B
litz
T
actics
Achievements
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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 2 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Interference
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
Origynalx3
100
Phenomenonly
100
Plattfuss
79
josgar05
78
pebIlmey
64
Three high scores
Phenomenonly
57
dcc_london
56
KirinoKousaka
55
Plattfuss
43
jajapple
34
Most infinity puzzles solved
droubbley
278
JRoger
182
jajapple
135
Ohanna_2020
126
DrOlliver
100
Past 24 hours
Haste high scores
Plattfuss
79
Origynalx3
71
Laparrilla
60
josgar05
59
i_sei
54
Three high scores
dcc_london
53
KirinoKousaka
51
Plattfuss
38
twopawn
26
MaxBlunders
24
Most infinity puzzles solved
DrOlliver
50
Ladas65
40
nose
36
grizz
31
JRoger
28
Yesterday
Fastest speedruns
Phenomenonly
71.6s
mikezchess
72.2s
jajapple
77.7s
Rawkward
84.0s
Plattfuss
93.2s
Countdown high scores
Phenomenonly
71
law
46
Plattfuss
45
cyberu
34
Rawkward
30
Unique puzzles solved
i_sei
347
Origynalx3
328
soriafabricio
251
cyberu
225
dcc_london
182
Today
Fastest speedruns
Rawkward
100.5s
moonman105
213.7s
nickolaosgr
861.2s
Countdown high scores
Phenomenonly
66
zoike33
16
Unique puzzles solved
Origynalx3
404
josgar05
169
dcc_london
164
anh_ce
154
i_sei
150
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
dcc_london
100
Phenomenonly
77
jugadatorrerifica
66
smuratore
62
MasterPru2k
49
Rook endgames high scores
MasterPru2k
35
jugadatorrerifica
33
ChMouse
28
nptk456
26
anh_ce
25
Openings high scores
anh_ce
22
nptk456
21
MasterPru2k
15
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