13 const int SquareNb = 16 * 12;
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15 const int FileA = 0;
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16 const int FileB = 1;
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17 const int FileC = 2;
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18 const int FileD = 3;
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19 const int FileE = 4;
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20 const int FileF = 5;
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21 const int FileG = 6;
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22 const int FileH = 7;
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24 const int Rank1 = 0;
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25 const int Rank2 = 1;
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26 const int Rank3 = 2;
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27 const int Rank4 = 3;
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28 const int Rank5 = 4;
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29 const int Rank6 = 5;
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30 const int Rank7 = 6;
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31 const int Rank8 = 7;
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33 const int SquareNone = 0;
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35 const int A1=0x24, B1=0x25, C1=0x26, D1=0x27, E1=0x28, F1=0x29, G1=0x2A, H1=0x2B;
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36 const int A2=0x34, B2=0x35, C2=0x36, D2=0x37, E2=0x38, F2=0x39, G2=0x3A, H2=0x3B;
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37 const int A3=0x44, B3=0x45, C3=0x46, D3=0x47, E3=0x48, F3=0x49, G3=0x4A, H3=0x4B;
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38 const int A4=0x54, B4=0x55, C4=0x56, D4=0x57, E4=0x58, F4=0x59, G4=0x5A, H4=0x5B;
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39 const int A5=0x64, B5=0x65, C5=0x66, D5=0x67, E5=0x68, F5=0x69, G5=0x6A, H5=0x6B;
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40 const int A6=0x74, B6=0x75, C6=0x76, D6=0x77, E6=0x78, F6=0x79, G6=0x7A, H6=0x7B;
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41 const int A7=0x84, B7=0x85, C7=0x86, D7=0x87, E7=0x88, F7=0x89, G7=0x8A, H7=0x8B;
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42 const int A8=0x94, B8=0x95, C8=0x96, D8=0x97, E8=0x98, F8=0x99, G8=0x9A, H8=0x9B;
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45 const int Light = 1;
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49 extern void square_init ();
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51 extern bool square_is_ok (int square);
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53 extern int square_make (int file, int rank);
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55 extern int square_file (int square);
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56 extern int square_rank (int square);
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57 extern int square_side_rank (int square, int colour);
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59 extern int square_from_64 (int square);
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60 extern int square_to_64 (int square);
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62 extern bool square_is_promote (int square);
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63 extern int square_ep_dual (int square);
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65 extern int square_colour (int square);
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67 extern bool char_is_file (int c);
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68 extern bool char_is_rank (int c);
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70 extern int file_from_char (int c);
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71 extern int rank_from_char (int c);
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73 extern int file_to_char (int file);
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74 extern int rank_to_char (int rank);
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76 extern bool square_to_string (int square, char string[], int size);
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77 extern int square_from_string (const char string[]);
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79 #endif // !defined SQUARE_H
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