Probably Sudoku

Probably Sudoku is a roguelike number puzzle built around Sudoku rules, powerful combos and Books with personality.

Choose from 12 Books, each with its own ability and questionable encouragement. Place numbers using Sudoku rules, build scoring combinations, and reach each puzzle's target before your turns run out. You don't have to fill every square to win.

A BOOK WORTH FINISHING
Each run spans nine chapters and 27 puzzles. Plan around clearly announced boss powers, then face one of six challenging finales on the last page. New Books draw from 22 distinct bosses. Finish a Book to earn its achievement and unlock its next Obstacle difficulty.

MAKE THE NUMBERS WORK FOR YOU
Discover 50 Bookmarks, 50 Markers and 40 consumable Buffs. Spend earned coins to strengthen your build, reward chosen squares and create combinations that turn a modest move into a much bigger score. Watch Points and multipliers build live, arrange your hand, and hold marked squares to inspect their effects.

Choose to play an ordinary puzzle or skip it for a Buff shown in advance. Boss puzzles must be played. You start with two Buff slots, so deciding what to keep is part of the strategy.

PAPER, PERSONALITY AND ONE MORE TRY
Browse a rotating book rack, turn flexible paper pages, and enjoy music, sound effects and tactile feedback. Adjust the audio and motion to suit you. Interactive practice teaches placement, multipliers, buying and selling, Markers and Buffs. Replay it from Settings and continue your saved Book from home.

Play without a required login. Optional rewarded videos can grant three extra turns, once per puzzle, when an ad is available and the encounter permits it.

Your next good idea is probably one number away.