Checkmate's You Must Know-Smothered Mate.

The result of successful attacks is often a smothered mate pattern. And while many players can get to this, they often don't know how to finish off the game.

Smothered Mate or Not? - Chess Forums

The Complete Checkmate Patterns List [with examples]

Smothered mate in 7 moves, but the accuracy is really low. Can

ChessBase India - How many checkmate patterns do you know

A Smothered Mate with a Twist In chess composition, to conceive

Master Checkmate and Rookmates in Chess: A Beginner's Guide — Eightify

4-Move Checkmates (Scholar's Mate, 4-Move Smother Mates) - PPQTY

Would you say this counts as a smothered mate? : r/chessbeginners

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The Smothered Mate by Edward Winter

Anastasia's Mate: Diagram Above: 1.Rh3# Checkmates The Black King