File:Screenshot e3-Nf6-c3-d5-Bb5-c7-Qb3-h6 triagonal.png

Annotated screenshot of the entire position on Standard, after 1. e3 / Nf6 2. c3 / d5 3. Bb5 / c6 4. Qb3 / h6 The triagonal to (0T1)f7 has been annotated