Go Lab vs ArithMaze

KataGo in the palm of your hand. A Go app for playing seriously and analyzing seriously. Powered by KataGo (b18c384nbt). HumanSL that recreates human playing styles, blunder analysis reports, AI commentary prompt generation, board photo import, and OGS play. Supports 9×9, 13×13 and 19×19, with every feature and model included at no extra cost. ■ KataGo Models: 3 Included • b18c384nbt: A powerful model that runs on CoreML. It truly shines in 19×19 play and analysis • b6c96: A compact model bundled with the app. Light and fast • HumanSL: A model trained on human game records for a human playing style. Play opponents close to your level, from 20 kyu to 9 dan, and switch between modern and classic (pre-AlphaGo) styles ■ Real-Time Analysis • Candidate moves: Shows KataGo’s top 10 moves with win rate and score estimates • Win rate graph: Updates after every move • Territory estimate: Shows black and white territory on the board (can be toggled on/off) • Thinking time visualization: Highlights long thinks in red and yellow ■ Post-Game Review • Blunder analysis report: Lists the moves that cost you the game. Each position shows the AI’s recommended move, a variation diagram, and the difference in points and win rate. Copy or share it as an image • Review mode: Play out variations from any position to create branches. Add PV (principal variation) lines and compare evaluations in the review tree • AI commentary prompt generation: Ports the concept detection layer of Kifu-Sensei (MIT). Automatically extracts facts such as cuts, ladders, and group stability from your game record and builds a high-quality prompt that lets an AI give accurate commentary. Just paste it into the AI of your choice to get a written explanation of why a move was a mistake, something KataGo’s numbers alone cannot tell you ■ Import Games from Photos • Just take a photo of a Go board, and the board frame and stone positions are recognized automatically • Analyze the imported position with KataGo right away ■ OGS Spectating & Play • Log in with your OGS account to watch games from around the world in real time • Also play against other players and bots ■ Games & Records • Play the computer or a friend on the same device (works offline) • Dead stone review screen: The AI suggests dead stones at the end of a game. Tap the board to correct life and death, and adjust the AI’s sensitivity with a slider • SGF import: Import game records by selecting a file or pasting text • Tsumego mode: 347 problems from the Xuanxuan Qijing ■ Focus Mode • Zen mode: Quietly fades out all UI except the board. Switch it on with the Zen button at the top right of the board • Full-screen support: Play on an edge-to-edge board (ideal for 19×19) ■ Bonus: Beginner Lessons • Added at the request of beginners: introductory and basic lessons with the Live2D character Midori • Practice liberties, atari, capturing stones, territory, ko and more by actually playing on a 9×9 board • Not needed? You can hide it the moment it appears Official website: https://apps.vlabos.com/go/

Think you're good at math? Prove it. ArithMaze is a unique puzzle game that blends maze navigation with mental arithmetic. Start at the top-left corner, move through cells with math operations, and reach the goal — keeping your value alive along the way. Each cell holds an operation: addition, subtraction, multiplication, or division. Every step changes your value. Drop to zero? Game over. Find the right path? Victory. It sounds simple, but the deeper you go, the more you'll need to plan ahead. INFINITE PUZZLES, ZERO INTERNET Every maze is procedurally generated with a guaranteed solution. Play anywhere, anytime — no Wi-Fi needed. You'll never run out of fresh puzzles to solve. 5 DIFFICULTY LEVELS Start with beginner-friendly 4x4 grids using only + and −, then progress through Medium, Hard, Expert, and Master modes — all the way up to demanding 7x7 mazes with all four operations. Unlock each level by proving your skills at the previous one. 8 CHALLENGE MODES Once you've mastered the basics, challenge modes shake up the rules: - Fog of War — see only nearby cells - Encrypted Numbers — numbers replaced with letters - Hidden Value — solve without seeing your score - One Try — no undo, no restart, one chance - Time Limit — beat the clock in 60 seconds - Path of Faith — only visited cells are visible - Fast & Furious — one try AND a timer - Superman — the ultimate test: blind, encrypted, timed Each challenge requires mastery — complete 10 puzzles to conquer it. DAILY WARM-UPS Quick 3x3 puzzles with all operations to sharpen your skills every day. Complete 5 warm-ups to earn bonus hints. A perfect way to start your session. SMART HINT SYSTEM Stuck? Use a hint to reveal part of the solution path. Earn hints daily, through warm-ups, or by watching a short ad. Hints show the first ~40% of the path — enough to get you moving, while the final stretch is up to you. TRAIN YOUR BRAIN ArithMaze isn't just fun — it builds real skills: - Mental arithmetic speed and accuracy - Strategic planning and lookahead thinking - Pattern recognition and logical reasoning - Problem-solving under constraints Perfect for students, puzzle enthusiasts, and anyone who wants to keep their mind sharp. CLEAN, THOUGHTFUL DESIGN - Color-coded operations for instant recognition - Undo moves by swiping back (learn by experimentation) - Visual path tracking so you never lose your place - Multiple themes including a dark AMOLED option - Sound effects and haptic feedback (both optional) PROGRESS THAT MATTERS Earn milestone trophies — Bronze, Silver, Gold, Diamond — as you solve more puzzles at each difficulty. Unlock harder modes progressively. Track your history and watch your skills grow over time. GO PRO Love ArithMaze? A one-time Pro upgrade unlocks: - 10 daily hints (instead of 3) - All visual themes - Exclusive challenge modes - Puzzle history - Skip any maze freely - No forced ads, ever Download ArithMaze and discover how addictive math can be.