New Engine: Blitzkrieg

[MathAddict]

Hi, I have made a new UCI engine Blitzkrieg. Should be around 2000-2200 ELO, but I want to get a more accurate ELO. How do I submit this engine to the CCRL rating lists?

Link: https://github.com/rianneogi/Blitzkrieg ... xe%20files

Blitzkrieg Best.exe is the strongest version so far.

[Graham Banks]

Hi, I have made a new UCI engine Blitzkrieg. Should be around 2000-2200 ELO, but I want to get a more accurate ELO. How do I submit this engine to the CCRL rating lists?

Link: https://github.com/rianneogi/Blitzkrieg ... xe%20files

Blitzkrieg Best.exe is the strongest version so far.

Hi,

we'll test it soon.

Graham.

[Guenther]

Hi, I have made a new UCI engine Blitzkrieg. Should be around 2000-2200 ELO, but I want to get a more accurate ELO. How do I submit this engine to the CCRL rating lists?

Link: https://github.com/rianneogi/Blitzkrieg ... xe%20files

Blitzkrieg Best.exe is the strongest version so far.

What's the difference to version 336? I am asking because I see no
commits after 336 too.

Blitzkrieg is already since the start of the new XB/UCI chronology listed there.
http://rwbc-chess.de/chronology.htm

Normally you don't have to submit your engine to CCRL, if it is already
known. I guess they have not enough testers, but actively asking here
should help somehow. Good luck!

Guenther

[Graham Banks]

...I guess they have not enough testers...Guenther

Always seems to be an issue unfortunately.

[Dann Corbit]

Shifing an int by 48 results in undefined behavior, so:

Code: Select all

Bitset TTRandom()
{
	unsigned long long r0 = rand(), r1 = rand(), r2 = rand(), r3 = rand();
    return &#40;r0| &#40;r1<<16ULL&#41; | &#40;r2<<32ULL&#41; | &#40;r3<<48ULL&#41;);
&#125;

I am quite sure that you meant this also:

Code: Select all

int lastOf(Bitset b)
{
    for&#40;int i = 0; i<64; i++)
    &#123;
        if&#40;&#40;b&0x8000000000000000&#41;==1&#41;
        &#123;
            return 63-i;
        &#125;
        b <<= 1; // Compare this line with your code
    &#125;
    return -1;
&#125;

[Sven]

I am quite sure that you meant this also:

Code: Select all

int lastOf(Bitset b)
{
    for&#40;int i = 0; i<64; i++)
    &#123;
        if&#40;&#40;b&0x8000000000000000&#41;==1&#41;
        &#123;
            return 63-i;
        &#125;
        b <<= 1; // Compare this line with your code
    &#125;
    return -1;
&#125;

... or even like this, more correct version:

Code: Select all

int lastOf(Bitset b)
{
    for&#40;int i = 0; i<64; i++)
    &#123;
        if&#40;&#40;b&0x8000000000000000&#41;!=0&#41; // !!
        &#123;
            return 63-i;
        &#125;
        b <<= 1; // Compare this line with your code
    &#125;
    return -1;
&#125;

[Werner]

Hi, I have made a new UCI engine Blitzkrieg. Should be around 2000-2200 ELO, but I want to get a more accurate ELO. How do I submit this engine to the CCRL rating lists?

Link: https://github.com/rianneogi/Blitzkrieg ... xe%20files

Blitzkrieg Best.exe is the strongest version so far.

Sorry, I do not like this name.

[mar]

Shifing an int by 48 results in undefined behavior, so:

Code: Select all

Bitset TTRandom()
{
	unsigned long long r0 = rand(), r1 = rand(), r2 = rand(), r3 = rand();
    return &#40;r0| &#40;r1<<16ULL&#41; | &#40;r2<<32ULL&#41; | &#40;r3<<48ULL&#41;);
&#125;

Also I don't like the sequence of ors, xor would be better here (or at least masking before ors).
Microsoft rand returns 15 bits only IIRC, so best would be to use 5 rands and shifting by 15, 30 etc.
Even better would be to use some high quality PRNG because microsoft crt uses a stupid LCG that's not much random; but for zobrist keys it'd probably do.

[MathAddict]

Hi, I have made a new UCI engine Blitzkrieg. Should be around 2000-2200 ELO, but I want to get a more accurate ELO. How do I submit this engine to the CCRL rating lists?

Link: https://github.com/rianneogi/Blitzkrieg ... xe%20files

Blitzkrieg Best.exe is the strongest version so far.

What's the difference to version 336? I am asking because I see no
commits after 336 too.

Guenther

Build 336 is "No longer sorts in quiescence"

Shifing an int by 48 results in undefined behavior, so:

Thanks, I fixed that.

I am quite sure that you meant this also

lastOf is not used anywhere in the code so I'm in the clear there.

[Guenther]

Blitzkrieg Best.exe is the strongest version so far.

What's the difference to version 336? I am asking because I see no
commits after 336 too.

Guenther

Build 336 is "No longer sorts in quiescence"

Sorry I don't understand. The lastest source is for build 336.
What version is 'Best'? If people want to test your program normally
they attach a (given) version number for later comparisons.

Edit:
Ok, I see now that the 'best' version internally is build 327,
but only after downloading...

More important though is that it crashes soon after the 'go' command
on my machine => Win7 64 Quadcore from 2009.
Could you create also compiles for older 64 bit machines w/o bmi2 or popcnt instructions?