This was an interesting thread on reddit.com
http://www.reddit.com/r/chess/comments/mijy0/a_counting_exercise/
The poster asked: How many different ending positions exist where white delivers a checkmate on his third move? To get you started: there are 4 different ending positions where black delivers a checkmate on his second move. Can't be too hard, can it?
It took me several tries, and I kept finding new ones.
If you want to see my answer and analysis, I posted it on my chess blog at: http://tacticstime.com/?p=1439
I suggest trying it yourself! It was a lot of fun actually 🙂
Cheers,
Timmy
Originally posted by greenpawn34That will list all of the mates that there are, but not give you the unique positions.
The best way to catch all the 3 move mates is to use the [b]Help Mate
feature which Fritz has. Start from the initial position. that should list them all.[/b]
For example the mates after.
1. e3 f6 2. e4 g5 3. Qh5#
is the same position as after
1. e4 g5 2. Qf3 f6 3. Qh5#
but Fritz would list these as different mates.
But you are right, it is a good way to check an answer, just like putting a tactics puzzle into Fritz is the best way to check the solution to a chess tactics problem 🙂
Or getting in a car, and driving 26.2 miles is the best way to "run" a marathon lol
The fritz "Show all legal moves" can help also. For example the first time I tried this, I missed the tempo killing moves like Ba6 that you would never play in a real game, because they just hang a piece. You have to "think outside the box" to find them all.