tubechallenge.com

I'm not sure where the idea of not visiting certain stations has come from - provided you travel on the correct line, it doesn't matter if other lines serve the same station.

So (if we were to do 15 - or even 10 - reds and colours beforehand), it would be possible to travel to TCR on the Central then change to the Northern (or for that matter, to catch the Central from or pass through TCR). However what would not be permissible would be to catch the Central to TCR, then Northern to Leicester Square and follow that up by catching the Picc to Holborn to go round again as use of the Picc would constitute a foul shot (even though there isn't a purple ball in snooker!).

There is a fairly easy way to 'pot' 15 reds with colours, then the colours in sequence, but it would take a long time (if it was as little as 10 mins for each red/colour pairing that would be 2 1/2 hours!), be very repetitive, and not score very many points....

Realised this morning that it's possible to get a 133 break without leaving the network at all....

Now found a way to get 140....

140 what??

A 'break' of 140 treating the Tube lines as snooker balls - travel on the red line, then a 'colour' line (yellow, green, brown, blue, pink, black), then back on the red etc until 15 reds and colours have been 'potted', then the colours in sequence.

My girlfriend and I thought of one a while ago, and she reminded me of it yesterday...

Not the Tube Challenge!

Everything on the TFL map, except the tube. So Overground, DLR, Trams, TFL Rail and Cable Car.

Except should we include TFL rail all the way to Reading as it's outside the London Fare Zone? And what about Thameslink, which is now on the map but not operated by TFL? And isn't this challenge mad enough anyway that no-one would attempt it so it doesn't matter?