Solve NYT hard Sudoku at one step. With the 5th May 2024 Sudoku, critical breakthrough should be reached fairly early using advanced Sudoku pattern.
NYT Hard Sudoku 5th May 2024: Fairly Early Breakthrough
Stage 1: Critical breakthrough reached fairly early
Hidden single R7C5 8.
Single digit lock on 9 in R7C9, R9C9 in C9 creates a second single digit lock on 9 in C8 Single digit lock on 5 in C9: breakthrough Cycle (5,9) in C7 by double digit scan for [5,9] in C8, C9.
Naked single R5C2 5 by parallel scan for 5 in R5, Naked single R5C5 1.
Naked singles R5C4 1, R5C8 7, R5C9 2. Hidden single R6C8 1. Naked singles R1C7 3, R8C7 1. Hidden single R1C8 8.
Single digit lock on 7 in R9: hidden single R8C9 7.
Single digit lock on 2 in R7C1, R7C3 in left bottom major square: breakthrough R6C2 2 by parallel scan for 2 on C2, hidden single R4C6 2.
Triple digit scan for [4,5,7] in R7 on bottom middle major square creates Cycles (1,6), (2,3,9) in R7 and (4,5,7) in the major square. Breakthrough resource Cycle (3,4,8) formed in R4: naked singles R4C1 6.
Single digit lock on 6 in R1C4, R1C6 pairs up with lock on 6 in R7C4, R7C6 to form X wing on 6: Critical breakthrough R6C5 6.
Rest is routine.
Solution.
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NYT Hard Sudoku 4th May 2024: One Step Solution: Intermediate stage
The intermediate status of the solution for better understanding.
