B
litz
T
actics
Achievements
Sign up
Fast-paced chess puzzles. Choose a game mode to get started.
Haste
Combos gain time. Mistakes lose time. New puzzles each run.
New puzzles each run
Three
Three minutes, three lives,
three hints
New puzzles each run
Countdown
Solve puzzles before time runs out. New level each day.
Next level in 3 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Queen Endgame
Infinity
Play through endless puzzles. Set your own difficulty.
Sign up
to track your progress
Repetition
Quickly solve puzzles without mistakes to unlock the next level.
Level 1 — Just warming up
Past 7 days
Haste high scores
Phenomenonly
100
josgar05
96
Origynalx3
89
evildays
79
mikezchess
73
Three high scores
Phenomenonly
62
dcc_london
59
Plattfuss
56
KirinoKousaka
54
MSanand
48
Most infinity puzzles solved
nose
462
jam67
417
usernoname
235
JRoger
191
WildheartGuff
184
Past 24 hours
Haste high scores
Phenomenonly
100
josgar05
96
evildays
69
JaviAlcanyiz_99
67
mikezchess
56
Three high scores
Phenomenonly
50
fschmidt
45
RV_RioGreat
41
valen13221
26
Aplastacucarachas
16
Most infinity puzzles solved
nose
69
JRoger
40
Artixklz
36
jam67
33
grudge7411
9
Yesterday
Fastest speedruns
Phenomenonly
71.0s
Kristian2504
77.2s
mikezchess
78.4s
Konstantin0201
106.0s
vakkomondor
108.5s
Countdown high scores
Phenomenonly
100
joaocsp
51
vakkomondor
47
Vega9001
38
Radpot
18
Unique puzzles solved
Phenomenonly
511
mikezchess
486
evildays
366
XavierFRA
360
vakkomondor
356
Today
Fastest speedruns
Phenomenonly
50.9s
Boby
66.5s
Kristian2504
79.1s
Rawkward
103.1s
Konstantin0201
105.3s
Countdown high scores
Phenomenonly
95
joaocsp
53
Aplastacucarachas
35
Unique puzzles solved
evildays
540
fschmidt
131
josgar05
123
XavierFRA
118
Phenomenonly
114
Themed chess puzzle sets.
Combos gain time. Mistakes lose time. New puzzles each run.
Mate in one
Practice checkmate in one move. Great for beginners.
Rook endgames
The most common type of piece endgames.
Openings
Practice tactical patterns from chess openings.
Past 3 days
Mate in one high scores
Phenomenonly
100
jugadatorrerifica
67
NaulitoPurito
58
MasterPru2k
47
smuratore
46
Rook endgames high scores
Phenomenonly
94
jugadatorrerifica
41
anh_ce
27
Openings high scores
Phenomenonly
83
jugadatorrerifica
43
nickolaosgr
20
anh_ce
20
MasterPru2k
12
Site updates
Sep 22, 2025
You can now
customize the pieces
on your board
Sep 17, 2025
Game mode puzzles have been upgraded to use the latest
Lichess puzzle database
Aug 17, 2025
After selecting a game mode, you can now resize the chessboard via the icon in the bottom-right corner.
May 23, 2021
You can now
create and play custom puzzle sets
. This feature is still early in development. Feedback is welcome!
Dec 19, 2020
You can now use right click to draw shapes on the board. Click to draw circles. Click and drag to draw arrows.
Dec 15, 2020
When you view puzzles after a haste round, puzzles you made mistakes on will now be clearly shown.
Dec 8, 2020
A new game mode (
Three
) is in beta. Have fun and let us know what you think!
Oct 7, 2020
Click the "view puzzles" button after a speedrun or haste round to view the puzzles you saw during the round.
Oct 1, 2020
If you forgot your password and signed up with an email, you can
reset your password here.
Feb 26, 2019
Rated mode
is now in beta. Expect a rating reset in the future after puzzle ratings stabilize and tweaks are made to the rating system. More features to come.
Feb 24, 2019
Turn sounds on/off using the volume icon in the header
Feb 21, 2019
You can now
customize your board colors
Links
Join the Discord channel
Practice endgame positions