Is it possible to get 100% accuracy in a game?

S Miniature can have 100% Accuracy

https://www.chess.com/analysis/game/live/107935263019?tab=review

Just go on maximum

I used to think there is only one best move. But playing the best move can make it easier for your opponent to find the best move because the game just makes sense. But chess computers have shown me there can be multiple playable moves. And if you want to beat the best you got to play a rarely played playable move at least once in a game.

Achieving 100% accuracy in a game is theoretically possible but extremely challenging. It often requires precise timing, skill mastery, and luck, making it a rare feat.

Who knows

I highly doubt it lol

Here's one.
https://www.chess.com/analysis/game/live/108233415779?tab=review&move=21As is usual with 100% accuracy games, It was almost all book moves until the opponent blundered a mate which I already knew how to execute.

What does your opponent have against the italian besides the fried liver, which can be TRAXXED!!

I've actually started building an opening repertoire based on this exact insight. This has got to be a part of why you can get crazy upsets when the weaker player goes way off book- it may not be "the best" move, and the opponent probably knows that, but it's impossible to prepare for all eventualities deep into a line. The right approach is to make sure you understand the ideas and plans of the opening, then getting the right timing and punishing inaccuracies come with experience.

Yo, it's possible.

[Event "6th Dubai Open"]

[Site "Dubai UAE"]

[Date "2004.04.20"]

[Round "2"]

[White "Magnus Carlsen"]

[Black "Deepan Chakkravarthy J"]

[Result "1-0"]

[ECO "B30"]

[WhiteElo "2552"]

[BlackElo "2331"]

[Annotator "rafael"]

[PlyCount "39"]

[EventDate "2004.04.19"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 {It's impressive that the young Carlsen

was already so knowledgeable in the opening. He could play anything back then

and he is still very flexible today.} 4... e5 $6 {[%c_effect

e5;square;e5;type;Inaccuracy;persistent;true] This is not the most accurate and

the game continuation will show why.} (4... Qc7 {is better.}) 5. Bxc6 dxc6 6.

Nxe5 Nxe4 {This is the point: Black is able to regain the pawn. But he is behind

in development.} 7. Nxe4 Qd4 8. O-O Qxe5 9. d4 $5 {[%c_effect

d4;square;d4;type;Interesting;persistent;true] A dynamic move and probably the

best. The alternative of playing slower, with 9.Re1, is also good.} (9. Re1 Be7

10. Ng3 Qd6 11. b3 {Followed by 12.Bb2, with pressure on the kingside.}) 9...

cxd4 {The alternatives are much worse.} (9... Qxe4 $2 {[%c_effect

e4;square;e4;type;Mistake;persistent;true]} 10. Re1 {loses the queen.}) (9...

Qxd4 10. Qf3 $1 {[%c_effect f3;square;f3;type;GreatFind;persistent;true]} 10...

Be7 11. Bg5 $1 {[%c_effect g5;square;g5;type;GreatFind;persistent;true] With a

dangerous initiative. The point is that the bishop cannot be captured, as White

wins after} 11... Bxg5 12. Rad1 $1 {[%c_effect

d1;square;d1;type;GreatFind;persistent;true][%cal de4d6][%c_arrow

e4d6;keyPressed;none;from;e4;opacity;0.8;to;d6;persistent;false] followed by a

knight check on d6.}) 10. Re1 Be6 $2 {[%c_effect

e6;square;e6;type;Mistake;persistent;true] The losing move. Black had to

sacrifice the queen to have some chances.} (10... Be7 11. Bg5 O-O $1 {[%c_effect

g8;square;g8;type;GreatFind;persistent;true]} 12. Nf6+ Bxf6 13. Rxe5 Bxe5) 11.

Bg5 $1 {[%c_effect g5;square;g5;type;GreatFind;persistent;true] Now we have a

textbook example of exploiting an advantage in development while the opponent's

king is in the center.} 11... Be7 (11... Qd5 12. Qf3 $1 {[%c_effect

f3;square;f3;type;GreatFind;persistent;true] the most accurate.} (12. Bf6 $6

{[%c_effect f6;square;f6;type;Inaccuracy;persistent;true] 1-0 Kurmann,O

(2452)-Markos,J (2566) WUCC op 11th Zuerich 2010 (8) was played in

Kurmann-Markos, Zuerich 2010.}) 12... h6 13. Bf6 {Black is in trouble.}) 12. f4 $1

{[%c_effect f4;square;f4;type;GreatFind;persistent;true]} 12... Qd5 {The only

way to protect the d4-pawn.} 13. Bxe7 Kxe7 14. f5 $1 {[%c_effect

f5;square;f5;type;GreatFind;persistent;true] Distracting the queen.} 14... Qxf5

(14... Bxf5 15. Nc3+ $18) 15. Qxd4 {The queen will go to b4.} 15... Qd5 16. Qb4+

c5 17. Nxc5 a5 18. Qa3 Qd4+ 19. Kh1 Qb4 20. Qe3 {The black king will quickly

succumb to the attack. A beautiful game from a young man who was already

demonstrating his talent.} 1-0

No, not if you actually try to play a game

Yes. It's easy to do so. Some games end up really fast so the faster it ends, the easier it is to have 100%
Some famous gambits and traps can lead to very early checkmates leading to 100% accuracy scores.
My favorites are the fried liver and the traxler.

I think as long as it's book moves you get 100% accuracy. You just described a handful of my games playing the blackmar-diemer, Ryder gambit.