#4 · Combinatorics · Invariants
The mutilated chessboard
Remove two opposite corner squares from an 8×8 chessboard. Can the remaining 62 squares be tiled by 31 dominoes, each covering two adjacent squares?
Stuck? A gentle nudge
Your working
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.