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Questions - bitboard

Fast way of checking for alignment of in a 6x6 bitboard

I am trying to find a quick and fast way to check for alignment of 5 bits in a 6x6 board in all directions (diagonal, horizontal, vertical). The board is represented as a bitboard as they are very fas...
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JackRubiralta

bitmap

bit-manipulation

bit

bit-shift

bitboard

Votes: 0

Answers: 1

Latest Answer

Some tests could be grouped together. For example, let's say the board is called x, then m = x & (x >> 1) & (x >> 2) & (x >> 3) & (x >> 4) computes a mask where...
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harold

Chess Engine Wrong Number of 4 Plie Board States

I'm writing a chess engine, and am trying to make it as fast as possible, so I'm using bitboards to represent each type of piece. I was printing out the number of different board states at each plie (...
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user14872384

python

chess

bitboard

Votes: 0

Answers: 2

Latest Answer

1. e2-e3 2. d7-d6 3. Bf1-b5 + Black's king is now in check, so the number of moves in the 4th ply is more limited. You will need to implement check rules to get the correct number.
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Thomas

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