LinkedIn 6x6 Sudoku #214 Pro-Tips Speed-Run

LinkedIn 6x6 Sudoku #214: Speed-Run Pro-Tips

Jump into #214 like a pro. This 6x6 beast starts sparse, but the givens in the top-right and bottom-left set up chain reactions. Fill rows, columns, and 2x3 blocks with 1-6, no repeats. Here's your tactical breakdown for a sub-90-second solve.

Start Hot: Fullest Areas First

Eye row 1: positions 5-6 locked with 5 and 4. Block 1 (top-right 2x3) has those plus nothing else. Cross-hatch for 1-6 eliminations. Column 5 blocks 3 from row 2 (already has 3 in pos5), column 6 open but row 2 pos6 empty.

• Scan column 1: bottom has 1 row6. Row6 also packs 2 pos2. Forces upward chain.
• Block 3 (row1-2, col5-6): 5,4 row1; 3 row2 col5. Missing 1,2,6. Row2 col6 only spot for 2? No, hidden pair lurks.

Crucial Square: Row2 Col2 Unlock

The difficult row is row 2: just one 3, wide open. But here's the breaker: row2 col2. Cross-hatch column 2 (only 3 in row5 col2 blocks it). Block 2 (row1-2 col3-4) empty. Row1 needs 1,2,3,6; but column checks pin 4 here. Why? Column2 sees 3 below, no other 4 peers yet, but region scan eliminates 1,5 (top block), 3 (row5).

Place 4 at row2 col2. Boom. Triggers row2: col1 can't be 4, eyes 5 from col5. Hidden single 5 row2 col1. Row2 col3 pins 1 (eliminates via givens). Row cascades to col4 6, col6 2.

Hidden Singles & Cross-Hatching Flow

Post-unlock, row2 full: 5,4,1,6,3,2. Propagate:

• Column1: row1 3 (hidden single, blocks from row3-5 empty but row6=1).
• Block1 complete forces row1 col1-4: 3,6,2,1,5,4.

Chain hits row4 col3 given 4, but row3 col3 3 confirms. Difficult block 4 (row3-4 col1-3) cracks with 6 row3 col1 (only spot post-scan).

Endgame Momentum: Pairs & Propagation

By row4: naked pair in col5-6 (1,6 dance). Place row4 col5 1, col6 6. Row5 col6 2 hidden single (column6: 4r1,2r2,6r4).

Final rows snap: row5 4,3,6,5,2,1 via block/column singles. Row6 col3 5 (row6 peers 1,2; column3 elims), col4-6 4,6,3. Grid locked.

Your Speed-Run Edge

Key: That row2 col2 4 was the fulcrum. Cross-hatch ruthlessly on sparse rows, hunt hidden singles after every placement. Re-scan blocks after rows fill. Practice this flow on #214, shave seconds each run. You've got the grid's pulse now.