On a 10 × 10 Binairo the rules stop being local. Five 0s and five 1s per line leaves real room to maneuver, so single-cell deductions dry up and you start reasoning about what a whole row could still become. Advanced counting — mentally listing a line's remaining legal completions — becomes the workhorse technique here.
The duplicate-line rule also earns its keep at this size: with ten rows to compare, a nearly-finished row that threatens to copy a completed one hands you a free elimination.
Our weekend daily boards rotate through 10 × 10, and the hard tier at this size is a genuine test. For technique refreshers, the how-to-play guide covers every rule with examples.