Mono Extended Mastery

Prepare yourself for an ultimate test of logical thinking with Mono Extended
Mastery! Be cautious, for with a mere allowance of two errors per level, the
stakes are high. Experience a delightful blend of challenge and variety as the
levels seamlessly transition in difficulty, guaranteeing an adventure that will
never cease to amaze. Will you rise to the occasion, unravel all the perplexing
puzzles, and earn the prestigious title of Nonogram Master?