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: Knight Endgame
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
95
Origynalx3
90
vakkomondor
83
evildays
81
Three high scores
Phenomenonly
59
dcc_london
58
Plattfuss
53
KirinoKousaka
53
twopawn
32
Most infinity puzzles solved
droubbley
405
jam67
332
JRoger
223
DrOlliver
200
nose
174
Past 24 hours
Haste high scores
josgar05
95
Origynalx3
86
Mohammad_jabari
76
JPrime
62
vakkomondor
56
Three high scores
Phenomenonly
53
dcc_london
52
XavierFRA
25
Plattfuss
22
Most infinity puzzles solved
droubbley
104
jam67
75
JRoger
60
Amrit127
35
Akmaaa777292
34
Yesterday
Fastest speedruns
Phenomenonly
72.8s
Plattfuss
122.9s
Boby
176.9s
Countdown high scores
Phenomenonly
93
Plattfuss
39
Rhino_sw
33
valen13221
31
Dhakiyah
23
Unique puzzles solved
Phenomenonly
753
vakkomondor
264
Dualfn
230
josgar05
175
dcc_london
157
Today
Fastest speedruns
kardiyoloji
65.7s
Phenomenonly
77.7s
Boby
124.6s
Casper6600
142.0s
soriafabricio
205.1s
Countdown high scores
Phenomenonly
91
law
28
Unique puzzles solved
Phenomenonly
368
XavierFRA
297
Origynalx3
282
dcc_london
215
josgar05
195
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
smuratore
58
Vega9001
48
anh_ce
37
MasterPru2k
24
Rook endgames high scores
Phenomenonly
99
dcc_london
81
Vega9001
52
anh_ce
27
MasterPru2k
20
Openings high scores
Phenomenonly
94
MasterPru2k
29
anh_ce
22
Vega9001
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