Thanks for catching it. Corrected.

I like this chess set but will only consider buying one if the seller agrees to accept bitcoin:
https://twitter.com/ChessBTC/status/657321663692996608
http://www.fastcodesign.com/3052533/wanted/a-3-d-printed-chess-set-based-on-milans-unforgettable-skyline

Your move bitcointalk. You have the white pieces

The current position is updated below:

32.Nb3    Qxb5



No new problems today. I will think about some positions from the European Chess Club Cup and upload some problems after it is over.

Speed will be a big problem here. So long as bitcoin is being used often there will constantly be a problem of the previous block not being able to propagate the network before the next one is found creating all kinds of security and technical problems.

Your move bitcointalk. You have the white pieces

The current position is updated below:

31.Nxa1   Qd3

Probably for similar reasons as the majority of people using bitcointalk. Privacy is important. I have already revealed some clues and will give more in time

Your move bitcointalk. You have the white pieces

The current position is updated below:

30.Nb3    Nxa1



Here is the answer to the Saavedra position I posted:


1.c7       Rd6+
2.Kb5     Rd5+
3.Kb4     Rd4+
4.Kb3     Rd3+
5.Kc2     Rd4
6.c8=R   Ra4
7.Kb3 and white cannot both save the rook and prevent Rc1#

Any other second move for white would allow black to sacrifice his rook for the c pawn with Rd7 (if the king moves to b7 or a7) or play Rd1 followed by Rc1+ (if Kc5).

6.c8=Q   Rc4+
7.Qxc4 is stalemate

Thank you for the link. I will bookmark it to read later. At least this malleability issue is more of a nuisance than a critical threat.

The topic of this thread is very interesting to anyone who cares about cryptography and Zero Knowledge Transactions, but all the personal attacks are not.

OP you seem very knowledgeable as do some others participating or cited in this thread.  If fundraising is your goal then you might want to change your tone. I see condescension from both sides.

The debate in this thread https://bitcointalk.org/index.php?topic=1211093.0 and related subreddit post is quite interesting. I wish it was as civilized as the technical discussions I have seen in this thread.

Maybe my view is simplistic since my current focus is just to learn more about cryptography. I have no economic incentive to favor one coin or developer over another.

Your move bitcointalk. You have the white pieces

The current position is updated below:

29.cxb5   Nc2



Good job solving the first study by Richard Réti.  Several of you seem to have solved the second problem (based on your comments and hints) by Rev. Fernando Saavedra but since I do not see the solution posted yet I will let the rest of you solve it before posting another problem.

Remember the concepts from the first problem. They will save you calculation time in king and pawn endgames.

Here are two famous endgame problems.  The second one is more difficult than the first so choose based on your experience level. If you have seen these before you can confirm when someone answers correctly but please don't reveal the answer.

Easier
White to move and draw:


Harder
White to move and win:

Your move bitcointalk. You have the white pieces

The current position is updated below:

28.Bxe4   Qxe4

Your move bitcointalk. You have the white pieces

The current position is updated below:

27.Bxd2   Bxe4

Here is another problem for those interested in chess history. Credit to Paul Morphy:
https://en.wikipedia.org/wiki/Paul_Morphy

White to move

My focus so far has been on bitcoin but alternatives do interest me. Right now I am spending some of my free time studying cryptography.

"Make the node require the canonical 'low-s' encoding for ECDSA signatures when
relaying or mining.  This removes a nuisance malleability vector."

Are there any negatives to this fix?

This is a good pattern for beginners to learn and memorize. White to move and win:

Your move bitcointalk. You have the white pieces

The current position is updated below:

26.dxc4   Rxd2

No comment. Answering that question combined with some previous clues would narrow down my identity too much right now.