Can't Stop

Goal: Be the first to claim 3 columns by reaching the top of each!

The Board

The board has 11 columns numbered 2 through 12, arranged in a mountain shape. Column 7 (the middle) is the tallest at 13 spaces, while columns 2 and 12 are shortest at 3 spaces. This reflects the probability of rolling each sum with 2 dice.

Each Turn

1. Roll all 4 dice
2. Pair the 4 dice into 2 pairs (3 ways to do this). Each pair's sum determines which column you advance on.
3. Advance your temporary climber on those columns by 1 space each
4. Decide: Keep rolling (risk a bust) or Stop (save your progress)

Busting

If none of the 3 pairing options can be used (all target columns are blocked), you bust and lose all progress for this turn. Your turn ends immediately.

A column is blocked for a pairing if:

• The column is already claimed by someone, OR
• You don't have a climber on it AND you already have 3 active columns, OR
• Your climber is already on the top space of that column (the column is used up for this turn)

Claiming a Column

Reaching the top space uses that column up for the rest of your turn — your climber cannot advance there again. When you stop, every column holding one of your climbers on the top space is claimed: your marker stays there permanently and other players' progress on that column is removed. If you bust before stopping, nothing is claimed.

Winning

First player to claim 3 columns wins!

Controls

• Click Roll Dice to roll
• In the pairing phase, click one of the 3 highlighted pairing buttons
• Choose Keep Going to risk another roll, or Stop & Save to bank your progress

Probability Awareness:

• Column 7 is most likely (16.7% per roll), columns 2/12 are rarest (2.8%)
• When you have 3 active columns, bust probability spikes — consider stopping
• With fewer than 3 active columns, busting is very unlikely — keep rolling

When to Stop:

• Stop if you've made meaningful progress (2+ spaces advanced)
• Stop if bust probability exceeds ~40%
• Stop if you're close to claiming a column and want to secure it

When to Continue:

• Continue if bust probability is low (under 25%)
• Continue if you have fewer than 3 active columns
• Continue if you're one roll away from claiming a column

Column Selection:

• Prioritize middle columns (6, 7, 8) — easier to roll again
• Edge columns (2, 12) are quick to claim but hard to roll
• Don't spread too thin — focus on 2-3 columns

Can't Stop is a push-your-luck dice game designed by Sid Sackson and first published in 1980. It's considered a classic of the genre, renowned for its tension between greed and caution.

The game's brilliance lies in its simple rules masking deep probabilistic decisions. Every roll is a gamble — do you push for more progress or lock in what you have?

Psychology: Can't Stop is a fascinating study in risk tolerance. Players reveal their natural risk-seeking or risk-averse tendencies through their continue/stop decisions. This digital version tracks those decisions to create a risk profile — a self-reflection tool showing your tendencies under uncertainty.

This implementation features:

• ✅ Authentic rules with mountain-shaped board
• ✅ AI opponent with 3 difficulty levels using probability-based decisions
• ✅ Hot-seat multiplayer (2-4 players on one device)
• ✅ Risk profile tracking for self-discovery
• ✅ Precise bust probability calculation

Note: For entertainment and self-reflection. Not a psychological assessment tool.