The guidelines for the benchmarks game "fasta" programs changed to: -- "match a random number against those cumulative probabilities to select each nucleotide (use linear search or binary search)". I'd appreciate it if someone familiar with Haskell could confirm that the old Haskell programs are not compatible with the changed guidelines. Here are those old programs: http://benchmarksgame.alioth.debian.org/u64q/program.php?test=fasta&lang=ghc&id=2 http://benchmarksgame.alioth.debian.org/u64q/program.php?test=fasta&lang=ghc&id=5 http://benchmarksgame.alioth.debian.org/u64q/program.php?test=fasta&lang=ghc&id=6 http://benchmarksgame.alioth.debian.org/u64q/program.php?test=fasta&lang=ghc&id=7 best wishes, Isaac