Interlock strategies: solving the 8-word crossword

Daily Interlock looks like a small puzzle — eight words, a 12×12 grid, one rule — but the tactics that crack it are still specific. The difference between a one-minute solve and a five-minute slog usually comes down to which word you place first, not how long you stare at the grid. Here are the four habits that make the biggest difference.

1. Read the bank before you touch the grid

Before placing anything, scan the sixteen letter-slots in the two word banks for letters that only appear once or twice. Those are your anchors: if “J” only appears inside one across word and one down word, those two words have to cross on the J. Pin the pair down mentally first — you now know exactly where two of the eight words meet, and everything else builds out from that spot.

If no letter is rare, sort by common pairs instead. “QU”, “CK”, and “TH” are strong anchors even when the individual letters recur.

2. Pick a spine word early

One long word usually dominates the layout. Look for the across word with the most across-word-unique letters — the one whose letters come back in several of the down words. Treat it as your spine: place it roughly in the middle of the grid and hang the down words off it. Once the spine is anchored, three or four of the down words slot into place with no real choice to make.

3. Respect the crossings you've earned

Every time a word drops in clean, it freezes letters at each of its cells. Before dragging the next word, glance at the cells its candidates would have to respect. If a down word needs an “R” in position 2, and the only free column with an R in row 2 is already taken by another vertical placement, then that word has to go somewhere else. A ten-second look is usually cheaper than a reset.

4. Let the red cursor do the work

Interlock validates placements live. When you drag a word onto a cell, the preview lights up green if the drop is legal and red if it would collide — same-axis overlap, mismatched crossing, or off-grid. Don't fight the red. A red cursor means the game has already proven that cell can't work given what's on the board; either you're placing the wrong word at that crossing, or an earlier word is in the wrong spot. Back up one step and try a different anchor before you fill in more.

Bonus: the disconnected-island trap

A common stall: you place four across words and four down words, every cell is clean, but the puzzle doesn't complete. That's almost always two disconnected islands — a pair of crossings off to one side, another pair elsewhere, with no letter linking them. The fix is to move one word of the weaker island so it shares a letter with a word in the stronger one. You rarely have to rebuild more than that.

If you're brand new, start with How to play Daily Interlock for the mechanics. Everything above assumes the mechanics are already automatic.