Daily logic puzzle
Gridlock
Fill a compact grid so every clue holds at the same time. Gridlock rewards careful elimination: the useful move is the one the complete clue set proves, not merely the one that looks plausible in a single row.
A logic grid built from interacting constraints
Each Gridlock board begins with fixed information and a collection of clue chips. A clue may narrow a row, column, count, or relationship, but no clue lives alone: every confirmed cell changes what can still fit elsewhere. The objective is to find the full arrangement that satisfies the entire clue set.
Today’s board is part of Deducery’s shared UTC edition, so everyone receives the same daily puzzle at the same instant. You can also use Practice for generated drills or the Archive for earlier editions.
Play today’s GridlockTurn clues into forced cells
- Scan before marking. Read the complete clue set and find the constraints with the fewest possible arrangements.
- Separate proof from hunch. Mark a cell only when the remaining alternatives would contradict a known clue.
- Propagate every result. Recheck the affected row, column, and nearby constraints after each confirmed cell.
- Validate the whole board. A set of locally plausible rows is not enough; the final grid must satisfy every clue together.
Return to the clue whose possibilities changed most recently. A constraint that looked weak at the start can become decisive after another part of the grid is settled.
Daily, practice, and archive play
The daily puzzle is the shared edition and counts toward Deducery’s three-game trifecta. Practice produces additional Gridlock drills with size and difficulty controls. The Archive lets you return to earlier published boards without changing today’s completion.
For full rules covering all three games, controls, accounts, and spoiler etiquette, use the complete Deducery how-to-play guide.
Try a different kind of reasoning
Switch from constraint deduction to exact association groups in Linksets.