Scouting report: Johann Hjartarson (GM, ISL)

2,710 over-the-board games in the Chess Stalker database (1,883 classical, 126 rapid, 701 blitz): 44% wins, 29% draws, 27% losses. FIDE rating 2459 standard, 2405 rapid, 2424 blitz. 313 games analyzed with Stockfish: 93% accuracy, 0.06 blunders per game.

  • Opening repertoire of Johann Hjartarson as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Johann Hjartarson's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/2300044 — no account needed.

Johann Hjartarson

TitleGrandmasterFederationISLBorn1963FIDE ID2300044

Classical2459▼ 2
Rapid2405
Blitz2424
Games2,710
W · D · L44 / 29 / 27
Peak2640

Rating history

2340
2380
2420
2460
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Oct 2023Nov 2026
Classical2459Rapid2405Blitz2424no games played
Accuracy by phase
96.6%Opening92.9%Middlegame94.6%Endgame
Clutch factor
Insufficient data

Play style

Elite accuracy: 92.8% average
Very consistent (86%)
Very precise: only 0.1 blunders/game
Dominates 1.c4 as ♔ (63% in 265 games)

Recent games

Boci, Mateu(2317)

46th Olympiad 2026 · 27 Sept 2026

1–0
Andersen, Mads(2549)

46th Olympiad 2026 · 26 Sept 2026

½–½
Otsuka, Shou(2314)

46th Olympiad 2026 · 25 Sept 2026

0–1
Kwon, Sehyun(2274)

46th Olympiad 2026 · 23 Sept 2026

½–½
Ribera Veganzones, Serni(2305)

46th Olympiad 2026 · 21 Sept 2026

½–½

Play against Hjartarson's Twin

Their real openings, level & style

Based on 2,710 games

Openings

1,342 games as White · scores 60.8%

Weaknesses

where they slip as ♔ White
Italian: Giuoco Piano1.e4 e5 2.♞f3 ♞c6 3.♝c4 ♝c515 games, last played 8 months ago53.3%losses
French: Advance1.e4 e6 2.d4 d5 3.e518 games, last played 2 years ago50.0%losses

Strengths

what holds up for them as ♔ White
Italian: Two Knights1.e4 e5 2.♞f3 ♞c6 3.♝c4 ♞f611 games, last played 11 months ago81.8%wins
Modern Defense1.e4 g6 2.d4 ♝g710 games, last played last month70.0%wins

By family

open a family to see its lines
PRO
2,710 games in scope
LineGamesScorevs 60.8%
26562.6%—
22660.4%—
13161.5%—
10159.9%—
8055.0%−5.8 pts
7862.2%—
5361.3%—
4655.4%−5.4 pts

Mistakes

Problematic pieces
Insufficient data
Critical moment
Insufficient data
Error heatmap · Critical squares
Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

Couldn't load this.

Endgame statistics

Repertoire

PRO
2,710 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
1,342 games47%W28%D25%L
Move
1. e4
5716w
47%28%25%
61%
1. d4
3755m
42%33%25%
59%
1. c4
2656w
51%2425%
63%
1. ♞f3
1314y
48%27%25%
62%

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