Mini Rodent 1.0

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PK
Posts: 893
Joined: Mon Jan 15, 2007 11:23 am
Location: Warsza

Mini Rodent 1.0

Post by PK »

I have just completed my little side quest, also meant as the first stage of rewriting my engine. Here comes Mini Rodent 1.0 - an engine achieving something like 2700-2730 Elo on CCRL scale in 2400 lines of code (excluding comments and empty lines).

https://github.com/nescitus/Rodent_II/b ... %201.0.zip

(click "RAW" button and download will start)

It is still way below Rodent's best release. Hell, it's even slightly weaker than Rodent 1.4, but code is much clearer and many obvious improvements are still missing.

Mini Rodent is intended as a didactic engine / a springboard for lazy developers. It is released under GPL, so feel free to rename it and improve it, just as it improves over Sungorus 1.4
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mvk
Posts: 589
Joined: Tue Jun 04, 2013 10:15 pm

Re: Mini Rodent 1.0

Post by mvk »

Thank you for this little diamond.

I had some trouble to compile it with gcc/g++ on linux, but with clang it works. It is quite strong, no need to be so humble.
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Jamal Bubker
Posts: 326
Joined: Mon May 24, 2010 4:32 pm

Re: Mini Rodent 1.0

Post by Jamal Bubker »

Thank you Pawel for this "mini" - release :lol:
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MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: Mini Rodent 1.0

Post by MikeB »

PK wrote: ...something like 2700-2730 Elo on CCRL scale in 2400 lines of code ...
Pretty impressive!
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User avatar
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: Mini Rodent 1.0

Post by MikeB »

a fair number of complier warnings:

Code: Select all

eval.cpp:26:25: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
char *factor_name[] = { "Pst       ", "Pawns     ", "Passers   ", "Attac...
                        ^
eval.cpp:26:39: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
char *factor_name[] = { "Pst       ", "Pawns     ", "Passers   ", "Attac...
                                      ^
eval.cpp:26:53: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
char *factor_name[] = { "Pst       ", "Pawns     ", "Passers   ", "Attac...
                                                    ^
eval.cpp:26:67: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...= { "Pst       ", "Pawns     ", "Passers   ", "Attack    ", "Mobility  "...
                                                   ^
eval.cpp:26:81: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...= { "Pst       ", "Pawns     ", "Passers   ", "Attack    ", "Mobility  "...
                                                                 ^
eval.cpp:26:95: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...", "Pawns     ", "Passers   ", "Attack    ", "Mobility  ", "Outposts  "...
                                                                ^
eval.cpp:26:109: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ..."Passers   ", "Attack    ", "Mobility  ", "Outposts  ", "Lines     ", "O...
                                                             ^
eval.cpp:26:123: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...", "Attack    ", "Mobility  ", "Outposts  ", "Lines     ", "Others    "};
                                                                ^
eval.cpp:464:12: warning: format string is not a string literal
      (potentially insecure) [-Wformat-security]
    printf(factor_name[fc]);
           ^~~~~~~~~~~~~~~
9 warnings generated.
search.cpp:49:42: warning: length modifier 'I64' results in undefined behavior
      or no effect with 'd' conversion specifier [-Wformat]
    printf("info depth %d time %d nodes %I64d nps %I64d\n", root_depth, ...
                                        ~^~~~
search.cpp:49:52: warning: length modifier 'I64' results in undefined behavior
      or no effect with 'd' conversion specifier [-Wformat]
    printf("info depth %d time %d nodes %I64d nps %I64d\n", root_depth, ...
                                                  ~^~~~
search.cpp:333:10: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  type = "mate";
         ^
search.cpp:339:12: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
    type = "cp";
           ^
search.cpp:342:40: warning: length modifier 'I64' results in undefined behavior
      or no effect with 'd' conversion specifier [-Wformat]
  printf("info depth %d time %d nodes %I64d nps %I64d score %s %d pv %s\n",
                                      ~^~~~
search.cpp:342:50: warning: length modifier 'I64' results in undefined behavior
      or no effect with 'd' conversion specifier [-Wformat]
  printf("info depth %d time %d nodes %I64d nps %I64d score %s %d pv %s\n",
                                                ~^~~~
6 warnings generated.
test.cpp:16:16: warning: using the result of an assignment as a condition
      without parentheses [-Wparentheses]
  while ( move = NextMove(m, &mv_type) ) {
          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
test.cpp:16:16: note: place parentheses around the assignment to silence this
      warning
  while ( move = NextMove(m, &mv_type) ) {
               ^
          (                           )
test.cpp:16:16: note: use '==' to turn this assignment into an equality
      comparison
  while ( move = NextMove(m, &mv_type) ) {
               ^
               ==
test.cpp:32:26: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r "...
                         ^
test.cpp:32:32: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r "...
                               ^
test.cpp:32:38: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r "...
                                     ^
test.cpp:32:44: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r "...
                                           ^
test.cpp:32:50: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r "...
                                                 ^
test.cpp:32:56: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  char *piece_name[] = { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", ...
                                                       ^
test.cpp:32:62: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...= { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "...
                                             ^
test.cpp:32:68: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...= { "P ", "p ", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "...
                                                   ^
test.cpp:32:74: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ..."P ", "p ", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "k ", ...
                                                     ^
test.cpp:32:80: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ..."p ", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "k ", ". " };
                                                     ^
test.cpp:32:86: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "k ", ". " };
                                                        ^
test.cpp:32:92: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "k ", ". " };
                                                              ^
test.cpp:32:98: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
  ...", "N ", "n ", "B ", "b ", "R ", "r ", "Q ", "q ", "K ", "k ", ". " };
                                                                    ^
test.cpp:36:12: warning: format string is not a string literal
      (potentially insecure) [-Wformat-security]
    printf(piece_name[p->pc[sq ^ (BC * 56)]]);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
test.cpp:48:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -",
    ^
test.cpp:49:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r3k2r/p1ppqpb1/bn2pnp1/3PN3/1p2P3/2N2Q1p/PPPBBPPP/R3K2R w KQkq -",
    ^
test.cpp:50:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - -",
    ^
test.cpp:51:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "4rrk1/pp1n3p/3q2pQ/2p1pb2/2PP4/2P3N1/P2B2PP/4RRK1 b - - 7 19",
    ^
test.cpp:52:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "rq3rk1/ppp2ppp/1bnpb3/3N2B1/3NP3/7P/PPPQ1PP1/2KR3R w - - 7 14",
    ^
test.cpp:53:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1bq1r1k/1pp1n1pp/1p1p4/4p2Q/4Pp2/1BNP4/PPP2PPP/3R1RK1 w - - 2 14",
    ^
test.cpp:54:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r3r1k1/2p2ppp/p1p1bn2/8/1q2P3/2NPQN2/PPP3PP/R4RK1 b - - 2 15",
    ^
test.cpp:55:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1bbk1nr/pp3p1p/2n5/1N4p1/2Np1B2/8/PPP2PPP/2KR1B1R w kq - 0 13",
    ^
test.cpp:56:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1bq1rk1/ppp1nppp/4n3/3p3Q/3P4/1BP1B3/PP1N2PP/R4RK1 w - - 1 16",
    ^
test.cpp:57:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "4r1k1/r1q2ppp/ppp2n2/4P3/5Rb1/1N1BQ3/PPP3PP/R5K1 w - - 1 17",
    ^
test.cpp:58:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "2rqkb1r/ppp2p2/2npb1p1/1N1Nn2p/2P1PP2/8/PP2B1PP/R1BQK2R b KQ - 0 11",
    ^
test.cpp:59:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1bq1r1k/b1p1npp1/p2p3p/1p6/3PP3/1B2NN2/PP3PPP/R2Q1RK1 w - - 1 16",
    ^
test.cpp:60:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "3r1rk1/p5pp/bpp1pp2/8/q1PP1P2/b3P3/P2NQRPP/1R2B1K1 b - - 6 22",
    ^
test.cpp:61:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "r1q2rk1/2p1bppp/2Pp4/p6b/Q1PNp3/4B3/PP1R1PPP/2K4R w - - 2 18",
    ^
test.cpp:62:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "4k2r/1pb2ppp/1p2p3/1R1p4/3P4/2r1PN2/P4PPP/1R4K1 b - - 3 22",
    ^
test.cpp:63:5: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
    "3q2k1/pb3p1p/4pbp1/2r5/PpN2N2/1P2P2P/5PP1/Q2R2K1 b - - 4 26",
    ^
test.cpp:78:12: warning: format string is not a string literal
      (potentially insecure) [-Wformat-security]
    printf(test[i]);
           ^~~~~~~
32 warnings generated.
uci.cpp:33:18: warning: conversion from string literal to 'char *' is deprecated
      [-Wc++11-compat-deprecated-writable-strings]
  SetPosition(p, START_POS);
                 ^
./rodent.h:78:25: note: expanded from macro 'START_POS'
#define START_POS       "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
                        ^
uci.cpp:60:63: warning: format specifies type 'int' but the argument has type
      'U64' (aka 'unsigned long long') [-Wformat]
  ...printf (" perft %d : %d nodes in %d miliseconds\n", depth, nodes, Timer....
                          ~~                                    ^~~~~
                          %llu
uci.cpp:166:20: warning: conversion from string literal to 'char *' is
      deprecated [-Wc++11-compat-deprecated-writable-strings]
    SetPosition(p, START_POS);
                   ^
./rodent.h:78:25: note: expanded from macro 'START_POS'
#define START_POS       "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
                        ^
3 warnings generated.
Mac-Pro:src michaelbyrne$
crashes on Mac Pro

Code: Select all

Mac-Pro:~ michaelbyrne$ /Users/michaelbyrne/Downloads/Mini\ Rodent\ 1.0/src/rodent ; exit;
uci
id name Mini Rodent 1.0
id author Pawel Koziol (based on Sungorus 1.4 by Pablo Vazquez)
option name Hash type spin default 16 min 1 max 4096
option name Clear Hash type button
option name Attack type spin default 100 min 0 max 500
option name Mobility type spin default 100 min 0 max 500
option name PassedPawns type spin default 100 min 0 max 500
option name PawnStructure type spin default 100 min 0 max 500
uciok
go depth 15
info depth 1 time 0 nodes I64d nps I64d
Segmentation fault: 11
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.
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PK
Posts: 893
Joined: Mon Jan 15, 2007 11:23 am
Location: Warsza

Re: Mini Rodent 1.0

Post by PK »

Michael, I'll change %d to %luu But what would be correct format of a printable array of strings?
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