Beat the clock. Climb the rankings.
Free · Ad-supported · iPhone only · iOS 17+
60 seconds per position. White or Black is clearly winning — no draws. Many positions every day to sharpen your instincts.
30 seconds per position. Three possible answers: White, Equal, or Black. Subtler evaluations, faster decisions.
10 seconds. The same three answers, but evaluations within ±0.25 pawns. The slightest edge makes the difference.
Choose Amateur, Advanced, or Grandmaster. Each mode has many positions every day.
A chess position appears with a countdown timer. Decide: does White win, Black win, or is it equal?
Correct answers score up to 100 points. The faster you answer, the higher your score. Wrong answers deduct points.
Compare your daily, weekly, monthly, and all-time scores against players worldwide. Three separate leaderboards, one for each mode.