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 15 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Sacrifice
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
Origynalx3
100
Phenomenonly
99
josgar05
85
mikezchess
81
evildays
81
Three high scores
Phenomenonly
61
dcc_london
57
Squarenerd
52
Plattfuss
47
KirinoKousaka
46
Most infinity puzzles solved
Sensei_T
301
WildheartGuff
268
droubbley
246
ap_is_the_best
227
nose
185
Past 24 hours
Haste high scores
Origynalx3
80
evildays
68
mikezchess
67
Mohammad_jabari
60
Squarenerd
54
Three high scores
dcc_london
57
Squarenerd
52
jenny_g
36
linearline
31
valen13221
29
Most infinity puzzles solved
WildheartGuff
21
Squarenerd
15
Bunny_Kid
12
yuh
8
papadoble
4
Yesterday
Fastest speedruns
Squarenerd
68.1s
mikezchess
76.3s
Konstantin0201
108.1s
Rawkward
121.6s
jenny_g
121.8s
Countdown high scores
Phenomenonly
91
Rawkward
59
Squarenerd
42
jenny_g
41
chess_person127
40
Unique puzzles solved
evildays
1048
dcc_london
390
Origynalx3
292
Mohammad_jabari
261
droubbley
246
Today
Fastest speedruns
LeafySnack
67.5s
Squarenerd
80.0s
Rawkward
112.4s
valen13221
249.3s
jugadatorrerifica
554.7s
Countdown high scores
Squarenerd
70
Rawkward
37
valen13221
35
Unique puzzles solved
Squarenerd
164
evildays
136
valen13221
136
jugadatorrerifica
80
MasterPru2k
79
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
ThomasH
87
jugadatorrerifica
68
Rawkward
49
Rook endgames high scores
dcc_london
89
Phenomenonly
87
Squarenerd
72
Maslenok
36
SPDRPortfolio
26
Openings high scores
dcc_london
97
Phenomenonly
84
Squarenerd
76
smuratore
29
anh_ce
23
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