_raw/costas_array_n5__v3_h.xml

<instance format="XCSP3" type="CSP">
  <variables>
    <array id="x" note="x[c] is the row of the mark in column c (a permutation of 0..n-1)." size="[5]"> 0..4 </array>
  </variables>
  <constraints>
    <allDifferent> x[] </allDifferent>
    <group>
      <allDifferent> %... </allDifferent>
      <args> sub(x[0],x[1]) sub(x[1],x[2]) sub(x[2],x[3]) sub(x[3],x[4]) </args>
      <args> sub(x[0],x[2]) sub(x[1],x[3]) sub(x[2],x[4]) </args>
      <args> sub(x[0],x[3]) sub(x[1],x[4]) </args>
    </group>
  </constraints>
</instance>