Example: Cryptarithmetic
n
Variables
:
F T U W
R O X
1
X
2
X
3
n
Domains
: {
0,1,2,3,4,5,6,7,8,9
}
n
Constraints
:
Alldiff (F,T,U,W,R,O)
n
O + O = R + 10
·
X
1
n
X
1
+ W + W = U + 10
·
X
2
n
X
2
+ T + T
=
O + 10
·
X
3
n
X
3
=
F
,
T
≠
0,
F
≠
0