Alterman, Boris

ISR ISR·Born 1970·FIDE #2801906·707 Games

Classical2608698 Games

Rapid26019 Games

Blitz—0 Games

Play against Alterman, Boris's Twin

PRO

Uses their openings, level & style

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

Ready to play

707 games analyzed

Statistics

Total

707

Wins

244

Draws

347

Losses

116

35%49%16%

Play Style

What you need to know before facing them

Elite accuracy: 91.2% average

Plays 3.0% better with black

Very precise: only 0.1 blunders/game

Dominates 1.Nf3 ♔ (70% in 25 games)

Vulnerable to 1.Nf3 ♚ (only 46%)

Deep Analysis

Stockfish 18 · Classical games · 20 analyzed

Accuracy by phase

Opening

96.6%

Middlegame

92.5%

Endgame

94.6%

Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?

-15%

Winning (+2 or more)

76%3g

Equal position

96%10g

Losing (-2 or more)

91%7g

Performance under pressure

Problematic Pieces — Which pieces cause most errors?

34%

11 errors

16%

5 errors

16%

5 errors

16%

5 errors

3 errors

Critical Moment — When does the first serious error occur?

Move 39 average

100%

1-15

16-25

26-35

36-45

46+

100% of blunders occur between move 36-45. Keep tension until that moment.

Error Heatmap — Where do most errors occur?

Few

Many

Errors mapped

Hotspot zone

a3 / b2

Critical squares

2 err

a3/b2 concentrate most errors. Force decisions in those zones.

Openings

Based on player games

Weaknesses

— exploit these lines

No significant weaknesses detected as White

No significant weaknesses detected as Black

Strengths

— avoid these lines

No consistent strengths detected as White

Black46.2%Wins

Grünfeld — 1.d4 Nf6 2.c4 g6 3.Nc3 d526 Games · last played 18 years ago

Critical Blunders

3 errors · Stockfish

#44Qe2??Endgamevs ShirovOTB

#39Qg3??Tacticsvs TopalovOTB

#52Bb2??Endgamevs KorchnoiOTB

Recent Games

707 Games

Roiz, Michael(2598)

TCh-ISR 2020 · 4 Sept 2020

½-½

Gruenfeld, Yehuda(2432)

TCh-ISR 2020 · 15 Feb 2020

1-0

Gorodetzky, David(2486)

TCh-ISR 2020 · 14 Feb 2020

½-½

Emanuel, Yahav(2356)

TCh-ISR 2020 · 8 Feb 2020

0-1

Dvoirys, Semen I.(2466)

TCh-ISR 2020 · 7 Feb 2020

1-0

Erenberg, Ariel(2409)

TCh-ISR 2019 · 5 Apr 2019

0-1

Endgame Statistics

PRO9 endgame categories analyzed

Endgame Statistics

Reveal weaknesses →

9 endgame categories analyzed — discover where they collapse under pressure

Repertoire

Move arrowsmost-played moves

Starting Position

Stockfish

371 Games

41%46%13%

Move	Games	%
1.d4	283	63%
1.c4	57	69%
1.Nf3	25	70%
1.f4	5	40%
1.e4	1	50%

MoveGamesPerformance%

1.d4

283

63%

1.c4

69%

1.Nf3

70%

1.f4

40%

1.e4

50%