Prepare against Peter Mafnas
CM · Guam · World #67,546 classical · FIDE ID 31000509
When preparing against Peter Mafnas, expect 1.d4 in 75% of White games. Against 1.e4 the reply is 1...c6 (82% of games); against 1.d4, 1...d5 (100%).
Our database contains 38 games by Peter Mafnas, covering Aug 2015 to Jul 2026. Below you'll find Peter Mafnas's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Peter Mafnas before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,830 | 2,095 | Sep 2016 |
| Rapid | 1,905 | 2,019 | Nov 2021 |
| Blitz | 1,998 | 2,044 | Feb 2023 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 38 | 14 | 3 | 21 | 36.8% |
| As White | 20 | 5 | 1 | 14 | 25.0% |
| As Black | 18 | 9 | 2 | 7 | 50.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Peter Mafnas's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Peter Mafnas's side.
First moves as White (20 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 15 | 75.0% | 36.7% |
| c4 | 4 | 20.0% | 0.0% |
| Nf3 | 1 | 5.0% | 0.0% |
Main lines as White
- 1.d4 — 75% of White games, 36.7% score
- …Nf6 (67% of these games) — Mafnas usually continues c4 (22.2% score)
- …d5 (27% of these games) — Mafnas usually continues c4 (87.5% score)
- …f5 (7% of these games) — Mafnas usually continues c4 (0.0% score)
- 1.c4 — 20% of White games, 0.0% score
- …c5 (25% of these games) — Mafnas usually continues Nc3 (0.0% score)
- …e5 (25% of these games) — Mafnas usually continues Nc3 (0.0% score)
- …e6 (25% of these games) — Mafnas usually continues Nc3 (0.0% score)
As Black against 1.e4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 9 | 81.8% | 50.0% |
| c5 | 2 | 18.2% | 100.0% |
As Black against 1.d4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 6 | 100.0% | 58.3% |
Peter Mafnas's chess games
All 38 games by Peter Mafnas in the Chess.ceo database (Aug 2015 - Jul 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 14 wins, 3 draws, 21 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E32 | Nimzo-Indian: Classical Variation | 3 | 1/0/2 | 33.3% |
| A01 | English Opening | 2 | 0/0/2 | 0.0% |
| D06 | Queen's Gambit | 2 | 2/0/0 | 100.0% |
| D94 | Grünfeld Defense | 2 | 1/0/1 | 50.0% |
| E61 | Indian Defense | 2 | 0/0/2 | 0.0% |
| A48 | King's Indian Defense | 2 | 0/0/2 | 0.0% |
| A91 | Dutch Defense | 1 | 0/0/1 | 0.0% |
| D48 | Slav Defense | 1 | 0/1/0 | 0.0% |
| A21 | English Opening: Reverse Sicilian | 1 | 0/0/1 | 0.0% |
| E13 | Nimzo-Indian: Leningrad Variation | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B12 | Caro-Kann: Advance Variation | 6 | 3/1/2 | 50.0% |
| D11 | Slav Defense | 2 | 0/0/2 | 0.0% |
| D02 | London System | 2 | 1/1/0 | 50.0% |
| D02 | Queen's Pawn Game | 2 | 2/0/0 | 100.0% |
| B30 | Sicilian | 2 | 2/0/0 | 100.0% |
| B10 | Caro-Kann | 1 | 1/0/0 | 100.0% |
| B14 | Caro-Kann: Exchange Variation | 1 | 0/0/1 | 0.0% |
| B17 | Caro-Kann: Karpov Variation | 1 | 0/0/1 | 0.0% |
| D55 | Semi-Slav Defense | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2015 | Ignatius Leong | 1,948 | Tumon Guam Open | D02 |
| Jul 2015 | Jonathan Molod | 1,928 | Tumon Guam Open | D02 |
| Jul 2015 | Tito Cabunagan | 1,817 | Tumon Guam Open | D06 |
| Sep 2016 | Serguei Gontcharov | 1,793 | Olympiad-42 | B12 |
| Aug 2022 | Willy Mimbasa Kutesa | 1,755 | Olympiad-44 | B12 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Olympiad-44 | 2022 | 11 | 5.5 | 1,987 |
| Olympiad-42 | 2016 | 10 | 3 | 1,886 |
| Tumon Guam Open | 2015 | 9 | 6 | 2,228 |
| Olympiad-45 | 2024 | 8 | 1 | 1,702 |
Interactive opening tree from all 38 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Peter Mafnas's chess games?
38 games by Peter Mafnas, from Aug 2015 to Jul 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Peter Mafnas has played.
What does Peter Mafnas play on the first move as White?
Across 20 games with White in our database, Peter Mafnas opens with 1.d4 (75% of games), 1.c4 (20% of games), 1.Nf3 (5% of games). Against 1.e4 as Black, Peter Mafnas answers 1...c6 (82% of games), 1...c5 (18% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Peter Mafnas play as White?
As White, Peter Mafnas's most-played openings in our database are: Nimzo-Indian: Classical Variation (3 games, 33.3% win rate); English Opening (2 games, 0.0% win rate); Queen's Gambit (2 games, 100.0% win rate). The full breakdown of 20 games with White is in the table above.
What openings does Peter Mafnas play as Black?
As Black, Peter Mafnas most often plays: Caro-Kann: Advance Variation (6 games, 50.0% win rate); Slav Defense (2 games, 0.0% win rate); London System (2 games, 50.0% win rate). See the table above for the top ten Black openings across 18 games.
What is Peter Mafnas's FIDE rating?
Peter Mafnas is currently rated 1,830 in classical chess, 1,905 in rapid and 1,998 in blitz. Peak classical rating: 2,095 (Sep 2016).
How many games has Peter Mafnas played?
Our database contains 38 games by Peter Mafnas, covering Aug 2015 to Jul 2026. Overall record: 14 wins, 3 draws, 21 losses (36.8% win rate).
How do I prepare against Peter Mafnas?
38 games by Peter Mafnas reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.