The chex from a-mango

chex's Introduction

CHEX CHESS MANUAL

1       TODO

[ ]     Add command line argument support
[ ]     Add error handling
[ ]     Extend debug logging functionalities
[ ]     Fix board representation
[x]     Add a board printer
[ ]     Fix move parser
[ ]     Add a move generator
[ ]     Add a move validator
[ ]     Add a move maker
[ ]     Implement search
[ ]     Implement eval
[ ]     Add REPL
[ ]     Implement UCI


2       DESIGN CONSIDERATIONS

2.1     BOARD REPRESENTATION

This program uses bitboards to represent the board.  A bitboard is a 64-bit
integer, with each bit representing a square on the board.  The least significant
bit represents a8, the next bit represents b8, and so on.  The most significant
bit represents h1.  The bitboard for a square is TODO.

Diagram :

    8   7   6   5   4   3   2   1
  +---+---+---+---+---+---+---+---+
8 | 56| 57| 58| 59| 60| 61| 62| 63|
  +---+---+---+---+---+---+---+---+
7 | 48| 49| 50| 51| 52| 53| 54| 55|
  +---+---+---+---+---+---+---+---+
6 | 40| 41| 42| 43| 44| 45| 46| 47|
  +---+---+---+---+---+---+---+---+
5 | 32| 33| 34| 35| 36| 37| 38| 39|
  +---+---+---+---+---+---+---+---+
4 | 24| 25| 26| 27| 28| 29| 30| 31|
  +---+---+---+---+---+---+---+---+
3 | 16| 17| 18| 19| 20| 21| 22| 23|
  +---+---+---+---+---+---+---+---+
2 |  8|  9| 10| 11| 12| 13| 14| 15|
  +---+---+---+---+---+---+---+---+
1 |  0|  1|  2|  3|  4|  5|  6|  7|


Compass rose:

noWe        nort        noEa
      +7    +8    +9
          \  |  /
west  -1 <-  0 -> +1    east
          /  |  \
      -9    -8    -7
soWe        sout        soEa

See also:
- https://www.chessprogramming.org/Square_Mapping_Considerations


2.2     BITBOARD OPERATIONS

2.2     MOVE REPRESENTATION

2.3     MOVE GENERATION

3       USAGE

4       TESTING

5       REFERENCES

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