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 5 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
Plattfuss
89
Origynalx3
83
Phenomenonly
81
josgar05
81
Silvia
79
Three high scores
dcc_london
56
Phenomenonly
54
Plattfuss
53
KirinoKousaka
53
Fedorduck
41
Most infinity puzzles solved
Yazanaaaaaa
487
Ohanna_2020
270
Ladas65
251
jam67
155
iburfen
152
Past 24 hours
Haste high scores
josgar05
73
vakkomondor
60
pebIlmey
55
Origynalx3
50
Vega9001
43
Three high scores
dcc_london
56
twopawn
33
Vega9001
29
MartialGuard
20
soriafabricio
20
Most infinity puzzles solved
iburfen
152
Ohanna_2020
92
zoike33
65
ameer1_2_3
50
Ladas65
49
Yesterday
Fastest speedruns
Rawkward
133.0s
Konstantin0201
140.6s
acatnamedchicken
639.5s
Countdown high scores
Rawkward
41
law
35
Unique puzzles solved
Meloblues
148
KirinoKousaka
135
josgar05
132
Vicky
119
jam67
113
Today
Fastest speedruns
Phenomenonly
68.2s
mikezchess
70.9s
Kristian2504
98.5s
Rawkward
123.7s
acatnamedchicken
347.4s
Countdown high scores
Phenomenonly
49
law
40
Vega9001
37
theonavs
22
Unique puzzles solved
Origynalx3
221
pebIlmey
207
iburfen
152
soriafabricio
148
dcc_london
146
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
Vicky
56
smuratore
55
Fedorduck
50
anh_ce
36
LagartoListo
5
Rook endgames high scores
Meloblues
35
Vicky
29
anh_ce
24
MasterPru2k
24
jajapple
24
Openings high scores
Vicky
39
MasterPru2k
23
anh_ce
19
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