THE YEAR PUZZLE (program by Heiner Marxen)
Version: $Revision: 1.18 $ $Date: 2006/02/01 17:22:10 $
Target signature = 2003
Without permutation of signature digits.
Intermediate (de)nominator range = -500000 .. 500000
Result range = 0 .. 200
With standard binary operators: + - * /
With standard  unary operators: - sqrt
With parentheses.
With concatenation.
With exponentiation (^).
With factorial (!).
With even/odd factorial (!!).
With decimal point.
Could not solve 69 of 201 values [34.3%].
     0 = 20*0*3
     1 = -2+0+0+3
     2 = 2+0+0*3
     3 = 20*0+3
     4 = 20^0+3
     5 = 2+0+0+3
     6 = 2*(0+0+3)
     7 = 20^0+3!
     8 = 2^(0+0+3)
     9 = 2+0!+0+3!
    10 = 2+0!+0!+3!
    11 = (2+0!)!-0!+3!
    12 = 2*(0+0+3!)
    13 = 20-0!-3!
    14 = 20+0-3!
    15 = 20+0!-3!
    16 = 20-0!-3
    17 = 20+0-3
    18 = 20+0!-3
    19 = 20-0!^3
    20 = 20+0*3
    21 = 20+0!^3
    22 = 20-0!+3
    23 = 20+0+3
    24 = 20+0!+3
    25 = 20-0!+3!
    26 = 20+0+3!
    27 = 20+0!+3!
    28 = 20+(0!+3)!!
    29 = -20+0!+(3!)!!
    30 = (2+0!+0!)!+3!
    31 = .2^(-0!-0!)+3!
    32 = 2^(0!+0!+3)
    33 = ((2+0!)!)!!-(-0!+3!)!!
    34 = -(.2^(-0!))!!+0!+(3!)!!
    35 = 20+(-0!+3!)!!
    36 = (2+0!+0)!*3!
    37 = -sqrt((.2^(-0!))!+0!)+(3!)!!
    38 = sqrt(2*(0!+0!+(3!)!))
    39 = (.2^(-0!))!!+(0!+3)!
    40 = -20*(0!-3)
    41 = ((2+0!)!)!!-0!-3!
    42 = (2+0!)!*(0!+3!)
    43 = ((2+0!)!)!!+0!-3!
    44 = 20+(0!+3)!
    45 = -2+0-0!+(3!)!!
    46 = -2*(0!-(0!+3)!)
    47 = -20^0+(3!)!!
    48 = 2*(0!+0+3)!
    49 = 20^0+(3!)!!
    50 = 2*(0!+(0!+3)!)
    51 = 2+0!+0+(3!)!!
    52 = 2+0!+0!+(3!)!!
    53 = ((2+0!)!)!!-0!+3!
    54 = ((2+0!)!)!!+0+3!
    55 = ((2+0!)!)!!+0!+3!
    56 = (2+0!+0!)!!+(3!)!!
    57 = (20-0!)*3
    58 = ?
    59 = sqrt((.2^(-0!))!+0!)+(3!)!!
    60 = 20*(0+3)
    61 = ?
    62 = -2+(0!+0!)^3!
    63 = (20+0!)*3
    64 = 2^(0+0+3!)
    65 = ?
    66 = 2+(0!+0!)^3!
    67 = 20-0!+(3!)!!
    68 = 20+0+(3!)!!
    69 = -2+sqrt(0!+(0!+3!)!)
    70 = (20+0!)/.3
    71 = sqrt(2^0+(0!+3!)!)
    72 = (2+0!+0!)!*3
    73 = 2+sqrt(0!+(0!+3!)!)
    74 = ?
    75 = .2^(-0!-0!)*3
    76 = ?
    77 = .2*(0!+((0!+3)!!)!!)
    78 = ?
    79 = ?
    80 = 20*(0!+3)
    81 = (2+0!)^(0!+3)
    82 = ?
    83 = ?
    84 = (.2-0!)*-(0!+3!)!!
    85 = -20+(0!+3!)!!
    86 = ?
    87 = ?
    88 = ?
    89 = ?
    90 = ((2+0!)!-0!)!!*3!
    91 = ?
    92 = -2*(0!+0!-(3!)!!)
    93 = ?
    94 = 2*(0-0!+(3!)!!)
    95 = ((2+0!)!)!!-0!+(3!)!!
    96 = 2*(0+0+3!)!!
    97 = ((2+0!)!)!!+0!+(3!)!!
    98 = 2*(0!+0+(3!)!!)
    99 = ((2+0!)!+0!)!!-3!
   100 = -20*(0!-3!)
   101 = ?
   102 = -2-0!+(0!+3!)!!
   103 = -2+(0!+0+3!)!!
   104 = -2^0+(0!+3!)!!
   105 = (20^0+3!)!!
   106 = 2^0+(0!+3!)!!
   107 = 2+(0!+0+3!)!!
   108 = 2+0!+(0!+3!)!!
   109 = ?
   110 = .2^(-0!)+(0!+3!)!!
   111 = (2+0!)!+(0!+3!)!!
   112 = (.2^(-0!))!-(0!+3)!!
   113 = (.2^(-0!))!-0!-3!
   114 = (20-0!)*3!
   115 = (.2^(-0!))!+0!-3!
   116 = (.2^(-0!))!-0!-3
   117 = -2-0!+(-0!+3!)!
   118 = -2+(0!+0!+3)!
   119 = -2^0+(-0!+3!)!
   120 = 20*(0+3!)
   121 = 2^0+(-0!+3!)!
   122 = 2+(0!+0!+3)!
   123 = 2+0!+(-0!+3!)!
   124 = (.2^(-0!))!+0!+3
   125 = ((2+0!)!-0!)^3
   126 = (20+0!)*3!
   127 = (.2^(-0!))!+0!+3!
   128 = 2^(0!+0+3!)
   129 = ?
   130 = ?
   131 = ?
   132 = ?
   133 = ?
   134 = ?
   135 = (.2^(-0!))!!+(-0!+3!)!
   136 = ?
   137 = ?
   138 = ?
   139 = ?
   140 = 20*(0!+3!)
   141 = (((2+0!)!)!!-0!)*3
   142 = 2*sqrt(0!+(0!+3!)!)
   143 = ?
   144 = (2+0!+0!)!*3!
   145 = ?
   146 = ?
   147 = (2+0!)*(0!+(3!)!!)
   148 = ?
   149 = ?
   150 = .2^(-0!-0!)*3!
   151 = ?
   152 = 200-(3!)!!
   153 = ((2+0!)!)!!+(0!+3!)!!
   154 = ?
   155 = ?
   156 = (.2^(-0!))!*(0!+.3)
   157 = ?
   158 = ?
   159 = ?
   160 = 20*(0!+3)!!
   161 = ?
   162 = ?
   163 = ?
   164 = ?
   165 = ?
   166 = ?
   167 = (.2^(-0!))!-0!+(3!)!!
   168 = ((2+0!)!-0!)!+(3!)!!
   169 = (.2^(-0!))!+0!+(3!)!!
   170 = ?
   171 = ?
   172 = ?
   173 = ?
   174 = ?
   175 = ?
   176 = ?
   177 = ?
   178 = ?
   179 = ?
   180 = 2^(-0!-0!)*(3!)!
   181 = ?
   182 = ?
   183 = ?
   184 = ?
   185 = ?
   186 = ?
   187 = ?
   188 = ?
   189 = .2*(0!+(0!+3)!!)!!
   190 = ?
   191 = ?
   192 = 2*(0!+0!)*(3!)!!
   193 = ?
   194 = 200-3!
   195 = ?
   196 = ?
   197 = 200-3
   198 = ?
   199 = ?
   200 = (2+0!)!/.03