Solve NYT very hard Sudoku 3rd May at one step. To reach the critical breakthrough and breaking open the game involved not so easy breakthroughs.
NYT Very Hard Sudoku 3rd May 2024: One Step Solution
Stage 1: All breakthroughs, no challenges left
Hidden R9C6 1, R6C3 1, R3C5 5.
Single digit lock on 1 in R3C8, R3C9: R2C1 1.
Cycle (3,9) in R5 by single digit locks of 3 and 9 coinciding in two cells R5C1, R5C3: naked single R4C1 5, Cycle (4,8) in C2.
Hidden single R8C3 5, R1C2 5, R5C9 5, R6C6 5. Naked single R5C6 2.
Parallel triple digit scan for (3,4,6) in C2, C7 on R2 creates breakthrough resource Cycles (7,9) and (3,4,6) in R2.
Single digit lock on 9 in R1C4, R3C4 creates opportunity to apply double digit scan for (2,9) in C4 and C6 to create Cycles (2,9) in C5 in bottom middle major square, naked singles R8C5 8, Cycles (3,6) in R7, naked single R7C9 2 and Cycle (8,9) in R7.
Cycle (3,6) in C6. Hidden singles R4C8 2, R1C7 2. R8C5 2 by parallel scan for 2 on R9, naked single R9C5 9.
R2C7 9 by parallel scan for 9 on C7, naked single R2C2 7.
Naked singles R9C2 2, R2C2 9, R1C4 9, R3C3 2, Cycles (6,7,8), (3,4) in R9. Cycles (3,4,6), (1,7) in C9.
Cycles (3,6) and (1,7) in R3 and (3,6) in R1: Last breakthrough naked singles R1C3 4, R2C5 4.
Parallel triple digit scan is a new modified technique carrying out parallel digit scan for 3 digits (not one digit) on a row to create a Cycle (and not a naked single). The parallel digit scans were crucial for the major breakthroughs.
Start with R5C5 8 to get all the cells easy.
Solution.
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NYT Hard Sudoku 3rd May 2024: One Step Solution: Intermediate stage
The intermediate status of the solution for better understanding.
