Lab sample LinkedIn Mini Sudoku #334. Dimensions 6×6. Givens: 12. Pattern tag: row-scan heavy. Technique histogram: 24× Naked single.
Board spotlight: Most fills come from scanning rows and columns for cells where only one digit fits — classic naked-single territory. Region geometry (6 regions, 6 cells each) shapes which unit yields the next hidden single.
Observation set 1: coordinates R5C2=6, R2C2=5, R1C1=6, R1C6=5; technique classes Naked single, Naked single, Naked single, Naked single.
Observation set 2: coordinates R2C5=6, R2C4=1, R2C6=2, R5C5=5; technique classes Naked single, Naked single, Naked single, Naked single.
Observation set 3: coordinates R5C4=4, R5C6=1, R5C3=3, R2C3=4; technique classes Naked single, Naked single, Naked single, Naked single.
Observation set 4: coordinates R2C1=3, R3C3=6, R3C4=5, R3C1=4; technique classes Naked single, Naked single, Naked single, Naked single.
Observation set 5: coordinates R3C6=3, R4C3=1, R4C1=5, R4C4=6; technique classes Naked single, Naked single, Naked single, Naked single.
Observation set 6: coordinates R4C6=4, R5C1=2, R6C1=1, R6C6=6; technique classes Naked single, Naked single, Naked single, Naked single.
Mid-solve checkpoint: 12 cells remain after the first half of the chain. Row-scan heavy boards often accelerate once two or three regions close — watch for hidden singles in tight blocks.
Late game: final batches collapse quickly when rows and columns near completion. Every row, column, and region contains digits 1–6 with no repeats. Completed path: R5C2=6, R2C2=5, R1C1=6, R1C6=5, R2C5=6, R2C4=1, R2C6=2, R5C5=5, R5C4=4, R5C6=1, R5C3=3, R2C3=4, R2C1=3, R3C3=6, R3C4=5, R3C1=4, R3C6=3, R4C3=1, R4C1=5, R4C4=6, R4C6=4, R5C1=2, R6C1=1, R6C6=6.
Lab result: Row-scan heavy. Technique summary 24× Naked single. Coordinates R5C2=6, R2C2=5, R1C1=6, R1C6=5, R2C5=6, R2C4=1, R2C6=2, R5C5=5, R5C4=4, R5C6=1, R5C3=3, R2C3=4, R2C1=3, R3C3=6, R3C4=5, R3C1=4, R3C6=3, R4C3=1, R4C1=5, R4C4=6, R4C6=4, R5C1=2, R6C1=1, R6C6=6.