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 20 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Mate In2
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
Origynalx3
95
Laparrilla
81
JPrime
74
Plattfuss
70
Three high scores
Phenomenonly
59
dcc_london
56
KirinoKousaka
51
Plattfuss
45
Vega9001
43
Most infinity puzzles solved
WildheartGuff
701
droubbley
605
nose
180
Hayate_kun
141
frazi
117
Past 24 hours
Haste high scores
Phenomenonly
100
Origynalx3
74
mikezchess
67
josgar05
64
MatTactics
35
Three high scores
dcc_london
56
Phenomenonly
55
ThomasH
39
cezrun64
29
linearline
27
Most infinity puzzles solved
WildheartGuff
201
droubbley
55
Srid
36
nose
25
papadoble
12
Yesterday
Fastest speedruns
mikezchess
76.8s
Phenomenonly
94.8s
Konstantin0201
96.6s
Kristian2504
100.4s
prawnsacrifice
159.5s
Countdown high scores
Phenomenonly
80
ThomasH
70
prawnsacrifice
56
joaocsp
43
law
34
Unique puzzles solved
Phenomenonly
848
ookinizay
576
Origynalx3
255
josgar05
216
WildheartGuff
201
Today
Fastest speedruns
Phenomenonly
68.5s
Countdown high scores
Phenomenonly
80
Dhakiyah
24
Unique puzzles solved
ookinizay
350
Phenomenonly
189
anh_ce
61
i_sei
50
linearline
28
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
ookinizay
65
jugadatorrerifica
64
MatTactics
51
Rook endgames high scores
dcc_london
99
Phenomenonly
95
jugadatorrerifica
56
Maslenok
47
anh_ce
26
Openings high scores
Phenomenonly
96
dcc_london
84
Vega9001
31
jugadatorrerifica
30
MatTactics
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