Crack the
code.
Guess your rival's secret 4-digit number before they guess yours. Pico means right spot. Pala means wrong spot. First to 4 Picos wins.
THE RIVALS
Choose your battlefield and test your mental agility.
Versus AI
Challenge our smart bot with custom difficulty heuristics.
Private Room
Host a private battle room or join via 6-digit match key.
Global Arena
Challenge worldwide duelists with real-time ELO rating stakes.
How Pico & Pala Works
Three simple rules. Infinite tactical depth.
Set your secret number
Pick 4 unique numbers from 1 to 9. Zero is prohibited. No duplicate digits allowed.
Trade guesses
Analyze feedback each turn. Compare Picos and Palas to isolate valid positions.
First to 4 Picos wins
Crack the rival's code decisively. Sound deduction rewards quick victories before 12 turns.
Why You'll Love It
Fast 2-5 minute matches
Quick cognitive duels designed for sharp coffee breaks or intense competitive ladder climbing.
3 AI difficulty levels
From casual puzzle warmups to grandmaster bot heuristics that anticipate your next deduction.
Real-time & async online play
Smooth instant deduction turns with seamless reconnection, replay analysis, and match logs.
Full stats & streaks
Analyze your win rates, average turns to solve, and Pico precision over lifetime matches.
Your secret number is waiting.
Play right in your browser or take the battle on mobile decks.