Every move, honestly graded.
You play the dan's moves in complete, fully analyzed games against weaker opponents. Every game is played and analyzed by KataGo's human-style networks at the stated dan and kyu strengths. Each guess is scored by win rate against KataGo analysis — no vague "good move" pats on the head. Your Dan Level % is the share of your moves that held dan strength.
See why the better move wins.
When a weaker player slips, Compare puts you in their shoes and asks for the stronger move — then shows both futures side by side: the game as it went, and the game as it should have gone — unfolded move by move at 5-, 7-, and 9-dan strength.
Earn your way up.
Start free with two complete 1 Dan games. Score 60% Dan Level on both and the 2 Dan pair opens — then 3 Dan, then 4 Dan, eight free games in all, each unlock permanent. Road to Shodan Pro is a one-time purchase that opens all 100 games, the 5 Dan tier, and every practice problem. No subscription. No ads. No account.