Fewer than twenty mating patterns recur so often that you must know them. Here’s another.
Artur Yusupov White
Ardash Jayakumar Black
Arlington 2015
Colle Opening D04
1 d4 d5 2 ♘f3 ♘f6 3 e3 c6 4 ♗d3 ♘bd7 5 b3 e6 6 0-0 ♗d6 7 ♗b2 0-0 8 ♘bd2 b6 9 ♘e5! ♗b7 10 f4 c5 11 ♕f3 g6
White was preparing ♕g3 or ♕h3 followed by a strong ♘xd7 and dxc5.
For instance, 11...♖c8 12 ♕g3 threatens 13 ♘xd7 ♘xd7 14 dxc5 (main threat: ♕xg7 mate). Or 13...♕xd7 14 dxc5 and 15 ♗xf6.
12 ♖ad1 ♘e8?
This prepares to trade off the e5-knight. The immediate 12...♘xe5?? 13 fxe5 clearly won’t do. And 12...♗xe5 13 fxe5 ♘e8 seriously weakens the kingside dark squares.
13 ♕h3 cxd4
The d1-rook is revealed to be excellently placed after 13...♘xe5 14 dxe5! ♗e7 15 e4!. White is ready for 16 exd5 ♗xd5 17 c4. Or 16...exd5 17 f5.
And if 15...d4, then 16 c3! dxc3 17 ♗xc3 and 18 f5 or 18 ♘c4.
14 ♗xd4 ♘c5
Black seems pleased with the prospect of 15...♘xd3.
15 ♖f3! ♕e7?
The kingside is endangered by 15...♗xe5 16 fxe5! ♘xd3 17 ♕h6! and ♖h3.
Question 147: Why not 15...♘xd3 ?
16 ♘c6! resigns.
The key elements of the pattern are a bishop and rook controlling h8: 16...♗xc6 17 ♕xh7+! ♔xh7 18 ♖h3+ ♔g8 19 ♖h8 mate.
Ngan Phan Koshnitsky White
Meroua Boudchiche Black
Turin 2006
1 d4 d5 2 ♘f3 ♘f6 3 e3 c6 4 ♗d3 ♘bd7 5 0-0 e6 6 ♘bd2 ♗e7 7 b3 0-0 8 ♗b2 ♖e8 9 ♘e5 ♘f8 10 ♕f3 ♗d6 11 ♕h3 ♗xe5 12 dxe5 ♘6d7 13 f4 ♘c5 14 ♖f3 ♘xd3 15 cxd3 ♘g6 16 g4 c5 17 ♘f1 b6 18 g5 ♘f8? 19 ♘g3 (idea: 20 ♘h5 and 21 ♘f6+!) g6 20 ♘h1! ♗b7 21 ♘f2 ♔g7? 22 ♕h6+ ♔g8 23 ♘g4 f5 23 exf6 resigns.