

Remove the worse half of the map - Round 24
Round 1: Asia/Oceania/Russia is eliminated
Round 2: Americas are eliminated
Round 3: Africa is eliminated
Round 4: East/North/Central Europe is eliminated
Round 5: Tomato Western Europe is eliminated
Round 6: France/Belgium/Luxembourg/Switzerland is eliminated
Round 7: Netherlands/Ireland/Iceland is eliminated
Round 8: Scotland/Isle of Man/Far North England is eliminated
Round 9: Eastern England is eliminated
Round 10: South West England/Worcestershire/Warwickshire/West Midlands/Staffordshire is eliminated
Round 11: North West England/Shropshire/Herefordshire is eliminated
Round 12: South Wales is eliminated
Round 13: Ceredigion/Powys/Wrexham (Wrecsam)/Flintshire (Sir y Fflint) is eliminated
Round 14: Conwy/Denbighsire (Sir Ddinbych) is eliminated
Round 15: Isle of Anglesey (Ynys Môn) is eliminated
Round 16: South Gwynedd is eliminated
Round 17: Northwest Gwynedd is eliminated
Round 18: Bangor/Bethesda/Aber/Pentir/Felinheli/Llanllechid/Llanddeiniolen/Llandygai is eliminated
Round 19: Caernarfon/Llanrug/Waunfawr/Llanberis is eliminated
Round 20: Bontnewydd/Llanwnda/Betws Garmon is eliminated
Round 21: East Beddgelert is eliminated
Round 22: Southwest Beddgelert is eliminated
Round 23: Rural Northwest Beddgelert
For Round 24 we are down to the village of Beddgelert - I slightly adjusted the borders from the previous round to reflect that.
For more information on the town, Wikipedia has some useful info here. There is also a page on the famous dog Gelert, who has a memorial in the field to the south.
Google Maps may also be helpful for those looking to make an informed choice.