The descriptions of the rules for the Cluedo / Clue game are often
incomplete or unclear. Therefore, I tried to analyse and summarize
them. In addition there exist a couple of house rules which I also
included here. Please find my results below and feel free to comment
on it, make additions and/or correct any errors I may have made.
1) Initial position of weapons
a) In arbitrary rooms
b) In arbitrary rooms but at most one weapon per room
c) In specified rooms (Dagger=Lounge, Candlestick=Dining Room,
Revolver=Study, Rope=Ballroom, Lead pipe=Conservatory,
This has no effect on the game play as the weapons are teleported
later during the game anyway.
2) Initial positions of spare pieces
a) All on their START spaces
b) In arbitrary rooms
This has no effect on the game play as the spare pieces are
teleported later during the game anyway.
3) First player to start
a) Miss Scarlett
b) Roll one die, highest number starts first
c) Roll two dice, highest number starts first
Starting first should be an advantage. However, I guess there are
no qualified statements about how large that advantage is.
If there are n players, then playing n games where each player
starts first once, will eliminate this problem.
4) First player to receive cards
a) Miss Scarlett
b) Roll two dice, winner is the dealer, next player to the left
of the dealer gets the first card
This is important only if the game is played with four or five
players as in that case the cards cannot be distributed equally
among the players. A lot of descriptions say that "It doesn't
matter if some players receive more cards than others." which is
IMO completely wrong since if you have more cards than some other
player(s), you should have a slight advantage. Again, I guess
there are no qualified statements about how large that advantage
is. If there are n players, then playing n games where each
player starts first once, will eliminate this problem.
5) Where the extra cards go to: only in case of four players
(2 extra cards) / five players (3 extra cards)
a) Next two / three players during the dealing
b) Roll two dice, highest number gets all the extra cards
c) Put them in the staircase, everyone can look them up there by
"entering" the staircase (my invention to give all players the
Option b) could be some big advantage for the winner as he would
have 6 / 8 cards instead of 4 / 5 cards, respectively.
6) May step on the same space again in the same turn (i.e. dice roll
shows a two, move one space to the left, then one to the right)
Option b) might be used to block other players, since it is
easier to get in front of a door or to a certain space in the
small corridors between the rooms.
7) Must leave a room using the same door through which you entered
Option b) will change the game a little bit as it removes some
freedom in your decisions.
8) Move blocking piece into the room after a false accusation
b) Yes, on the same turn
c) Yes, on the next turn
This shouldn't be much of importance since most rooms have at
least two doors, or one door and a secret passage to leave it.
9) Movement rate
a) Roll two dice (2 to 12)
b) Roll one die (1 to 6)
c) Nine points (one per space, three for suggestion, accusation,
Option a) / b) makes the game to take longer / shorter compared
to each other. Option c) will remove the randomness introduced by
the dice roll. This allows to compare several computer strategies
more easily. Otherwise a lot of games must be played to get the
required statistical significance.
10) Must use full dice roll (i.e. dice roll shows a seven but you can
treat it only as a five)
Option b) could be used to block other players (see also 6)).
11) Pass through other pieces (but still allow only one piece per
If you are located directly next to some other player it takes a
two to pass through him, but it takes a four to walk around him.
12) Use a secret passage twice in a row ?
Option b) would forbid to jump repeatedly between two rooms
connected by a secret passage. This prolongs the game playing
13) Stay in a room as long as you wish (and make a suggestion each
time on your turn)
Option b) would shorten the game playing time as you can collect
information more quickly.
14) Re-enter the same room on a single turn
Explicitly forbidden by some descriptions, even when using
15) Count doorway as a space ?
a) Yes (i.e. it takes a four from the Conservatory into the
b) No (i.e. it takes a three from the Conservatory into the
I am not sure if I understand this rule correctly that is
mentioned in some English game descriptions (I am German) and my
German versions says nothing about it. Could someone please give
some examples to clarify this topic ?
16) Must make a suggestion when possible ?
I guess there is no explicit rule that requires you to make a
suggestion when possible. However, as making a suggestion should
give you some information gain, it is unwise not to do it.
17) Where can an accusation be made ?
a) Only in the room mentioned in the accusation
c) Only after a suggestion
d) Only at the bottom of the staircase (Back to Black)
Yes, my German version of 2006 requires that you make the
accusation in that room. Options a), c) and d) will prolong the
game playing time as you have to reach the specified locations.
However, this creates some strategic opportunities, i.e. you
could call the other player's suspect into a room just to prevent
him from making the accusation.
Option c) means that you have to be in a room and thus avoids the
blocking doors problem.
18) Accusation method
a) Say loud: Room, Suspect, Weapon
b) Write down: Room, Suspect, Weapon
If the accusation is wrong, then option a) will give every player
some extra information, while option b) would give you nothing.
19) Two consecutive suggestions in the same room (even if you left
Option b) requires that you enter some other, different room to
make the next suggestion. This prolongs the game playing time.
20) Trapped piece in a room => you must pass
If all doors are blocked (should occur very seldom), you must
wait until someone unblocks a door. This is mentioned explicitly
by some descriptions and cannot occur if you choose to play
according to rule 17 c).
Summary: a,b,c = options explicitly mentioned, - means not specified/mentioned
Game Rule# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
A a a a - a - - c b - a - a a - a b a - -
B b a b - a - - - a - a - - a a - c a - -
C a a a - a a - - a - a - a a - - a a - -
D b a a - a a - b b - a - a a a - b a - a
E b a a - - a - - a - a - a a a - b a - a
F bc b a b a - - - a - a - b - - - b b - -
G c a b - a a - - a - a - b - a - c b - -
where Game is
A = Cluedo (c) 1951 (German)
B = Cluedo Kompakt (c) 2005 (German)
C = Cluedo (c) 2006 (German)
D = Clue (c) 1986 (US)
E = Clue (c) 2002 (US)
F = Cluedo (c) 1975 (UK)
G = Original Cluedo - Rules (1996 Version) (UK)