Increment versus sudden death in the habit cards
10+0 and 10+5 are not the same time control. Flagging in sudden death is a clock habit. Flagging with increment is usually a think-too-long habit. Do not average them.
Split games with increment from games without it before you read a time-trouble card. Chessigma should not treat a Bronstein finish as a zero-increment panic.
The last two minutes differ
With increment you can still calculate. Without it you are premoving. Those errors look the same on a PGN and are not the same leak.
Name the control on the card
If the headline says you flag, it should also say 15+0. A mixed bucket is how you drill the wrong fix.
Frequently asked questions
Is 3+2 blitz or bullet?
Blitz with increment. Keep it out of 1+0. Keep it out of 10+0 too.
What if my site labels both as rapid?
Believe the clock, not the label. Filter on minutes and increment.
Chessigma imports public Chess.com and Lichess history and reports repeated choices — not engine grades. Import your games · Methodology