Ondrej Boff
CZE · FIDE ID 23733950 · 68 tournament games since 2023
Standard
1955
#1415 in CZE (active)
Rapid
1981
#870 in CZE (active)
Blitz
1826
#1594 in CZE (active)
Score
46%
24 W · 15 D · 29 L
Opp. avg
1961
Last 50 games
Last game
2026-09-13
Czech Rapid Youth Championship 2026 | U20
Prep summary
- As White: 1.e4 in 91% of games (scores 45%).
- Against 1.e4: 1...c5 in 22 of 22 games (Sicilian Defense), scoring 32%.
- Against 1.d4: 1...Nf6 in 9 of 9 games (Indian Defense), scoring 56%.
- Weak spot: Sicilian Defense: Moscow Variation as White, only 0% in 3 games.
- Comfort zone: Sicilian Defense: Kramnik Variation as White, 75% in 8 games.
- By opponent strength: 37% against higher-rated players, 61% against lower-rated.
Based on 68 over-the-board games (25 rapid · 9 classical). 33 with White (48%), 35 with Black (44%).
Openings as White
First move
| 1.e4 | 30 | 45% |
| 1.Nf3 | 2 | 75% |
| 1.c4 | 1 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Kramnik Variation | 8 | 75% |
| Sicilian Defense: Moscow Variation | 3 | 0% |
| Modern Defense: Standard Defense | 2 | 25% |
| Sicilian Defense: Moscow Variation, Sokolsky Variation | 2 | 50% |
| Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | 2 | 100% |
Openings as Black
Against 1.e4 (22 games)
| 1...c5 Sicilian Defense | 22 | 32% |
Against 1.d4 (9 games)
| 1...Nf6 Indian Defense | 9 | 56% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Kalashnikov Variation | 10 | 50% |
| Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | 8 | 13% |
| Indian Defense: Accelerated London System | 3 | 67% |
| Sicilian Defense: Old Sicilian | 2 | 0% |
| Sicilian Defense: Löwenthal Variation | 2 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-09-13 | Marek Fizer (2056) Czech Rapid Youth Championship 2026 | U20 · rapid | L |
| 2026-09-13 | Dominik Novotny (2156) Czech Rapid Youth Championship 2026 | U20 · rapid | W |
| 2026-09-13 | Ondrej Sigut (2121) Czech Rapid Youth Championship 2026 | U20 · rapid | L |
| 2026-09-12 | Antonin Sadil (2045) Czech Rapid Youth Championship 2026 | U20 · rapid | W |
| 2026-08-30 | Sofiia Markina (1929) Chess Slovak Open Skalica 2026 | Open A · rapid | W |
| 2026-08-28 | Gregor Zatko (2093) Chess Slovak Open Skalica 2026 | Open A · rapid | ½ |
| 2026-08-27 | Hriday Garg (1899) Chess Slovak Open Skalica 2026 | Open A · rapid | ½ |
| 2026-08-26 | Vojtech Velim (2102) Chess Slovak Open Skalica 2026 | Open A · rapid | L |
| 2026-08-25 | Jana Sikorova (1940) Chess Slovak Open Skalica 2026 | Open A · rapid | W |
| 2026-08-24 | Marek Durovka (2031) Chess Slovak Open Skalica 2026 | Open A · rapid | L |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.