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: 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
ERSamuels
92
luuu
87
Mohammad_jabari
85
donklemonglr
80
Silvia
79
Three high scores
dcc_london
55
ERSamuels
53
twotonostrich
51
KirinoKousaka
48
Fedorduck
45
Most infinity puzzles solved
nose
440
Mastrocoltello
415
mang0sunr1s3
146
anh_ce
110
DrOlliver
100
Past 24 hours
Haste high scores
luuu
79
Silvia
79
Origynalx3
78
Noxie22
70
HusTak
68
Three high scores
dcc_london
52
twopawn
28
constantin10s
26
Leandro22
25
Most infinity puzzles solved
nose
178
DrOlliver
50
dubber
25
anh_ce
23
constantin10s
20
Yesterday
Fastest speedruns
Kristian2504
49.5s
Konstantin0201
59.9s
Fedorduck
73.0s
jugadatorrerifica
82.3s
Engin
124.0s
Countdown high scores
Frandy
100
Amaro
58
Unique puzzles solved
Mohammad_jabari
385
dcc_london
378
Noxie22
236
Silvia
177
jugadatorrerifica
174
Today
Fastest speedruns
Kristian2504
60.0s
constantin10s
73.7s
Konstantin0201
82.7s
Fedorduck
84.5s
jugadatorrerifica
107.8s
Countdown high scores
Frandy
82
Amaro
76
cezrun64
42
constantin10s
35
Leandro22
22
Unique puzzles solved
luuu
626
Silvia
422
Noxie22
321
constantin10s
299
Mohammad_jabari
293
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
jugadatorrerifica
60
Bhaskar_2001
36
Varun_Vignesh
32
Matvei
28
Rook endgames high scores
dcc_london
78
Frandy
63
jugadatorrerifica
48
Bhaskar_2001
29
nickolaosgr
24
Openings high scores
dcc_london
98
wubadubalublub
50
jugadatorrerifica
36
Vicky
33
Fedorduck
20
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