GM
Alterman, Boris
ISR·Born 1970·FIDE #2801906·707 Games
ISR Classical2608698 Games
Rapid26019 Games
Blitz—0 Games
Statistics
707
Total
244
Wins
347
Draws
116
Losses
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
Opening96.6%
Middlegame92.5%
Endgame94.6%
Clutch Factor
Performance under pressure
Winning (+2 or more)76%
3 Games
Equal position96%
10 Games
Losing (-2 or more)91%
7 Games
Problematic Pieces
Which pieces cause most errors?
♖
34%
11 errors
♗
16%
5 errors
♙
16%
5 errors
♕
16%
5 errors
♔
9%
3 errors
♞
9%
3 errors
Critical Moment
When does the first serious error occur?
Move 39average
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?
2
1
1
2
1
2
1
2
2
1
abcdefgh
Many
Few
Critical squares
a32 err
b22 err
e52 err
f12 err
f72 err
a3/b2 concentrate most errors. Force decisions in those zones.
Recent Games
D
Roiz, Michael2598
TCh-ISR 2020 · 4 Sept 2020
W
Gruenfeld, Yehuda2432
TCh-ISR 2020 · 15 Feb 2020
D
Gorodetzky, David2486
TCh-ISR 2020 · 14 Feb 2020
W
Emanuel, Yahav2356
TCh-ISR 2020 · 8 Feb 2020
W
Dvoirys, Semen I.2466
TCh-ISR 2020 · 7 Feb 2020
W
Erenberg, Ariel2409
TCh-ISR 2019 · 5 Apr 2019
Openings
Based on player games
Weaknesses
EXPLOIT!White
No significant weaknesses detected as White
Black
No significant weaknesses detected as Black
Strengths
AVOIDWhite
No consistent strengths detected as White
Black
Grünfeld
46.2%26 Games·Wins
1.d4 Nf6 2.c4 g6 3.Nc3 d5
Critical Blunders
Tactical errors analyzed with Stockfish
3 errors
▶
#44Qe2??
Endgamevs Shirov
OTB
▶
#39Qg3??
Tacticsvs Topalov
OTB
▶
#52Bb2??
Endgamevs Korchnoi
OTB
Endgame Statistics
9 endgame categories analyzed — discover where they collapse under pressure
Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO2020
2019
2018
2017
2015
2013
PRO
8
76
5
4
3
2
1a
b
c
d
efgh371 Games
41%46%13%
1.d4
63%283
1.c4
69%57
1.Nf3
70%25
1.f4
40%5
1.e4
50%1