The Path
One guided road from your first cell to advanced variants: each stage teaches a skill, then drills it. Lessons are free; drills earn weekly XP — up to 300 a week. Jump anywhere; the path marks where you left off.
Rows, columns, boxes — and how to read a puzzle without fear.
The bread and butter: cells with only one possible digit.
Let two cells do the work of four — eliminations at a distance.
Your first variant: the diagonals join the party.
Rising lines that squeeze digits from both ends.
Little dots, big deductions: consecutive and double digits.
Consecutive runs, scrambled — find the window that fits.
Mirror lines: solve one end, get the other free.
The high-low dance — where 5 fears to tread.
Two circled ends, and everything trapped in the gap between them.
Low, middle, high — a rhythm that repeats every three cells.
The same three-beat rhythm, counted in remainders instead.
Box borders turn a line into a set of matching totals.