LinkedIn 6x6 Sudoku #237 Pro-Tips Speed-Run

LinkedIn 6x6 Sudoku #237: Speed-Run Pro-Tips

LinkedIn 6x6 Sudoku #237 starts sparse: 2s, 3s, 4s, 6s scattered across a tight grid. Rows 1-6 hold clues at (1,3)=2, (1,5)=6, (2,1)=3, (3,2)=4, (4,5)=2, (5,6)=4, (6,2)=6, (6,4)=1. This 6x6 demands precision; no room for sloppy guesses. Here's your tactical breakdown to sub-2-minute solve.

Launch with Cross-Hatching: Pin the Low-Hangers

Cross-hatching rules 6x6 minis. Pick 3: only at (2,1). Slash row 2 and column 1. In top-left 2x3 box, survivors narrow fast. Box needs 3; cross-hatch eliminates all but one spot. Drop it clean.

Shift to 4: Hits at (3,2) and (5,6). Hatch row 3/column 2, row 5/column 6. Middle-right box lights up; only one cell dodges the lines. Fill. Repeat on 2 (at 1,3 and 4,5): cross-hatch row 1/column 3 against row 4/column 5. Top-right box pins a 2 instantly.

Pro move: Cycle 1-6 in order. 6x6 blocks are 2x3, so hatches hug tighter than 9x9. Mark pencil notes sparse; this grid unlocks early.

Hidden Singles: The Silent Killers

After hatches, scan for hidden singles: a number with one possible home in its row/column/box, buried under other candidates.

Target 1: Post-initial fills, row 6 has 6 at col2, 1-clue at col4. Column 5 empty-ish. Hatch 1's absence; only one row-6 slot fits without block clash. Boom, hidden single drops.

Crucial Square Alert: Row 3, Column 6. This beast cracks #237. Post-3 and 4 hatches, row 3 holds 4 at col2. Cross-hatch 6 (row 6 col2 blocks others). Column 6 sees 4 at row5. Only row3-col6 survives in its box/row. Fill 6 here. Chain reaction: unlocks naked singles in row 3 (5 next door), then column 6 cascades 1s and 3s. Mid-game explosion.

Why Row 3 is the Difficult Row

Row 3 starts with just 4 at col2. Empty stretch col1,3-6 taunts you. Hidden 6 at col6 is masked; other candidates (1,2,3,5) float. Ignore it early, you stall. Nail via cross-hatch on 6 (eliminate row6's 6 and column clashes), and row 3 floods: 2-4-5-3-1-6. From there, boxes pair off.

Endgame Momentum: Full House Chasers

Row 3's break ripples. Column 1: 3 at row2, new row3 fill blocks extras. Hidden single for 2 pins top. Boxes fill to full houses: last cell auto-solves (e.g., bottom-left box begs 5).

Tactical chain: Cross-hatch → Hidden single in row3-col6 → Naked pairs in cols 3/5 → Full rows 1/6. Grid collapses in 10 fills.

Your Speed-Run Edge

Drill row 3 col6 first next time. 6x6 like #237 reward aggressive hatching on doubles (2,4,6 here). Pencil only blockers; trust singles to chain. Sub-minute possible once that crucial square snaps. Hit it.