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 3 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
Phenomenonly
100
Laparrilla
94
josgar05
91
Origynalx3
87
mikezchess
81
Three high scores
Phenomenonly
57
dcc_london
56
KirinoKousaka
55
Plattfuss
42
Miau
40
Most infinity puzzles solved
nose
426
gewetz
406
Ladas65
317
jam67
254
JRoger
225
Past 24 hours
Haste high scores
Origynalx3
73
josgar05
72
vakkomondor
64
Vik007
38
XavierFRA
25
Three high scores
Miau
40
twopawn
36
davidyomtobian
29
Aa11001100
25
gewetz
23
Most infinity puzzles solved
gerk051
63
jam67
43
JRoger
14
TparTR
12
nose
12
Yesterday
Fastest speedruns
Phenomenonly
79.2s
moonman105
146.3s
Rawkward
162.5s
agndum
171.1s
Boby
200.8s
Countdown high scores
Phenomenonly
61
davidyomtobian
35
law
31
Mcappuccio
27
Fajar_Rizqi15
24
Unique puzzles solved
Phenomenonly
936
XavierFRA
327
Origynalx3
190
i_sei
181
koenigseggfanguy
162
Today
Fastest speedruns
Phenomenonly
57.8s
Boby
66.3s
moonman105
187.7s
Skmdtvi
621.1s
nickolaosgr
624.3s
Countdown high scores
law
41
vakkomondor
34
Miau
26
Unique puzzles solved
Origynalx3
465
josgar05
153
vakkomondor
151
anh_ce
137
Vik007
102
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
anh_ce
36
Ladas65
31
Ayachi
23
Rook endgames high scores
anh_ce
26
Openings high scores
dcc_london
88
koenigseggfanguy
35
smuratore
20
anh_ce
19
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