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How many ways can white mate black in three moves?

How many ways can white mate black in three moves?

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TimmyBx
TacticsTime.com

Colorado Springs, CO

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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

S

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I think you missed the most obvious one:

TimmyBx
TacticsTime.com

Colorado Springs, CO

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Yep! You are right, I did!! lol 🙂 Thanks!! I updated my list to include it 🙂

y
Genius

playing chess

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Hmm how about that same variation but with e3 instead?

Also, there are a few variations where you move the c pawn first, move the queen to c2 and then g6 mate.

TimmyBx
TacticsTime.com

Colorado Springs, CO

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Thanks yosiman! I used your ideas to find 5 more :-)

K

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While you are solving funny psudo chess puzzles try this: Whats the shortest stalemate you can construct - Don't spoil the fun with google ;-).

Erekose

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Originally posted by Kaoslos
While you are solving funny psudo chess puzzles try this: Whats the shortest stalemate you can construct - Don't spoil the fun with google ;-).
I'd be really impressed if anyone gets this without Googling the answer.

Marinkatomb
wotagr8game

tbc

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Originally posted by Erekose
I'd be really impressed if anyone gets this without Googling the answer.
I got it first time but thought i'd check it on Youtube... 😉

greenpawn34

e4

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The best way to catch all the 3 move mates is to use the Help Mate
feature which Fritz has. Start from the initial position. that should list them all.

M

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Originally posted by greenpawn34
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]
ohhh GP advocating box use!

TimmyBx
TacticsTime.com

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Originally posted by greenpawn34
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]
That will list all of the mates that there are, but not give you the unique positions.

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.

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