// all pawns that are blocked by the opponent's pawns
public ulong DownRam(PawnBitBoard opponentPawns)
{
return(BitBoardHelper.ShiftNorthOne(this.board) & opponentPawns.board);
}
// all pawns that are blocked by the opponent's pawns
public ulong DownRam(PawnBitBoard opponentPawns)
{
return BitBoardHelper.ShiftNorthOne(this.board) & opponentPawns.board;
}
// all pawns that are blocked by the opponent's pawns
public ulong UpRam(PawnBitBoard opponentPawns)
{
return(BitBoardHelper.ShiftSouthOne(opponentPawns.board) & this.board);
}
// all pawns that are blocked by the opponent's pawns
public ulong UpRam(PawnBitBoard opponentPawns)
{
return BitBoardHelper.ShiftSouthOne(opponentPawns.board) & this.board;
}
