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 6 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Zugzwang
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
98
josgar05
97
Origynalx3
83
evildays
83
JaviAlcanyiz_99
76
Three high scores
Phenomenonly
57
dcc_london
56
Plattfuss
49
KirinoKousaka
44
twopawn
40
Most infinity puzzles solved
nose
250
JRoger
167
TheWanderingTaoist
133
grudge7411
101
Sensei_T
89
Past 24 hours
Haste high scores
Phenomenonly
98
josgar05
90
Origynalx3
83
evildays
83
JaviAlcanyiz_99
76
Three high scores
Phenomenonly
52
KirinoKousaka
44
Tantalyse
39
troysharples
30
ithinkicanwin
30
Most infinity puzzles solved
TheWanderingTaoist
133
beastcrew_pl
62
pigeon
28
troysharples
24
sebaszeuss
22
Yesterday
Fastest speedruns
kardiyoloji
62.3s
Kristian2504
93.6s
mikezchess
125.2s
Phenomenonly
134.4s
Konstantin0201
166.4s
Countdown high scores
Phenomenonly
100
wclpson
25
valen13221
23
Unique puzzles solved
evildays
1147
dcc_london
336
Mohammad_jabari
253
josgar05
229
Phenomenonly
191
Today
Fastest speedruns
Phenomenonly
77.0s
mikezchess
79.9s
Kristian2504
101.0s
Tantalyse
102.6s
vakkomondor
120.0s
Countdown high scores
Phenomenonly
100
law
39
vakkomondor
37
Tantalyse
33
Unique puzzles solved
evildays
788
Phenomenonly
673
vakkomondor
500
josgar05
272
Origynalx3
239
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
dcc_london
100
vakkomondor
73
donkechess
70
jugadatorrerifica
63
Rook endgames high scores
Phenomenonly
95
dcc_london
93
jugadatorrerifica
58
Rawkward
53
vakkomondor
47
Openings high scores
Phenomenonly
78
vakkomondor
54
jugadatorrerifica
40
Rawkward
29
nickolaosgr
28
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