Weiqi, Go, is part of the abstract games. But chess in not so abstract, its fun; There’s the horse, towers, is a battle. Go is terribly abstract (for people who don’t know its true essence, almost anyone), you put that pieces of two different colors in the board and wonder what it is about: is about war. There’s other explanations; it’s about yin and yang, balance… but war is about yin yang and equilibrium
The secret to see the difference of chess, Chinese chess, Shogi, etc, and go is the proverb(Chess is a battle, Go is a war(larger scope). In Chess and Chinese Chess each square represent maybe 10 meters, in go each point represent strategic points or cities miles away of distance.
You can see this in the different approaches of Chess and Go in representing a conflict:
Different pieces: Chess and Chinese Chess, in a small scale, you have specialized types (the types of Chinese chess is almost perfect, the general in the rear, protected by its royal guards, the chariots in the flank (you see the use of chariots in the Sun Tzu Art of War 孙子兵法, the use of elephants that started in east, the soldiers in the front, of chess seems more complicated, queen more powerful than the king, bishops and towers fighting, it is probably a mix of the diplomatic power and the battlefield). In large scope war, in go,you simply have forces,(wouldn’t make sense send all archers to a city, all cavalry to another with walls; in second world war send snipers to north of France, mans with granades to another front, all Infantary to another, all anti-tank to Russia).
Block: in Chess and Chinese Chess, a small scale battle, if you need to defend a mount, a bridge, city, etc. you simply put forces in their way , you see that in chess and Chinese chess where pieces blocks the way of others; but in larger scale war and in go how you defend the space of miles between two cities or strategic points and impede of reaching a third? That’s why you can put a stone even in a surrounded area,(in modern motorized I don’t know if there’s too much dependence of roads and probably easier to block, but the routes should be so much… in ancient time was easy to pass trough forest, defiles, etc, read the art of war for more examples).
Capture : Chess and Chinese Chess captures who moves first, probably showing the importance of attack and initiative; in Go you surround completely the enemy, meaning attacking it supply lines and incapacity of reinforcements or a siege.
End of battle: chess and Chinese chess shows a short term goal, surrender the opposite general, generally battles in small scale were fast and ended with an army victorious and another captured or fleeing, in Go represents a more complex war with long term goals, war were longer, you conquered a part of the territory and after that it was reconquered, you gain control of something but loss of another, in rare cases there was a total annihilation of the opposite force, although possible in go and war, you have to calculate the losses and gains and see who were the victorious.