Dr. Sudoku vs Learn Baduk

Dr. Sudoku Sudoku originally called Number Place, is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution. Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board. SUD Inc.

A beginner-friendly app for learning the game of Go (baduk). No hard jargon, no crushing AI — just tap the board and learn the rules of Go one move at a time. ■ Interactive rules tutorial Placing stones, liberties, atari, capture, two eyes (life), and counting territory — you learn Go by doing, not by reading. Gentle, step-by-step guidance built for absolute beginners. ■ Step-by-step Go puzzles Start with simple captures and build up. Solve "one move to capture" Go problems to grow your reading. Correct moves get warm praise; mistakes just invite you to try again. ■ Play real Go against the AI Put what you learned into practice. Start with Capture Go (beginner match), then step up to real 9x9 Go with full rules. Play with a handicap (five stones to even) that fits your level, and unlock the next rung when you win. The AI is tuned so beginners can actually win — with an atari coach and undo to keep it stress-free. ■ Warm design made for beginners A warm wooden board and large, clear type instead of a cold, intimidating screen. A learn-to-play-Go experience that says "I can do this too." ■ Great for · Anyone who wants to learn Go but doesn't know where to start · Learners who want to really understand the rules (liberties, atari, capture, territory) · Parents starting Go with their kids · Returning players brushing up the basics Place your first stone with First Go today.