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 17 hours
Speedrun
Solve a sequence of puzzles as quickly as you can.
Theme: Pin
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
96
Silvia
84
josgar05
81
Plattfuss
65
Three high scores
Phenomenonly
57
dcc_london
55
KirinoKousaka
55
Plattfuss
49
jajapple
34
Most infinity puzzles solved
little_bear12345
289
droubbley
220
jajapple
154
Ohanna_2020
143
JRoger
141
Past 24 hours
Haste high scores
Phenomenonly
100
josgar05
78
Origynalx3
78
KirinoKousaka
54
Eric1510
41
Three high scores
Phenomenonly
57
KirinoKousaka
55
dcc_london
51
Mcappuccio
24
twopawn
12
Most infinity puzzles solved
jajapple
51
Mcappuccio
48
yuh
13
scarsscars
13
JRoger
8
Yesterday
Fastest speedruns
Phenomenonly
59.1s
scarsscars
118.4s
acatnamedchicken
283.3s
Rawkward
286.1s
Countdown high scores
Phenomenonly
54
Mcappuccio
26
law
26
Unique puzzles solved
Phenomenonly
1318
soriafabricio
228
Origynalx3
222
Eric1510
205
Vicky
162
Today
Fastest speedruns
SalientDiamond
116.5s
Unique puzzles solved
Phenomenonly
101
MyPawnsEatPpl
39
SalientDiamond
30
anh_ce
18
yuh
5
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
MasterPru2k
38
anh_ce
35
Vicky
31
Rook endgames high scores
Phenomenonly
98
Vicky
35
anh_ce
27
MasterPru2k
26
Openings high scores
Phenomenonly
72
smuratore
35
MasterPru2k
31
anh_ce
25
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