Scouting report: Konstantin Maslak (GM, RUS)

692 over-the-board games in the Chess Stalker database (550 classical, 34 rapid, 108 blitz): 43% wins, 34% draws, 24% losses. FIDE rating 2555 standard, 2478 rapid, 2520 blitz. 3 games analyzed with Stockfish: 95% accuracy, 0 blunders per game.

Opening repertoire of Konstantin Maslak 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 Konstantin Maslak's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/4130901 — no account needed.

Konstantin Maslak

TitleGrandmasterFederationRussiaBorn1984FIDE ID4130901

Classical2555

Rapid2478

Blitz2520

Games692

W · D · LWon · Drawn · Lost43 / 34 / 24

Peak2571Jan 2010

Rating history

2460

2500

2540

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2555Rapid2478Blitz2520no games played

Accuracy by phase

93.8%Opening94.9%Middlegame100.0%Endgame

Clutch factor

Insufficient data

Play style

Elite accuracy: 95.2% average

Very consistent (90%)

Very precise: only 0.0 blunders/game

Dominates 1.e4 as

(65% in 270 games)

Recent games

Mchedlishvili, Mikheil(2610)

World Blitz 2018 · 30 Dec 2018

1–0

Zvjaginsev, Vadim(2642)

World Blitz 2018 · 30 Dec 2018

1–0

Petrov,N(2593)

World Blitz 2018 · 30 Dec 2018

0–1

Nikolov, Nikolay Petrov(2593)

World Blitz 2018 · 30 Dec 2018

0–1

Savchenko, Boris(2562)

World Blitz 2018 · 30 Dec 2018

0–1

Play against Maslak's Twin

Their real openings, level & style

Practice against a bot that uses their real openings and playing style

Based on

692 games

Based on 692 games

Openings

344 games as White · scores 65.4%

Weaknesses

where they slip as ♔ White

No significant weaknesses detected as white

Strengths

what holds up for them as ♔ White

Scandinavian Defense1.e4 d5 2.exd5 ♛xd510 games, last played 13 years ago80.0%wins

Pirc Defense1.e4 d6 2.d4 ♞f611 games, last played 8 years ago72.7%wins

By family

open a family to see its lines

PROTime controls · Years · Events

692 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 65.4%

B20–B501278y

53%22%25%

63.8%—

C00378y

62%1919

71.6%+6.2 pts

C23–C42238y

48%1735%

56.5%−8.9 pts

B00–B06208y

65%20%15

75.0%+9.6 pts

A10–A30209y

50%40%10

70.0%+4.6 pts

C63–C70199y

37%42%21%

57.9%—

B12–B15178y

29%41%30%

50.0%—

B011413y

71%1415

78.6%—

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

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Repertoire

PROTime controls · Years · Events

692 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

344 games51%W28%D21%L

344games in this linewon 51%, drew 28%, lost 21%

Move

1. e4

2708y

53%23%24%

65%

1. d4

5115y

41%47%12

65%

1. c4

209y

50%40%10

70%

1. ♞f3

317y

67%33%

83%

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