Reflex Chess

How to improve at chess at 800 Elo

Something specific happens between 600 and 800. Checkmate stops being the answer to half the positions, and one tactic takes its place almost entirely.

The band where the fork takes over

Of the 67 rating-drawn positions between 800 and 1000, 19 are a fork. That is 28% and it is the highest fork share anywhere on the ladder -- by 1800 it is down to 9%. If you fix one pattern at this rating, fix this one.

Meanwhile checkmate stops carrying the band. It answered 58% of positions below 800 and answers 27% here. Mate in one drops from 12 to 7. The wins are still short, but they are now material rather than mate.

The other visible shift is the second move. Below 800, 12 of 45 answers were a single move. Here it is 7 of 67, and 50 of the 67 ask for two. Two moves is now the normal length of a win.

Where these numbers come from. The trainer holds 10,440 positions from the Lichess puzzle database. Most were chosen by theme, so counting themes across all of them would only measure what we picked. Six of the 87 skills were drawn on rating alone and nothing else -- 720 positions in total -- and every band figure here is counted out of the 67 of them rated in this band.

Two limits worth knowing. No position in the trainer needs more than 3 moves from you, which is a rule we applied when selecting them and not a fact about chess. And Lichess tags one label per idea, so a move that is a fork and a deflection at once is counted once, under whichever tag it carries.

What a fork actually asks of you

A fork is one move that creates two problems when your opponent only gets to answer one. Knowing that is not the skill. The skill is noticing, before you move, that two of your pieces are a knight's jump from the same square -- and noticing when two of theirs are.

What to train at 800

Drill forks until you stop needing to look for them120 fork positions across five graded levels. There is a printable version too if you would rather work on paper.Practise forks

Work on paper if you prefer

Why do I keep losing my knight at 800?

Because the fork is the most common tactic in this band -- 19 of 67 positions -- and a knight is both the usual attacker and a frequent victim. The fix is counting in pairs: a knight forks two pieces only when they sit on the same colour square.

Should I learn openings at 800?

There is very little to practise on if you do. Every opening pool in this trainer starts above 1000, because that is where opening positions start producing tactics people get wrong. Two more months of forks will do more.

How many puzzles a day at 800?

Small and daily beats large and occasional, and that is about as far as anything here can honestly take you. One lesson is four positions and takes roughly two minutes, which is the size this trainer is built around.