Arthur Guo
TitleGrandmasterFederationUnited StatesBorn2006FIDE ID30903114
Classical2525
Rapid—
Blitz2488
Games493
W · D · LWon · Drawn · Lost38 / 29 / 33
Peak2529Sep 2023
Rating history
2460
2500
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Oct 2023Nov 2026
Classical2525Blitz2488no games played
Accuracy by phase
97.0%Opening93.8%Middlegame95.6%Endgame
Clutch factor
Insufficient dataPlay style
Elite accuracy: 93.6% average
Very consistent (91%)
Very precise: only 0.0 blunders/game
Dominates 1.d4 as 
(77% in 15 games)
(77% in 15 games)Vulnerable to 1.Nf3 
(only 33%)
(only 33%)Recent games
Antipov, Mikhail Al.(2577)
2025 Pan-Am Collegiate Champions... · 5 Jan 2025
Li, Yunshan(2249)
2025 Pan-Am Collegiate Champions... · 4 Jan 2025
Zhang,Eric(2261)
Pan-Am Intercollegiate · 4 Jan 2025
Brodsky, David(2519)
2025 Pan-Am Collegiate Champions... · 3 Jan 2025
Ladan, Nicholas(2211)
US Junior Championship 2024 · 25 Jul 2024
Play against Guo's Twin
Their real openings, level & style
Practice against a bot that uses their real openings and playing style
Based on 493 games
Openings
246 games as White · scores 57.5%Weaknesses
where they slip as ♔ WhiteRuy Lopez: Closed1.e4 e5 2.♞f3 ♞c6 3.♝b5 a6 4.♝a4 ♞f6 5.O-O ♝e711 games, last played 3 years ago45.5%losses
Strengths
what holds up for them as ♔ WhiteFrench: Tarrasch1.e4 e6 2.d4 d5 3.♞d219 games, last played 5 years ago63.2%wins
Sicilian: d6 Systems1.e4 c5 2.♞f3 d627 games, last played 3 years ago55.6%wins
By family
open a family to see its linesPROTime controls · Years · Events
493 games in scope
LineECOGamesLast playedWins · draws · lossesScorevs 57.5%
B20–B50862y
42%23%35%
53.5%−4.0 ptsC60–C70432y
40%30%30%
54.7%—B10–B15292y
38%31%31%
53.4%−4.1 ptsC00282y
57%36%7
75.0%+17.5 ptsC50–C55122y
50%42%8
70.8%—B00–B0693y
33%33%34%
50.0%—C41–C4482y
25%50%25%
50.0%—A01–A0486y
25%25%50%
37.5%—Mistakes
Problematic pieces
Insufficient data
Critical moment
Insufficient data
Error heatmap · Critical squaresError heatmap
Insufficient data
Critical blunders
Tactical errors analyzed with StockfishCouldn't load this.
Endgame statistics
130 endgames (58%) · force Queen vs Queen (0%)
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Repertoire
PROTime controls · Years · Events
493 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
Explore the repertoireevery move played, ranked by frequency
246 games43%W28%D29%L
246games in this linewon 43%, drew 28%, lost 29%
Move
1. e4
2232y43%29%28%
57%1. d4
157y67%20%13
77%1. b3
76y29%29%42%
43%1. ♞f3
18y00100%
0%