Assuming the home was not used as a rental or any other business use, report it as the sale of a 2nd home. You'll do that in the Investments section. Elect to start/update Stocks, Bonds, Mutual Funds, Other and work it through.
When asked how you acquired the home make sure you select that you inherited it. Otherwise, you may be taxed at the higher short term capital gains tax rate on any gain you realized on the sale.
All numbers you are asked for, you will only enter 50% of the values since you only owned 50% of the property after inheriting it.
You will owe capital gains tax on the difference between the value of the home on the day the previous owner died and the price you sold it for. As long as you sold the home within a reasonably short time after inheriting it, then you probably don’t actually owe any tax, even though you must report this on your tax return, Because the sale price is usually a good estimate for the value at the time of the inheritance if they occur close together.
If you or any other relative lived in the house, since you inherited it, you cannot take a deduction for a loss on the sale of a residence, even a second home. Report the sale as the sale of personal use property (2nd home).
If the house was "investment property", and sat vacant all this time, you can deduct the loss. Report as the sale of investment property, not a 2nd home