Bishop tier · Defensive · plays the London System
Roberto is a retired schoolteacher from Galway who plays chess the way he used to mark exams: carefully, and with no interest in surprises. Against the London he chooses the most structured reply he knows. He strikes with ...c5, brings the queen to b6 and, once your queen arrives on b3, closes the queenside with ...c4. After that he is content to sit behind a pawn chain that looks like a wall.
He is happiest in locked positions where nothing can happen quickly, and he will shuffle pieces for a long time if you let him. His weakness is the flip side of that patience. Because his attention is all on the queenside clamp, his king can end up with few defenders, and he tends to react slowly when the fight moves to the other wing. Roberto would much rather defend a bad position for forty moves than open lines himself.
At 1774 ELO, Roberto rarely gives material away for nothing. He is held to that rating by the engine, so you will see the occasional inaccuracy in quiet positions, but tactics are usually spotted. Games are won by building a better position over many moves and converting it carefully.
Against the London System (1.d4, Nf3 and an early Bf4) Roberto answers with ...d5 and ...Nf6, then hits the centre with ...c5. The plan is the most direct one Black has: pressure d4, bring the queen to b6 to eye b2, and push ...c4 to gain space on the queenside once White's queen has gone to b3.
1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.c3 Qb6 6.Qb3 c4
Learn it move by move: London System walkthrough
Beating Roberto trains you to recognise when the centre and one wing are closed and to switch your forces to the open sector. It also teaches patience against a rival who will not hand you anything.