LinkedIn 6x6 Sudoku #233 Pro-Tips Speed-Run

LinkedIn 6x6 Sudoku #233: Speed-Run Pro-Tips

Drop into #233 with eyes on the heavy 67 placements—they dominate rows 1-5 and columns 1-3. This 6x6 mini packs 1-6 logic into tight 2x3 boxes, so every placement ripples fast. Veteran move: scan by digit first, targeting 67 to expose naked singles early.

Start Strong: Cross-Hatching the 67 Fortress

Row 1 has 67 in column 3; row 2 mirrors in column 4. Cross-hatch 67 across columns 1-6. Column 1 screams 67-free in rows 4-6 (hits row 1's 2 and row 3's 67). Row 5 column 1? Only 5 fits—bam, first placement. This chains: row 4 column 1 now 67-blocked, forcing 4 via box scan.

Quick Cross-Hatch Drill:
Row1 Col3: 67 → Slash rows below in Col3.
Col1 Row3: 67 → Block rows above/below.

Hidden Singles in Row 3: The Momentum Builder

Row 3 starts loaded: 67-1-empty-empty-empty-5. After initial fills, hunt 2: column 3 taken, column 6 by 5, boxes limit to column 3 or 4? Nah—hidden single in column 3 (peers block elsewhere). Pencil-mark candidates: row 3 possibles shrink to 2/4/3. Cross-check column 2 (row 1's 2 blocks it)—locks 2 in row 3 column 3.

This unlocks column 3's rest: 4 squeezes into row 3 column 4 via box elimination.

Crucial Square: Row 5 Column 1 – The Crack Point

Here's the aha!: Row 5 column 1. Post-67 cross-hatch and row 3 fills, candidates narrow to one: 4 (1 blocked row 5 column 5, 2/3/5/67 elsewhere). Nail this crucial square, and row 5 cascades—column 2 grabs 67, column 3 4, unveiling 5 in column 4 via hidden pair.

Difficult row? Row 3 mid-game: four givens, but tangled 1/2/3/4/5/67. Hidden singles on 2 and 3 crack it, spilling into blocks 4 and 5.

Advanced Chains: XY-Zing the Endgame

Boxes 5-6 tangle late with 1/2/3/5. Spot XY-Wing on 3: row 4 column 3 holds it, pivots to row 5 column 6. Eliminate triples, force 3 in row 4 column 3. Now scan 8? Wait, 6x6 tops at 6—but same logic scales to leftover 1/2/4.

Final push: two 67 in column 2 force row 6 column 2 to 3, chaining 5/1/4 across row 6. Clean sweep.

Your Speed-Run Toolkit for #233

• Scan by 67: Most frequent, biggest unlocks.
• Cross-Hatch First: 6x6 means fewer lines, faster slashes.
• Hidden Singles Ruthlessly: Row 3 column 3 is your gateway drug.
• Crucial Square Drill: Row 5 col 1—place it, watch the grid melt.
• Retrace if stuck: 36 cells forgive backtracks.

Time it under 90 seconds next run. You've got the grid's pulse now—go dominate #233.