--- id: 5900f4131000cf542c50ff25 challengeType: 5 title: 'Problem 166: Criss Cross' videoUrl: '' localeTitle: '' --- ## Description undefined ## Instructions undefined ## Tests ```yml tests: - text: '' testString: 'assert.strictEqual(euler166(), 7130034, "euler166() should return 7130034.");' ``` ## Challenge Seed ```js function euler166() { // Good luck! return true; } euler166(); ``` ## Solution ```js // solution required ```
euler166()