Prepare against Rikka Mitsuyama
WCM · Japan · World #92,139 classical · FIDE ID 7002815
When preparing against Rikka Mitsuyama, expect 1.d4 in 87% of White games. Against 1.e4 the reply is 1...e5 (100% of games); against 1.d4, 1...d5 (100%).
Our database contains 49 games by Rikka Mitsuyama, covering Jun 2019 to Sep 2026. Below you'll find Rikka Mitsuyama's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Rikka Mitsuyama 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 | 1,752 | 1,758 | Sep 2025 |
| Rapid | 1,509 | 1,509 | Sep 2026 |
| Blitz | 1,630 | 1,630 | Sep 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 49 | 21 | 9 | 19 | 42.9% |
| As White | 23 | 14 | 1 | 8 | 60.9% |
| As Black | 26 | 7 | 8 | 11 | 26.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Rikka Mitsuyama's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Rikka Mitsuyama's side.
First moves as White (23 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 20 | 87.0% | 67.5% |
| c4 | 3 | 13.0% | 33.3% |
Main lines as White
- 1.d4 — 87% of White games, 67.5% score
- …Nf6 (50% of these games) — Mitsuyama usually continues c4 (65.0% score)
- …d5 (35% of these games) — Mitsuyama usually continues c4 (71.4% score)
- …b6 (5% of these games) — Mitsuyama usually continues e4 (100.0% score)
- 1.c4 — 13% of White games, 33.3% score
- …e6 (67% of these games) — Mitsuyama usually continues Nf3 (50.0% score)
- …f5 (33% of these games) — Mitsuyama usually continues Nf3 (0.0% score)
As Black against 1.e4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 11 | 100.0% | 31.8% |
As Black against 1.d4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 12 | 100.0% | 50.0% |
Rikka Mitsuyama's chess games
All 49 games by Rikka Mitsuyama in the Chess.ceo database (Jun 2019 - Sep 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: 21 wins, 9 draws, 19 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E91 | King's Indian Defense: Orthodox Variation | 4 | 3/0/1 | 75.0% |
| D53 | Queen's Gambit Declined | 4 | 3/0/1 | 75.0% |
| A13 | English Opening | 2 | 1/0/1 | 50.0% |
| D58 | Indian Defense | 2 | 1/0/1 | 50.0% |
| A85 | Horwitz Defense | 1 | 1/0/0 | 100.0% |
| E13 | Nimzo-Indian Defense | 1 | 0/1/0 | 0.0% |
| D20 | Queen's Gambit Accepted | 1 | 1/0/0 | 100.0% |
| D38 | Queen's Gambit Declined: Ragozin Defense | 1 | 1/0/0 | 100.0% |
| E21 | Queen's Indian Defense | 1 | 1/0/0 | 100.0% |
| D31 | Semi-Slav Defense | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C54 | Italian Game: Classical Variation | 4 | 2/0/2 | 50.0% |
| D35 | Indian Defense | 4 | 0/2/2 | 0.0% |
| A17 | Queen's Pawn Game | 3 | 2/0/1 | 66.7% |
| C92 | Ruy Lopez: Closed | 2 | 0/1/1 | 0.0% |
| C47 | Four Knights Game: Scotch Variation | 2 | 0/2/0 | 0.0% |
| D53 | Queen's Gambit Declined: Orthodox Defense | 2 | 1/0/1 | 50.0% |
| C77 | Ruy Lopez: Morphy Defense | 1 | 0/0/1 | 0.0% |
| D36 | Semi-Slav Defense | 1 | 1/0/0 | 100.0% |
| A11 | English Opening: Slav Setup | 1 | 0/0/1 | 0.0% |
| D35 | Slav Defense | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 2026 | Celina Palacios | 1,901 | 46th FIDE Chess Olympiad Samarkand 2026 | Women | Matches 1-25 | C54 |
| Aug 2021 | Isabelle Yixuan Ning | 1,774 | Online Olympiad Div3 A | E98 |
| Aug 2022 | Mirai Ishizuka | 1,719 | ch-JPN w | D36 |
| Sep 2024 | Gul Mehak | 1,709 | Olympiad Women-45 | A17 |
| Sep 2026 | Meritza Acham | 1,660 | 46th FIDE Chess Olympiad Samarkand 2026 | Women | Matches 1-25 | D53 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| World Cup U12 Girls Prel | 2021 | 10 | 5.5 | 1,397 |
| Online Olympiad Div3 A | 2021 | 9 | 4 | 1,535 |
| Olympiad Women-45 | 2024 | 9 | 5 | 1,815 |
| Olympiad Women-44 | 2022 | 7 | 3 | 1,442 |
| 46th FIDE Chess Olympiad Samarkand 2026 | Women | Matches 1-25 | 2026 | 7 | 3.5 | 1,798 |
| ch-JPN w | 2022 | 5 | 4 | 1,791 |
| ch-EASTERN ASIA U14 Girls 7th | 2023 | 1 | 0 | 1,302 |
| 46th FIDE Chess Olympiad Samarkand 2026 | Women | Matches 51-75 | 2026 | 1 | 0.5 | 1,581 |
Interactive opening tree from all 49 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Rikka Mitsuyama's chess games?
49 games by Rikka Mitsuyama, from Jun 2019 to Sep 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 Rikka Mitsuyama has played.
What does Rikka Mitsuyama play on the first move as White?
Across 23 games with White in our database, Rikka Mitsuyama opens with 1.d4 (87% of games), 1.c4 (13% of games). Against 1.e4 as Black, Rikka Mitsuyama answers 1...e5 (100% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Rikka Mitsuyama play as White?
As White, Rikka Mitsuyama's most-played openings in our database are: King's Indian Defense: Orthodox Variation (4 games, 75.0% win rate); Queen's Gambit Declined (4 games, 75.0% win rate); English Opening (2 games, 50.0% win rate). The full breakdown of 23 games with White is in the table above.
What openings does Rikka Mitsuyama play as Black?
As Black, Rikka Mitsuyama most often plays: Italian Game: Classical Variation (4 games, 50.0% win rate); Indian Defense (4 games, 0.0% win rate); Queen's Pawn Game (3 games, 66.7% win rate). See the table above for the top ten Black openings across 26 games.
What is Rikka Mitsuyama's FIDE rating?
Rikka Mitsuyama is currently rated 1,752 in classical chess, 1,509 in rapid and 1,630 in blitz. Peak classical rating: 1,758 (Sep 2025).
How many games has Rikka Mitsuyama played?
Our database contains 49 games by Rikka Mitsuyama, covering Jun 2019 to Sep 2026. Overall record: 21 wins, 9 draws, 19 losses (42.9% win rate).
How do I prepare against Rikka Mitsuyama?
49 games by Rikka Mitsuyama 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.