Blitz time controls: 3+0, 3+2, 5+0, and 5+3 compared

What officially counts as blitz

FIDE draws the line with a formula: a game is blitz when base time plus 60 times the increment is 10 minutes or less per player. So 5+3 (5 + 60×3s = 8 minutes) is blitz, while 10+5 (15 minutes) crosses into rapid. Anything from over 10 minutes up to 60 is rapid; beyond that, classical.

Below blitz sits bullet — under 3 minutes by the same formula — which is really its own discipline; see our bullet guide. Blitz occupies the sweet spot: fast enough that every game is an event, slow enough that real chess happens.

The popular blitz controls, compared

All four are one tap away in Chess Clock: 3+0 and 5+0 are free presets, with 3+2 and 5+3 in the Pro set alongside the tournament controls.

3+2 versus 3+0: what two seconds change

Two seconds per move sounds like nothing. It changes everything about how blitz games end.

In 3+0, sudden death rules the endgame. A player with 10 seconds against 40 is usually lost regardless of the position: the opponent can shuffle pieces and win on time. "Dirty flagging" — playing objectively bad but fast moves purely to run the opponent's clock — is a legitimate and decisive skill.

In 3+2, a player down to 5 seconds who knows the technique can still convert a winning endgame, because each quick move earns 2 seconds back and a simple position can be played nearly on increment alone. Games end in checkmate, resignation, or genuine draws far more often. This is precisely why FIDE chose 3+2 for the World Blitz Championship: the results reflect chess skill rather than pure hand speed. If you play blitz to improve, prefer the increment; if you play it for the scramble, 3+0 is honest fun.

Running over-the-board blitz with a phone clock

Blitz is the format where clock handling matters most, and a phone timer handles it well with a few habits:

• Lay the phone flat at the board's halfway line. In Chess Clock each half of the screen rotates toward its player, so both read their time at a glance.
• Airplane mode first. A notification during a 10-second scramble ruins the game; offline, the clock is bulletproof.
• Same hand rule, strictly. In blitz the temptation to move with one hand and tap with the other is strongest — agree up front that it doesn't fly.
• Watch the tenths. Under 20 seconds the display shows tenths of a second, so "who flagged first" arguments settle themselves.
• Check the history between games. The per-game record of time used and average seconds per move shows exactly where your blitz clock leaks — usually two or three long thinks that a stronger player would spread out.

Why blitz owns casual over-the-board chess

Walk past chess players in any park — Washington Square, a café in Berlin, a campus lounge — and they are playing blitz. The reasons are practical: a 5-minute game fits any pocket of free time, a losing streak can be avenged immediately, and the time pressure manufactures drama that a slow casual game can't. Best-of-five at 3+2 takes half an hour and feels like a heavyweight match.

Blitz is also genuinely useful training in moderation: it drills openings, sharpens tactical pattern recognition, and teaches clock management under pressure. The classic advice stands — play blitz for fun and reflexes, play slower games to actually think — but as a way to make over-the-board chess with friends exciting, nothing beats it. Grab a board, prop up the clock, and play.