Berolina pawn

It was invented by Edmund Nebermann in 1926,[3] who named it after the city of Berlin in which he worked.

Additionally, the Berolina pawn has found frequent use in chess problems.

The Berolina pawn moves, without capturing, one square diagonally forward.

[5] Pritchard writes, "Pawns have greater mobility and can concentrate in the centre, a common opening strategy.

[7] Ralph Betza vs. Will Viveiros; NOST[a] tournament (1977)[5] 1.ac4 ec5 2.d5 df5 3.bd4 Nc6 4.Bb2 Nf6 5.de3 e4 6.hf4 exe3 7.exe3 Ng4 8.Qd2 Qf6 9.Ne2 Nce5 10.Bc1 h6 11.ce4 Nc4 12.Qc3 Qg5 13.g3 Nf6 14.Nd2 Nxd2 15.Bxd2 f5 16.fe5 Nh5 17.d6 c6 (diagram) 18.e5 Qg7 19.Nd4 g4 20.Bb5 gxg3 21.Nxc6 cxc6 22.Bxc6+ Ke7 23.Bxa8 Ba6 24.c7 1–0 Two famous pawn variants also used in problem compositions are the Berolina Plus and the sergeant.