It seems like there's a lot of defunct chess improvement blogs out there, especially as it relates to the Knights Errant. I like going through and reading them in one shot to see how their thinking evolved over time. Plus I always feel like I learn something new from at least one post.
I came across the Chess Vision blog by a Dutch expert who was very close to the master title. His last post was 4 years ago, so it's possible he's surpassed that by now. He had a post titled "High Level Scanning" which relates back to pattern recognition that I found interesting.
White to move
He then shows two basic mating patterns that someone would have stored to lead them to the forcing sequence that secures the win for White.
Which brings me back to the title of this post. I need to increase my store of basic mating patterns. Bain has some good mates in it, but I've found that when trying to solve random "mate in X" diagrams on the web, I'm not particularly good at them. Qh5 is certainly a move I would reject initially while trying to force this position into my other patterns."When we start calculating a lot of us will now come up with the following variations:1 Qh5 gxh5 2 Rg3+ Bg7 3 Rxg7+ Kf8 4 Rxh7 (see pattern 1)1 Qh5 gxh5 2 Rg3+ Bg7 3 Rxg7+ Kh8 4 Rg3 (see pattern 2)1 Qh5 h6 2 Qxh6 Bxh6 3 Rxh6 (see pattern 1)Unfortunately however there is that darn Queen on c5 preventing this winning combination (1 Qh5? Qxh5). But a simple deflection does the trick here. After 1 b4! Qxb4 we are back to the variations given above.This is what high level scanning should bring about. Focal gamma bursts that retrieve the right patterns and that make calculating look really easy! But to lift your scanning skills enough to reach this level, they have to be build up step by step."
The Mattson book only has a Kindle version, but it's $2.99. He wrote the book for his son to help him learn mates greater than 1 move. It contains 63 "patterns" which are broken down by attacking piece grouping IE Q+B, Q+N, R+B, etc. Each pattern has 1-6 "mate in X" problems associated with it. The problem comes from a game and the full PGN is listed in the solution. The 1st problem will be a mate in 1, the next problem will be mate in 2 all from the same game. So you learn to reverse engineer the mate. The book usually follows a "show a diagram of the pattern" followed by "show the mating combination from the game starting with mate in 1". Some patterns have more than one diagram associated with it, and will have a game for each diagram. The most amount of problems associated with any one pattern is 6. There are a total of 204 problems.
And now to tie this back to the 1st part of my post, here are two patterns from his book:
Look familiar? :)
And speaking of "reverse engineering" a chess problem, that reminds me of the Ted Talk GM Maurice Ashley gave about retrograde analysis and pattern recognition.