--- id: 5900f4131000cf542c50ff25 title: 'Problem 166: Criss Cross' challengeType: 5 forumTopicId: 301800 dashedName: problem-166-criss-cross --- # --description-- A 4x4 grid is filled with digits $d$, $0 ≤ d ≤ 9$. It can be seen that in the grid $$\begin{array}{} 6 & 3 & 3 & 0 \\\\ 5 & 0 & 4 & 3 \\\\ 0 & 7 & 1 & 4 \\\\ 1 & 2 & 4 & 5 \end{array}$$ the sum of each row and each column has the value 12. Moreover the sum of each diagonal is also 12. In how many ways can you fill a 4x4 grid with the digits $d$, $0 ≤ d ≤ 9$ so that each row, each column, and both diagonals have the same sum? # --hints-- `crissCross()` should return `7130034`. ```js assert.strictEqual(crissCross(), 7130034); ``` # --seed-- ## --seed-contents-- ```js function crissCross() { return true; } crissCross(); ``` # --solutions-- ```js // solution required ```