Rose: I think it game-in-1 has been posted several months ago. And considering that there are only 32768 different codes, and 41817 games have been played, one would expect 2 - 3 games where the code was solved on the first try.
Serendipity: Indeed, the colours are: white, gray, brown, blue, black, red, yellow and pink. My preference would be to replace gray with green (or perhaps orange), as I sometimes find it hard to distinguish between gray and white. But who knows, perhaps one day we'll see 'Giant Logic' with green, light-blue, orange, purple, beige, maroon and violet as additionally colours.
Having said that, perhaps we could have alternative game pieces for Logic; for instance balls with numbers or letters (in contrasting colours, black letters on white balls for instance). We have game piece options for other games as well.
Gordon Shumway: The ability to leave an empty spot is identical to adding another colour.
The general formula for the number of codes with N spots and C colours is CN for regular logic; for unique logic, the formula is C!/(C-N)!, assuming there are at least as many colours as there are spots (otherwise, you wouldn't have any possible codes).
coan.net: Currently, Logic has 32768 different codes to choose from. Most games seem to finish in 5 or 6 moves. Your "small" logik only has 4096 possibilities (and that's assuming there isn't a reduction in the number of colours). Most games wouldn't go past move 4. "Large" logik would up the number of codes to 262144. Probably requiring 6 to 7 moves.
As for unique logik, with 8 colours and 5 positions, there would be 6720 codes to choose from. Just over 1 in 5 of the possible codes does not duplicate a colour.
The game is finished when one or both codes are solved. Since the results of moves are determined at the same time, it is possible that both players solve the opponent's code at the same turn. In this case, the game is a draw. Otherwise, if one player solves the code, he wins the game.
Since this takes away the advantage of the player going first, I'm glad this rule is there.