user23699: What's the name of the mating pattern starting with the move 21...Ng4!?
[FEN ""]

1. d4 Nf6 2. Nc3 c5 3. d5 e6 4. e4 exd5 5. exd5 d6 6. Nf3 Be7 7. Bb5+ Nbd7 8. a4 O-O 9. O-O b6 10. Bc6 Rb8 11. Bf4 Bb7 12. Bxb7 Rxb7 13. Qd3 Nh5 14. Be3 Ne5 15. Nxe5 dxe5 16. Qf5 Nf6 17. Qxe5 Bd6 18. Qf5 Re8 19. Rad1 Re5 20. Qd3 Rh5 21. h3 Ng4 22. hxg4 Bh2+ 23. Kh1 Bd6+ 24. gxh5 Qh4+ 25.Kg1 Qh2# 0-1


user19358: Not an exact match by any means, but the idea of using the knight as a "bait" to open the file and expose the h7 square is very similar to the fishing pole trap in the Berlin Defence.

user12220: A matting pattern refers to a specific configuration, not to a sequence of moves, thus the hole maneuver starting with 21...Nh4!? has no name as far as I know.
That being said, when the Queen delivers mate just next to the King, either in front or diagonally, it is known as 'Kiss of death'.

https://www.chess.com/lessons/how-to-checkmate/kiss-of-death-checkmate
If the piece protecting the Queen is a pawn, it might be referred either as a Lolli's mate or Damiano's mate, depending on the configuration.
In Damiano's Mate, usually pawn is not only protecting the Queen, but also preventing the King from escape to other square.

In Lolli's Mate, the position looks like this:


user11144: It's rather rare that a mating pattern has a name. (Note that there is a book "1001 Deadly Checkmates" by GM Nunn, but I bet only a handful are named.) That said, the idea of sacrificing a rook and "replacing" it with the stronger queen was already given by Damiano around 1500 - 2nd diagram here. Specifically, "Damiano's Mate" refers only to the end position (usually with a P, but a B also "counts").
You can compare a few examples here and judge yourself if you find it "close enough".

23699: <p>What's the name of the mating pattern starting with the move 21...Ng4!?</p>
<pre><code>[FEN &quot;&quot;]

1. d4 Nf6 2. Nc3 c5 3. d5 e6 4. e4 exd5 5. exd5 d6 6. Nf3 Be7 7. Bb5+ Nbd7 8. a4 O-O 9. O-O b6 10. Bc6 Rb8 11. Bf4 Bb7 12. Bxb7 Rxb7 13. Qd3 Nh5 14. Be3 Ne5 15. Nxe5 dxe5 16. Qf5 Nf6 17. Qxe5 Bd6 18. Qf5 Re8 19. Rad1 Re5 20. Qd3 Rh5 21. h3 Ng4 22. hxg4 Bh2+ 23. Kh1 Bd6+ 24. gxh5 Qh4+ 25.Kg1 Qh2# 0-1
</code></pre>
 19358: <p>Not an exact match by any means, but the idea of using the knight as a &quot;bait&quot; to open the file and expose the h7 square is very similar to the <a href="https://www.thechesswebsite.com/fishingpoletrap/" rel="nofollow noreferrer">fishing pole</a> trap in the Berlin Defence.</p>
 12220: <p>A matting pattern refers to a specific configuration, not to a sequence of moves, thus the hole maneuver starting with 21...Nh4!? has no name as far as I know.</p>
<p>That being said, when the Queen delivers mate just next to the King, either in front or diagonally, it is known as 'Kiss of death'.</p>
<p><a href="https://i.stack.imgur.com/q0KVd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/q0KVd.png" alt="Kiss of Death" /></a></p>
<p><a href="https://www.chess.com/lessons/how-to-checkmate/kiss-of-death-checkmate" rel="nofollow noreferrer">https://www.chess.com/lessons/how-to-checkmate/kiss-of-death-checkmate</a></p>
<p>If the piece protecting the Queen is a pawn, it might be referred either as a Lolli's mate or Damiano's mate, depending on the configuration.</p>
<p>In Damiano's Mate, usually pawn is not only protecting the Queen, but also preventing the King from escape to other square.</p>
<p><a href="https://i.stack.imgur.com/5seIf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5seIf.png" alt="Damiano's mate" /></a></p>
<p>In Lolli's Mate, the position looks like this:</p>
<p><a href="https://i.stack.imgur.com/nPyxh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nPyxh.png" alt="Lolli's Mate" /></a></p>
 11144: <p>It's rather rare that a mating pattern has a name. (Note that there is a book &quot;1001 Deadly Checkmates&quot; by GM Nunn, but I bet only a handful are named.) That said, the idea of sacrificing a rook and &quot;replacing&quot; it with the stronger queen was already given by Damiano around 1500 - <a href="https://en.wikipedia.org/wiki/Pedro_Damiano" rel="nofollow noreferrer">2nd diagram here</a>. Specifically, &quot;Damiano's Mate&quot; refers only to the end position (usually with a P, but a B also &quot;counts&quot;).
You can compare a few examples <a href="https://chessfox.com/damianos-mate/" rel="nofollow noreferrer">here</a> and judge yourself if you find it &quot;close enough&quot;.</p>
