Yona Kosashvili
TitleGrandmasterFederationIsraelBorn1970FIDE ID2800080
Classical2531
Rapid—
Blitz—
Games324
W · D · LWon · Drawn · Lost46 / 32 / 22
Peak2549Apr 2003
Rating history
2500
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Oct 2023Nov 2026
Classical2531no games played
Accuracy by phase
96.6%Opening92.9%Middlegame93.1%Endgame
Clutch factor
Insufficient dataPlay style
Elite accuracy: 92.3% average
Very consistent (94%)
Very precise: only 0.0 blunders/game
Dominates 1.e4 as 
(67% in 146 games)
(67% in 146 games)Recent games
Georgiev, Kiril(2668)
28th European Club Cup · 13 Oct 2012
Bologan, Victor(2695)
28th European Club Cup · 12 Oct 2012
Shirov, Alexei(2718)
28th European Club Cup · 11 Oct 2012
Nabaty, Tamir(2563)
Championship Israel (team) 2011/... · 6 Jan 2012
Gruenfeld, Yehuda(2480)
Israeli Team Championship 2011-1... · 30 Dec 2011
Play against Kosashvili's Twin
Their real openings, level & style
Practice against a bot that uses their real openings and playing style
Based on 324 games
Openings
163 games as White · scores 68.4%Weaknesses
where they slip as ♔ WhiteSicilian: Open1.e4 c5 2.♞f3 d6 3.d4only 9 games, last played 41 years ago44.4%losses
Strengths
what holds up for them as ♔ WhiteSicilian: 2...♞c61.e4 c5 2.♞f3 ♞c618 games, last played 25 years ago66.7%wins
Ruy Lopez: Morphy1.e4 e5 2.♞f3 ♞c6 3.♝b5 a622 games, last played 14 years ago59.1%wins
By family
open a family to see its linesPROTime controls · Years · Events
324 games in scope
LineECOGamesLast playedWins · draws · lossesScorevs 68.4%
B20–B506814y
47%28%25%
61.0%−7.4 ptsC60–C702414y
63%1324%
68.8%—C002324y
57%39%4
76.1%+7.7 ptsB00–B0610—
70%20%10
80.0%—B10–B13725y
57%43%0
78.6%—A00–A047—
57%29%14
71.4%—C41–C44524y
60%40%0
80.0%—A465—
60%40%0
80.0%—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.
Repertoire
PROTime controls · Years · Events
324 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
163 games54%W29%D17%L
163games in this linewon 54%, drew 29%, lost 17%
Move
1. e4
14614y53%29%18%
68%1. d4
6Apr 200050%33%17
67%1. ♞f3
6Apr 199967%1716
75%1. c4
424y100%00
100%1. e3
1Jan 19930100%0
50%