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 11 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Middlegame
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
josgar05
100
Phenomenonly
100
Origynalx3
92
pebIlmey
74
Mohammad_jabari
73
Three high scores
Phenomenonly
58
dcc_london
57
KirinoKousaka
51
Plattfuss
49
twopawn
37
Most infinity puzzles solved
droubbley
744
Ohanna_2020
634
DrOlliver
200
lemondestfou
180
JRoger
135
Past 24 hours
Haste high scores
josgar05
100
Phenomenonly
100
Origynalx3
69
pebIlmey
58
MasterPru2k
31
Three high scores
Phenomenonly
52
KirinoKousaka
50
Plattfuss
49
Most infinity puzzles solved
droubbley
353
Ohanna_2020
62
Hermion
47
wubadubalublub
16
awsomeanimallover
6
Yesterday
Fastest speedruns
Phenomenonly
57.9s
Boby
58.5s
Konstantin0201
88.7s
Plattfuss
100.7s
Rawkward
101.7s
Countdown high scores
Phenomenonly
69
Plattfuss
54
lemondestfou
44
law
37
N2Terrible
28
Unique puzzles solved
Phenomenonly
398
Mohammad_jabari
157
Plattfuss
151
Origynalx3
150
Ohanna_2020
127
Today
Fastest speedruns
Phenomenonly
77.7s
Boby
142.0s
Rawkward
262.4s
Countdown high scores
Phenomenonly
75
Unique puzzles solved
KirinoKousaka
419
droubbley
353
josgar05
196
Phenomenonly
190
i_sei
130
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
smuratore
59
Vicky
58
droubbley
54
anh_ce
39
Rook endgames high scores
Phenomenonly
100
dcc_london
99
N2Terrible
40
anh_ce
25
Openings high scores
Phenomenonly
100
anh_ce
26
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