Klaas Siewertsen

Research Klaas Siewertsen’s games and opening repertoire

Klaas Siewertsen is rated 1538 in standard by FIDE. Klaas Siewertsen plays for Netherlands.

Klaas Siewertsen has FIDE ID 40111300.

Check the official FIDE record for ratings and identity. It is not a complete archive of game moves.

Use the openings as White and Black to identify recurring choices in the available games. Follow a branch into the repertoire explorer and inspect example games in the game history. Dates, time controls and sources affect which patterns are relevant to your next match.