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: Mate In1
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
88
luuu
82
evildays
78
Three high scores
dcc_london
55
KirinoKousaka
53
Phenomenonly
52
girdav
48
Plattfuss
47
Most infinity puzzles solved
jam67
526
nose
321
DrOlliver
300
droubbley
256
JRoger
187
Past 24 hours
Haste high scores
Phenomenonly
100
josgar05
89
luuu
82
evildays
77
Mohammad_jabari
74
Three high scores
Phenomenonly
52
Zero_Fallen2
22
Antichess2
11
Bautig
5
Most infinity puzzles solved
nose
76
jam67
75
Amrit127
64
Ohanna_2020
33
JRoger
31
Yesterday
Fastest speedruns
Phenomenonly
64.5s
Boby
85.2s
Kristian2504
111.7s
Konstantin0201
161.7s
nickolaosgr
361.8s
Countdown high scores
Phenomenonly
100
A1ph4z3r0
38
law
33
Unique puzzles solved
evildays
1370
Phenomenonly
669
josgar05
227
A1ph4z3r0
150
Laparrilla
138
Today
Fastest speedruns
Phenomenonly
29.8s
kardiyoloji
31.2s
Zero_Fallen2
65.8s
Konstantin0201
70.7s
nickolaosgr
141.0s
Countdown high scores
Phenomenonly
100
vakkomondor
38
law
35
Zero_Fallen2
30
valen13221
25
Unique puzzles solved
vakkomondor
842
Phenomenonly
324
josgar05
284
evildays
277
Mohammad_jabari
234
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
Vicky
57
RaulReti
56
MasterPru2k
43
nickolaosgr
36
Rook endgames high scores
Phenomenonly
100
dcc_london
89
Vicky
32
nickolaosgr
31
anh_ce
26
Openings high scores
Phenomenonly
100
nickolaosgr
26
koenigseggfanguy
25
Vicky
22
anh_ce
21
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