Ravenslofty

import json
import lzma

l = []

with open("staff.txt", "r") as infile:
    with lzma.open("staff.txt.xz", "w") as outfile:
        l = infile.read().split(",")
        outfile.write(json.dumps(l).encode("utf-8")

Ravenslofty

VERSION = 1.0

CC = gcc
CFLAGS = -std=c11 -O3 -pthread
SRC = src/*.c
OBJ = $(SOURCES:.c=.o)
NAME  = wyldchess

BIN_PATH = binaries/v$(VERSION)
EXEC = $(BIN_PATH)/$(TARGET)/$(EXEC_BASE)$(VERSION)

Ravenslofty

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Dan Ravensloft <dan.ravensloft@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is

Ravenslofty

Rank Name                          Elo     +/-   Games   Score   Draws
   1 dorpsgek                      163      32     400   71.9%   24.8%
   2 faile                         139      33     400   69.0%   17.5%
   3 fmax                           10      31     400   51.5%   17.5%
   4 baislicka                      -8      31     400   48.9%   17.2%
   5 pigeon                       -407      50     400    8.8%   11.0%

Ravenslofty

int * vector = dirs[<piece>];

while (*vector != 0) {
    int nextsq = currsq + *vector;
    
    while (board[nextsq] != OFFBOARD) {
        AddMove(currsq, nextsq, <whatever>);
        
        if (board[nextsq] != EMPTY || !slide[<piece>]) 
            break;

Ravenslofty

Board[dest sq] = Board[from sq]
Board[from sq] = valid empty sq

Ravenslofty

package main

const (
	MoveQuiet byte = iota
)

type Move struct {
	From    byte
	To      byte
	Kind    byte

Ravenslofty

const char Vector[5][8] = {
    { +10, +11,  +1,  -9, -10, -11,  -1,  +9 }, // K
    { +10, +11,  +1,  -9, -10, -11,  -1,  +9 }, // Q
    { +10,  +1, -10,  -1,   0,   0,   0,   0 }, // R
    { +11,  -9, -11,  +9,   0,   0,   0,   0 }, // B
    { +21, +12,  -8, -19, -21, -12,  +8, +19 }  // N
};

const char Slide[5] = {
    0, 1, 1, 1, 0

Ravenslofty

/* This is what I do at the moment for a knight. */

void GenKnightBitlist(struct Board * b, int tmp, int from)
{
    int i, j, col;

    i = from;
    col = FILE (i);
    j = i - 6;
    if (j >= 0 && col < 6) {

Ravenslofty

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total           
 time   seconds   seconds    calls  ms/call  ms/call  name    
 23.62     12.68    12.68 125048905     0.00     0.00  RecalculateAttacks
 15.57     21.04     8.36                             _mcount_private
 14.83     29.00     7.96      400    19.90    99.15  Perft.part.0.constprop.4
 12.85     35.90     6.90 33815901     0.00     0.00  RecalculateAttacksFromScratch
 11.14     41.88     5.98 749625666     0.00     0.00  GenBishopBitlist