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FIDE ID 1550942 · born 1944 · last updated 5/12/2026
Standard
1449
Rapid
1549
Blitz
1478
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Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
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We checked our stored public PGN sources for FIDE ID 1550942 and do not have usable games for Marthinussen yet. Paste games below to run repertoire matching by play pattern.
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