Open Alkmaars Schaakkampioenschap 2023 – J'ADOUBE
Attacking Repertoire for Club Players for Black | Chessable
Chessable
Midas Ratsma, Chessable Author - Chessable
De beste schafeltennisser van Nederland | Nieuwe Revu
FM Midas Ratsma (wolfje95) – Profil - Chess.com
Amsterdam Chess Open Live Report – Deel IX – Rick Lahaye triomfeert; salonremise volstaat
Chess.com Community on X: "Always alert! Good tactics advice from #chesspunks coach FM Midas Ratsma 🧩🔥 https://t.co/uiaAp7M1rS" / X
Overtuigende zege schaakteam Voorschoten
Midas Ratsma - Wikipedia
Midas Ratsma - Leiden, Zuid-Holland, Nederland | professioneel profiel | LinkedIn
Midas Ratsma, Chessable Author - Chessable
FM Midas Ratsma – Attacking Repertoire for Club Players for Black – Chessdom
Schafeltennissers gaan tot het gaatje - RTV Katwijk
Coach's Corner: Midas Ratsma - Chess.com
Rosa Ratsma – Wikipedia
YottaBase - Free Chess Games of Midas Ratsma
chess24 - Time to look at what's happening this weekend at... | Facebook
Ilja Schneider wint 44ste Qonnected B.V. schaaktoernooi - Schaaksite
Short & Sweet: Ratsma's 1. e4
Attacking Repertoire for Club Players for Black | Chessable
Rosa Ratsma grote verrassing bij NK-jeugd - Schaaksite
Ratsma, Midas
