Oisin O`cuilleanain
IRL · FIDE ID 2514249 · 131 tournament games since 2022
Standard
2155
#34 in IRL (active)
Rapid
1995
#62 in IRL (active)
Blitz
2112
#30 in IRL (active)
Score
55%
60 W · 24 D · 47 L
Opp. avg
2135
Last 50 games
Last game
2026-08-09
The 105th Irish Championship 2026 | Championship
Prep summary
- As White: 1.e4 in 62% of games (scores 49%).
- Against 1.e4: 1...c5 in 29 of 35 games (Sicilian Defense), scoring 52%.
- Against 1.d4: 1...Nf6 in 19 of 20 games (Indian Defense), scoring 63%.
- By opponent strength: 31% against higher-rated players, 74% against lower-rated.
Based on 131 over-the-board games (25 classical). 61 with White (55%), 70 with Black (55%).
Openings as White
First move
| 1.e4 | 38 | 49% |
| 1.d4 | 12 | 67% |
| 1.c4 | 9 | 56% |
| 1.Nf3 | 2 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | 4 | 38% |
| Italian Game: Classical Variation, Giuoco Pianissimo | 3 | 50% |
| Catalan Opening: Closed | 2 | 100% |
| Sicilian Defense: Accelerated Dragon, Maróczy Bind | 2 | 75% |
| Sicilian Defense: Najdorf Variation, Lipnitsky Attack | 2 | 50% |
Openings as Black
Against 1.e4 (35 games)
| 1...c5 Sicilian Defense | 29 | 52% |
| 1...e5 King's Pawn Game | 6 | 58% |
Against 1.d4 (20 games)
| 1...Nf6 Indian Defense | 19 | 63% |
| 1...d5 Queen's Pawn Game | 1 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Najdorf Variation, English Attack | 4 | 50% |
| Sicilian Defense: Delayed Alapin Variation, with d6 | 3 | 33% |
| Sicilian Defense: Alapin Variation | 2 | 75% |
| Sicilian Defense: Moscow Variation | 2 | 50% |
| Sicilian Defense: Najdorf Variation | 2 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-09 | Kavin Venkatesan (2297) The 105th Irish Championship 2026 | Championship | ½ |
| 2026-08-08 | Jason Liu (2161) The 105th Irish Championship 2026 | Championship | ½ |
| 2026-08-07 | Gordon Freeman (2068) The 105th Irish Championship 2026 | Championship | W |
| 2026-08-06 | Andrey A. Ivanov (2085) The 105th Irish Championship 2026 | Championship | L |
| 2026-08-05 | Anuar Tureshbayev (2250) The 105th Irish Championship 2026 | Championship | L |
| 2026-08-04 | Yannick Woods (2118) The 105th Irish Championship 2026 | Championship | W |
| 2026-08-03 | Colm Daly (2182) The 105th Irish Championship 2026 | Championship | W |
| 2026-08-02 | Declan Voogt (1849) The 105th Irish Championship 2026 | Championship | W |
| 2026-08-01 | Kevin A. Burke (1896) The 105th Irish Championship 2026 | Championship | ½ |
| 2026-06-01 | Advaith Nichenametla V (1956) 35th Drogheda Chess Congress | Thomson Masters · classical | W |
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.