Orb-relaxed Fe20 Co4 B10 boride candidate. CIF SHA256 8b144904f43d6711dc435a54981d1564408555d928a0ffd758c33dbae6f1518d. Unconstrained variable-cell ML relaxation; no DFT. Ouro same-formula novelty, hull stability and magnetic performance remain under review; cross-composition framework novelty is separate. GPAC-authored two-site B interstitial on attributed known Ni3P/Fe3B packing, with four-site Co/Mo/W/Ti substitution. The original Ni3P coordinates are represented by the AFLOW library. This complete boride is generated and is not a published experimental phase. Known metal-parent ancestry remains explicit; occupied-framework novelty is unresolved and no parent energy, moment or anisotropy is transferred. Attributed known Ni3P/Fe3B packing, AFLOW A3B_tI32_82_3g_g-001. Retain all original positions, map Ni to Fe and P to B, replace four uncentered Ni1 positions by Co/Mo/W/Ti, and insert two B atoms on one complete previously empty special-site orbit. The extra B changes occupied support while known metal-parent ancestry remains. These are generated hypotheses, not published phases or new parent families. Alloy rationale: https://doi.org/10.3390/ma15175990