Go is the deepest strategy game ever devised — an ancient contest of territory and influence that is still, even in the age of supercomputers, considered the ultimate test of intuition and calculation. This free online Go game runs in your browser against a computer opponent, with no download or sign-up.
The rules are famously simple: place stones, surround space, capture your opponent. From that simplicity emerges a game of staggering richness, played here across difficulty and handicap settings so you can grow from your very first stone to confident play.
Go originated in China more than 2,500 years ago, where it was known as weiqi, 'the surrounding game,' and was counted among the four arts every cultivated scholar was expected to master. It spread to Korea as baduk and to Japan, where from the 17th century onward state-sponsored Go houses raised professional play to an art form and produced much of the game's modern theory.
For decades Go resisted the computers that had long since conquered chess, because its possible positions vastly outnumber the atoms in the universe and cannot be brute-forced. That changed dramatically in 2016, when DeepMind's AlphaGo defeated top professional Lee Sedol — a landmark moment for artificial intelligence, and one that has since inspired human players to explore bold new strategies of their own.
The goal is to control more territory than your opponent. Players take turns placing stones — one plays black, the other white — on the intersections of the grid. Stones do not move once placed, but they can be captured. The empty intersections next to a stone or connected group are its liberties; surround a stone or group so that it has no liberties left and you capture it, removing it from the board.
At the end of the game your score is the territory you have surrounded plus any stones you captured. Because moving first is an advantage, White receives a small points compensation called komi. Two rules to remember: you cannot play a stone that would immediately have no liberties (suicide), and the ko rule prevents endlessly recapturing in the same spot.
Click any empty intersection to place a stone. Legal points respond to your click; illegal moves such as suicide or ko are blocked. Use the pass control when you have no useful move — the game ends when both players pass in a row, and territory is then counted.
Go strategy is about balancing territory you can count now against influence that pays off later. Beginners who internalise these ideas improve very fast.
Corners first, then sides, then centre. It takes far fewer stones to enclose territory in a corner than on the side, and fewer on the side than in the open centre. Strong players open in the corners, extend along the sides, and only fight for the centre once the edges are settled.
Stay connected and make two eyes. Connected stones share liberties and are hard to capture; scattered stones are picked off one by one. A group is unconditionally alive when it surrounds two separate empty spaces called eyes, because your opponent cannot fill both at once. Making two eyes — and denying them to enemy groups — is the single most important survival skill.
Value influence, not just territory. A wall of stones facing the open board may not enclose points yet, but its influence lets you dominate later fighting and build large frameworks. Do not grab every small point at the cost of letting your opponent build a commanding wall.
Play urgent moves before big moves. Before taking the largest open area, ask whether a group is in danger. A move that saves your weak group or attacks the opponent's is urgent and comes first — territory is worthless if the stones around it die.
Attack to profit, not to kill. Chasing an enemy group rarely kills it outright, but every move you use to harass it can build your own territory or thickness on the other side. Herd weak groups toward your strength and take profit as you go.
Know when to sacrifice. A few stones are not worth saving if rescuing them costs you a whole corner. Reading when to let stones go and take compensation elsewhere is a hallmark of strong play.
If you are new, use a handicap or the easier levels and simply try to keep your groups connected and alive; as you improve, lower the handicap and start contesting the whole board. Playing on a smaller board is also a great way to sharpen your fighting before you move up.
How do you win at Go?
You win by controlling more territory than your opponent when the game ends. Your final score is the empty points your stones surround plus the stones you have captured, with White adding komi. Whoever has the higher total wins.
What are liberties and eyes?
Liberties are the empty points directly next to a stone or group; remove them all and the group is captured. An eye is an enclosed empty point inside a group — a group with two separate eyes can never be captured, which is how groups live.
Is Go harder than chess?
In raw complexity, yes: Go has vastly more possible positions than chess, and computers only reached top-human level in 2016, nearly two decades after mastering chess. But the rules are simpler, so it is easy to start.
Is this Go game free?
Yes — play free in your browser against the computer, with no download and no sign-up.
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