A rule switching game.
Same cards. New rule.
Select the cards that fit the instruction. Then change the rule. Your selections stay in place, so you can see exactly what needs to change.
Six rules. No timer, account or ranking. Original web companion by the publisher of SkillArena; separate from the native game.
The Rule Desk
Rule 1 of 6 · 0 rules solved
Keep every blue card.
Shape and number do not matter for this rule.
Toggle cards to keep or leave them. A selected card says “Keep.” Color names and shapes are written out.
You can visit any rule without solving the previous one. Selections carry forward; explanations clear when you change a selection or rule.
Three small words change the whole set.
For a number challenge, try Two patterns in one sequence. Split the odd and even positions to find each missing number.
A different rule can make a correct selection wrong without changing a single card.
First name the attribute.
Every card has a color, shape and number. Start by deciding which attributes the current rule uses. “Keep triangles” does not ask whether a triangle is blue or whether its number is even. Those details are present, but they are irrelevant to that particular instruction.
Both conditions must be true. A blue card numbered 2 fails “blue AND above 3.” Matching only its color is not enough.
At least one condition must be true. In this game, OR includes cards that satisfy both conditions. A blue circle qualifies for “blue OR circle.”
Exclude the named condition. “NOT triangle” keeps the circles and squares in this six-card set. It does not mean “keep nothing.”
Keep the parentheses together.
For “(blue OR gold) AND even,” first ask whether the color is blue or gold. Then check the number. A gold 5 passes the color condition but fails the even-number condition. A coral 2 fails the color condition even though its number is even.
Card A: blue circle, 2. Card D: gold circle, 4.
Under “keep blue,” only A qualifies. Under “keep circles,” both qualify. Under “keep blue AND above 3,” neither qualifies. The cards did not change; the selection criterion did.
Use explanations as a comparison.
After checking, find one card where your decision and the rule disagree. Read the card’s attributes and the explanation together. Toggle that card if needed, then check again. The same set can be revisited without a penalty, streak loss or countdown.
When you change rules, this game deliberately keeps your old selections. That makes the difference visible. It is a design choice for this activity, not a model of how the SkillArena app scores a round.
Does this game test my attention?
No. It checks whether your selections match six explicitly stated rules. There is no population comparison, IQ score, clinical interpretation or claimed transfer to school, work or everyday concentration.
Can I play using the keyboard?
Use Tab to reach a card and Space or Enter to toggle it. Each card has a written color, shape and number, plus a pressed state. Check decisions moves focus to the explanation heading. Next and Previous move focus to the new rule.
Are the rules and cards part of SkillArena?
No. The Rule Desk is a separate original browser activity from Honest Little Apps. It is inspired by the general idea of following instructions, not a recreation of an app screen, native round or scoring system. Your selections are not saved or sent to the app.
Useful for someone else?
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