K.O. Sudoku Pro

K.O. Sudoku Pro version. 1. Permanent ad-free; 2. Unlimited prompts; 3. Open full game store(for unlock types); 4. Cloud backup; 5. Early access to new features; ------------------------------ Various types sudoku puzzles, answers, step-by-step explanations, allow take photo to input. It supports 3/4/5/6/7/8/9/10/12/15/16 grid sudoku, irregular sudoku, killer sudoku, kendoku, skyscrapers sudoku, thermo sudoku, arrow sudoku, clone sudoku, odd/even sudoku, palindrome sudoku, sandwich sudoku, little killer sudoku, inequality sudoku, fortress sudoku, between sudoku, German whispers sudoku, slanted-lines sudoku, odd-even capsules sudoku, kropki sudoku, outside sudoku, battenburg sudoku, consecutive sudoku, quad max sudoku, clock face sudoku, clock sudoku, quadruple sudoku, exclusion sudoku, star product sudoku, next to 9 sudoku, Rossini sudoku, x-sums sudoku, search 6 sudoku, search 9 sudoku, odd-even minesweeper sudoku, wheels sudoku, odd-even lines sudoku, anti-diagonal sudoku, slanted # sudoku, slow thermo sudoku, renban sudoku, parity lines sudoku, point to next sudoku, diagonal consecutive sudoku, OEBS sudoku, next to 6 sudoku, VX sudoku, 56 sudoku, irregular dots sudoku, consecutive pairs sudoku, add/sub sudoku, necklace sudoku, blackout sudoku, one more num sudoku, snow sudoku, hexagonal sudoku, curve sudoku, half sudoku, honeycomb sudoku, 3D sudoku, cube sudoku, pentagram sudoku, penrose triangle sudoku, 3D windmill sudoku, overlapping sudoku, samurai sudoku, twodoku, triple doku, flower sudoku, windmill sudoku, gattai-3 sudoku, butterfly sudoku, cross sudoku, sohei sudoku, W sudoku, gattai-5 sudoku, gattai-13 sudoku, extra regions sudoku, diagonal sudoku, windoku, offset sudoku, percent sudoku, asterisk sudoku, girandola sudoku, center dot sudoku, pyramid sudoku, product sudoku, ratio sudoku, addition sudoku, subtract sudoku, round off sudoku, sum or difference sudoku, zero sudoku, prime sudoku, consec-ineq sudoku, BMS sudoku, sum frame sudoku, big-small sudoku, odd sudoku, even sudoku, balanced sudoku, non-consecutive sudoku, no touch sudoku, anti-knight sudoku, anti-bishop sudoku, no-four sudoku, connected irregular sudoku, letter-map sudoku, etc. There are also technique tutorials and a rich online sudoku store. --------------- K.O. mode: Provide the solution directly. Help mode: Provide step-by-step explanations. --------------- Sudoku Rules: Fill in the 9x9 grid with numbers 1~9 such that each row, column, and 3x3 box contains each number exactly once. Irregular Sudoku: Each row, column, and irregularly shaped box contains no repeating digits. Killer Sudoku: Combines classic Sudoku rules with "killer cages" (dashed-line groups). Each cage shows a sum for its digits, which must also be unique within the cage. Kendoku (Newdoku/Calcudoku/Mathdoku): Fill an n x n grid with digits 1-n (no repeats per row/column). Groups marked by thick lines show a target number and operation (+, -, ×, ÷) that their digits must satisfy. If no operator is given, any operation applies. Skyscraper Sudoku: Perimeter clues showing visible building counts (taller numbers block smaller ones), while unmarked sides remain unrestricted. Snow Sudoku: No digit repeats in any horizontal row, left diagonal, right diagonal direction, or within each hexagon. Thermo Sudoku: Numbers must strictly increase from the round bulb end to the flat end of each thermometer shape. Clone Sudoku: Using colors to mark multiple identically-shaped clone regions, where numbers in corresponding positions across clone regions must match. Odd / Even Sudoku: Cells with circles must contain odd digits, cells with squares must contain even digits. 3D Sudoku: Each 3x3 box, as well as the 9 cells along each colored line, contain unique, non-repeating digits. Samurai Sudoku: Satisfying the classic Sudoku rules in each of the five independent regions. Diagonal Sudoku (X Sudoku): Requiring uniqueness of digits in two major diagonals.