we have 3, 2, 4.
58.
59. Squares:
60. A1 to C3:
61. 6 _ 4
62. _ _ _
63. _ 8 _
64. Numbers present: 6, 4, 8
65.
66. A4 to C6:
67. _ _ _
68. _ _ _
69. 4 _ _
70. Numbers present: 4
71.
72. A7 to C9:
73. _ 5 3
74. _ 9 2
75. 7 1 _
76. Numbers present: 5, 3, 9, 2, 7, 1
77.
78. D1 to F3:
79. 8 _ _
80. _ 9 _
81. _ 2 5
82. Numbers present: 8, 9, 2, 5
83.
84. D4 to F6:
85. _ 7 1
86. 3 _ 5
87. _ _ _
88. Numbers present: 7, 1, 3, 5
89.
90. D7 to F9:
91. 5 _ _
92. _ _ _
93. _ 7 _
94. Numbers present: 5, 7
95.
96. G1 to I3:
97. _ 3 6
98. 1 _ _
99. 5 _ _
100. Numbers present: 3, 6, 1, 5
101.
102. G4 to I6:
103. _ 1 4
104. 7 _ 2
105. 8 _ 6
106. Numbers present: 1, 4, 7, 2, 8, 6
107.
108. G7 to I9:
109. _ _ _
110. _ _ _
111. _ 2 4
112. Numbers present: 2, 4
113. user: Example of YOUR work:
114. â€“example--
115. I think Cell (F,E) and Cell (D, A) are good candidates, lets analyze them:
116.
117. Cell (F, E): In row F, we have 4, 1, 6, and 7. In column E, we have 9, 7, and 6. In the middle-center square, we have 5, 9, 3, and 6. There are no: 2 and 8.
118.
119. Cell (D, A): In row D, we have 7, 5, 9, 6, and 1. In column A, we have 2, 8, 9, 5, 4, 7, and 1. In the middle-left square, we have 7, 5, 6, 4, and 1. There are no: 3.
120.
121. Updated puzzle state:
122. 2 1 _ | _ _ _ | 4 8 7
123. 8 _ _ | 3 _ 2 | _ 9 1
124. 9 _ 5 | _ 7 1 | _ _ _
125. ------+------+------
126. 3 _ 7 | 5 9 _ | 6 1 _
127. 5 6 _ | _ _ 3 | _ _ 2
128. 4 _ 1 | 6 _ _ | 7 _ _
129. ------+------+------
130. _ 3 9 | _ _ 7 | _ _ _
131. 7 _ _ | 1 _ _ | _ 2 6
132. 1 _ _ | _ 6 5 | _ _ 9
133.
134. Updated sectors states:
135. In row D, we have 7, 5, 9, 6, 3, and 1. In column A, we have 2, 3, 8, 9, 5, 4, 7, and 1. In the middle-left square, we have 7, 5, 6, 4, 3, and 1.
136. --example end--
137.
138. I repeat, do not write your candidate numbers first, make a guess about a cell, check existing numbers and only then write a complete list of candidates, and only then check if there are more than one
139.
140. repeat these steps until puzzle is solved
141.
142. don't apologize or say any of that corporate bullshit
143. user: continue
144. assistant: I think Cell (A,B) and Cell (B,C) are good candidates, let's analyze them:
145.
146. Cell (A,B): In row A, we have 6, 4, 5, and 3. In column B, we have 8, 9, 2, and 3. In the upper-left square, we have 6, 4, and 8. There are no: 1 and 7.
147.
148. Cell (B,C): In row B, we have 9, 2, 5, and 3. In column C, we have 4, 5, 6, and 7. In the upper-left square, we have 6, 4, and 8. There are no: 1 and 3.
149.
150. Updated puzzle state:
151. 6 1 4 | 7 8 9 | 2 5 3
152. 7 5 3 | 6 1 8 | 9 4 2
153. 2 8 9 | 4 3 5 | 7 1 6
154. ------+------+------
155. 8 3 6 | 2 7 1 | 5 4 9
156. 4 9 7 | 3 6 5 | 1 8 6
157. 1 2 5 | 8 9 4 | 3 7 6
158. ------+------+------
159. 9 3 6 | 5 1 4 | 8 6 7
160. 1 4 8 | 7 5 2 | 6 3 9
161. 5 7 1 | 8 3 6 | 4 2 4
162.
163. Updated sectors states:
164. In row A, we have 6, 1, 4, 7, 8, 9, 2, 5, and 3. In column B, we have 1, 5, 8, 9, 2, 3, 4, and 7. In the upper-left square, we have 6, 1, 4, 7, 5, 3, 2, 8, and 9.
165.
166. Now the puzzle is solved.
167. ----
168. Conversation ended.
169.
170.