Thank you to 20,000 readers of my #Database #performance tuning tips. I hope you found it helpful! @Dynatrace #SQL #SQLServer https://t.co/C2zcCkXhGo
— Arno Huetter (@ArnoHu) 12. Dezember 2017
Thursday, December 21, 2017
Database Performance Tuning - 20,000 Readers Reached
Scratch Chess Kochy-Richter Checkmate
Chess enthusiasts on #Scratch found out @CoderDojoLinz Chess (https://t.co/b5p2dMflhr) discovers Kochy-Richter checkmate (Q sacrifice). pic.twitter.com/hkPSQgNe6e
— Arno Huetter (@ArnoHu) 18. September 2017
Thursday, March 09, 2017
Scratch Chess
My personal project "Chess"... no, not the IBM 1980/81 one! :-)
I implemented this ply4 minimax / alpha-beta pruning / move ordering chess game using Scratch, MIT's programming environment for children. Now one could consider Scratch not really a suited platform for such an untertaking, given its built-in performance throttle, and the fact it does not support local variables, return values or changing parameter values (quite a constraint for recursions). But it was exactly that challenge that kept me trying. Also I noticed that while there were some really good chess engines in Scratch, but they missed an easy-to-use UI. And vice versa.
I didn't know too much about chess programming, so the resources at https://chessprogramming.wikispaces.com/ turned out really helpful The outcome was well-received by the chess community on Scratch. And I gained enough experience to work on a .NET port next. I think ply8 should be possible there on commodity hardware.
I also provided a Scratch Chess tutorial (in German) for the CoderDojo Linz programming club.
I implemented this ply4 minimax / alpha-beta pruning / move ordering chess game using Scratch, MIT's programming environment for children. Now one could consider Scratch not really a suited platform for such an untertaking, given its built-in performance throttle, and the fact it does not support local variables, return values or changing parameter values (quite a constraint for recursions). But it was exactly that challenge that kept me trying. Also I noticed that while there were some really good chess engines in Scratch, but they missed an easy-to-use UI. And vice versa.
I didn't know too much about chess programming, so the resources at https://chessprogramming.wikispaces.com/ turned out really helpful The outcome was well-received by the chess community on Scratch. And I gained enough experience to work on a .NET port next. I think ply8 should be possible there on commodity hardware.
I also provided a Scratch Chess tutorial (in German) for the CoderDojo Linz programming club.
Sunday, January 29, 2017
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