1000–1500
Best openings for intermediate players
You already have a first repertoire. The work now is depth and one extra weapon — not a new opening every time you lose.
What changes at this level
Opponents stop falling for the Fried Liver. They play anti-Sicilians. They know the London exists. The opening still will not decide most of your games — tactics and the clock will — but a leak you repeat for twenty games will show up in your score.
Study the main line to ten or fifteen moves. Learn the two deviations you actually meet. Then play, and use the review to see whether you left the book or just hung a piece.
One White upgrade
If you played the Italian, the Ruy Lopez is the same open game with more tension. If you played the London, the English is the flexible alternative — not a second d4 system to keep in parallel.
One fighting reply
Against 1.e4, a Sicilian is a project: pick Kan/Taimanov or stay in the Caro-Kann and learn it deeper. Against 1.d4, the King’s Indian is the fighting option; Queen’s Gambit structures are the solid one. Not both until one is boring.
Depth, not a new first move
Ten to fifteen moves of the main line, plus the two or three sidelines you actually face. A new opening every month is how 1200s stay 1200.
As White
Graduate the Italian into the Ruy, or leave 1.d4 systems for the English. Keep the old opening as a backup until the new one is playable in a blitz game.
White · 1.e4 e5
Ruy Lopez
1.e4 e5 2.Nf3 Nc6 3.Bb5
The Spanish Opening: pin the knight that defends e5, and play for long-term pressure instead of a quick mate on f7.
White · 1.c4
English Opening
1.c4
A flank opening that can stay English, or transpose into a Queen’s Gambit, a reversed Sicilian, or a Catalan. Flexibility is the feature and the homework.
As Black
Against 1.e4, either commit to one Sicilian or keep a solid defence and learn it properly. The Caro-Kann still belongs here. Against 1.d4, the King’s Indian is the double-edged option.
Black · 1.e4
Sicilian Defense
1.e4 c5
Black’s most ambitious reply to 1.e4: fight for the centre from the side, keep winning chances, and accept a lot of theory in return.
Black · 1.e4
Caro-Kann Defense
1.e4 c6
A solid reply to 1.e4 that gets the light-squared bishop out, keeps a sound structure, and does not require a Sicilian-sized library.
Black · 1.d4
King’s Indian Defense
1.d4 Nf6 2.c4 g6
Black lets White take the centre, then tries to break it with ...e5 or ...c5 and a kingside attack. Double-edged on purpose.
What bleeds rating
Sharp openings you only know from a video. Mixing Najdorf and Dragon move orders. Dropping the Italian for the Ruy and the Sicilian in the same week. The 1200–1600 rating list is mostly this family, from a public Lichess dataset — not a claim about Chess Wizard users.
How to practise
- Play the new line in rapid first, not in a tournament you care about.
- After each game, check whether you got the pawn structure you wanted. If not, that is the next page of theory — one structure, not a new first move.
- If you hate theory, stay on the beginner list and go deeper. That is a valid intermediate repertoire.
FAQ
I am 1100. Is the Najdorf next?
Only if you will study it. A Kan or a deeper Caro-Kann will beat a Najdorf you half-remember. The opening that loses rating at this band is usually a sharp line played as a vibe.
Ruy Lopez or English?
Ruy if you like 1.e4 and already know the Italian. English if you want to step off the 1.e4/1.d4 highways and you are willing to learn what 1...e5 and 1...c5 are asking.
How do I know it is time to switch?
When you keep getting the same lost position from the same break, and you have already reviewed a handful of those games. One ugly weekend is not data. See also how many games stats need before they mean anything.