====== Hanoi ======
{{tag>problem_solving}}
===== Description =====
Program solve hanoi towers problem

{{:prolog:pllib:hanoi.png|}}

**Source**:  PrologTutorial	(on-line tutorial



===== Download =====
Program source code: {{hanoi.pl}}
===== Listing =====
<code prolog>
move(1,X,Y,_) :-  

    write('Move top disk from '), 

    write(X), 

    write(' to '), 

    write(Y), 

    nl. 

move(N,X,Y,Z) :- 

    N>1, 

    M is N-1, 

    move(M,X,Z,Y), 

    move(1,X,Y,_), 

    move(M,Z,Y,X).



% ?- move(3,left,right,center).</code>
===== Comments =====