Minor fixups. Require nim 2.0.4 or higher to build

Chess/nimfish.nimble

@@ -12,7 +12,7 @@ bin           = @["nimfish"]
 
 # Dependencies
 
-requires "nim >= 2.0"
+requires "nim >= 2.0.4"
 requires "jsony >= 1.1.5"
 
 

Chess/nimfish/nimfishpkg/magics.nim

@@ -235,10 +235,10 @@ proc attemptMagicTableCreation(kind: PieceKind, square: Square, entry: MagicEntr
     ## at the given square using the provided magic entry. Returns 
     ## (true, table) if successful, (false, empty) otherwise
     
-    # Initialize a new sequence with capacity 2^indexBits
-    result.table = newSeqOfCap[Bitboard](1 shl (64'u8 - entry.shift))
+    # Initialize a new sequence with the right capacity
+    result.table = newSeqOfCap[Bitboard](1 shl (64'u8 - entry.shift))  # Just a fast way of doing 2 ** n
     result.success = true
-    for _ in 0..result.table.capacity:
+    for _ in 0..<result.table.capacity:
         result.table.add(Bitboard(0))
     # Iterate all possible blocker configurations
     for blocker in entry.mask.subsets():