South is on lead with hearts trumps and he needs 3 tricks.
South leads a club and west is sunk.
If he ruffs, north over-ruffs and plays a diamond to the queen. West wins and returns a high diamond, ducked (south unblocks the 8), and is endplayed.
If west instead discards a low diamond, north ruffs and plays a low diamond from both hands. West must win and lead away from his KJ after taking his trump.
If the ♦T or J is thrown instead, north plays a low diamond to the queen. West wins and must again lead into the diamond tenace after taking his trump.
Would this be classified as a regular one suited squeeze?

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