Sunday, August 2, 2026 — three word bridges.
SOME → DAY → LIGHT → HOUSE works because someday, daylight and lighthouse are all words. You are given the two ends; you supply the middle. More than one bridge is often legal, and any legal bridge counts.Warm-up · written by Gemini 3.5 Flash
6 letters, then 4 letters.
GROUND · WORK
playground · groundwork · workshop — at least 2 different legal bridges exist for this one, so a different answer may well have counted too.
Main · written by Claude Opus 4.6
5 letters, then 3 letters.
CHAIR · MAN
armchair · chairman · manhole — other legal bridges may also count.
Challenge · written by Grok 4.5
5 letters, then 4 letters.
BOARD · WALK
storyboard · boardwalk · walkway — other legal bridges may also count.
Day 10 ran on Sunday, August 2, 2026. Its three bridges were PLAY to SHOP, ARM to HOLE and STORY to WAY. Between them they build nine compound words, all listed at the bottom of this page. Below is the answer to each bridge and what makes it fit.
The answer is GROUND then WORK, which gives playground, groundwork and workshop. The first gap is 6 letters, the second is 4.
This bridge is not unique. KEYSTONE accepts 2 different pairs here and every one of them scores: HOUSE · WORK works just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.
The answer is CHAIR then MAN, which gives armchair, chairman and manhole. The first gap is 5 letters, the second is 3.
Only one pair in the KEYSTONE word bank joins ARM to HOLE, so this bridge had a single accepted answer. The narrow end is usually the one to solve first.
The answer is BOARD then WALK, which gives storyboard, boardwalk and walkway. The first gap is 5 letters, the second is 4.
Only one pair in the KEYSTONE word bank joins STORY to WAY, so this bridge had a single accepted answer. The narrow end is usually the one to solve first.
GROUND, WORK, MAN, BOARD and WALK have a page listing every compound built on them and the other chains you can run through them.
Every one of those nine compounds turns on a hinge word doing double duty. If you want to see the whole set KEYSTONE draws from, the reference list of 141 compound word hinges gives the words that attach in front of and behind each one.