Daily Boulder Problem
On Sight
PLAY TODAY'S CHALLENGE
PLAY THE ARCHIVE
0
SENDS
0
PUNTS
Attempt Distribution
Onsight
0
2nd Go
0
3rd Go
0
LGBG
0
How to Play
You get 4 attempts to guess the boulder name.
The photo starts zoomed in and reveals more with each incorrect guess.
One new boulder every day. Build your streak by playing daily!
Add to your home screen for convenience —
View guide
Help the game continue —
Submit a Boulder
ON SIGHT
Daily Boulder Problem
FLASH ATTEMPT
ZOOM LEVEL 4X
SUBMIT GUESS
1 / 4 ATTEMPTS
Guess 1
Guess 2
Guess 3
Guess 4
ON SIGHT
CORRECT!
PROBLEM IDENTIFIED IN 1 ATTEMPT
Grade
Streak
0
Days
Next Up
14
h 22m
Climb hard, play harder. See you tomorrow.
SHARE RESULT
GO HOME
ON SIGHT
Better luck next climb!
The Big Reveal
Grade
Streak
0
Days
Next Up
14
h 22m
Climb hard, play harder. See you tomorrow.
SHARE RESULT
GO HOME
ON SIGHT
Submit a Boulder
Click here
to open in your mail app or send to
with the problem name, alternate names/spellings, grade, and location.
Your submissions are greatly appreciated!
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ON SIGHT
MAR
2026
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Proj List
Send
Punt
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ON SIGHT
Install Guide
Install On Sight for quick access — it works just like a native app, no App Store needed.
iPhone
Android
Desktop
1
Open Safari or Chrome
Visit
on-sight.app
in Safari or Chrome.
2
Tap the Share button
In
Safari
, tap the
Share
icon at the bottom of the screen.
In
Chrome
, tap the
Share
icon in the top-right corner of the address bar.
3
Tap Add to Home Screen
Scroll down in the share sheet and tap
Add to Home Screen
.
4
Confirm
Tap
Add
in the top right. The On Sight icon will appear on your home screen.
Open the app from your home screen — it runs fullscreen with no browser bar, just like a native app.
1
Open Chrome
Visit
on-sight.app
in Chrome.
2
Tap the menu
Tap the
Menu
in the top right corner.
3
Tap Add to Home Screen
Tap
Add to Home Screen
from the menu. You may see an "Install app" banner at the bottom of the screen — tapping that works too.
4
Confirm
Tap
Add
or
Install
when prompted. On Sight will appear on your home screen.
Chrome on Android may show an install banner automatically after a couple of visits — just tap it to install!
1
Open your browser
Visit
on-sight.app
in Safari, Chrome, or Edge.
2
Find the install option
In
Safari
, click the
Share
icon in the toolbar, then choose
Add to Dock
. You can also go to
File → Add to Dock
in the menu bar.
In
Chrome or Edge
, click the
Install
icon in the address bar, or open the browser menu and choose
Install On Sight
.
3
Confirm
Click
Add
or
Install
. On Sight will appear in your Dock or Launchpad (Mac) / Start menu (Windows).
GO HOME