clozza.js is a simplified version of my Javascript chess engine Lozza.
clozza.c is a line-for-line hand-crafted translation of clozza.js into C, including a 2 x 32 bit hash.
Both sources are folded with "/*{{{" and "/*}}}"
clozza.js was run with node v18.12, clozza.c was compiled with:-
clang -O3 -flto -funroll-loops -ffast-math -fno-sanitize=bounds -g0 -o clozza clozza.c
Speed test results:-
search tests perft tests
nodes sec moves sec
clozza.js 51786380 29 4585664012 760
clozza.c 51786380 8 4585664012 234
Result of a match at 60+2:-
Score of c vs js: 73 - 23 - 269 [0.568] 365 ... c playing White: 41 - 11 - 131 [0.582] 183 ... c playing Black: 32 - 12 - 138 [0.555] 182 ... White vs Black: 53 - 43 - 269 [0.514] 365 Elo difference: 47.9 +/- 17.9, LOS: 100.0 %, DrawRatio: 73.7 % SPRT: llr 2.97 (101.0%), lbound -2.94, ubound 2.94 - H1 was accepted