British Championship 2016 - Day 1

Good morning from Bournemouth! This year's British Championship is now underway, and for the first time I am here for the duration. Since I'm playing in the Major Open, it is difficult to follow what's going on, and that's compounded by a weak internet connection - but I'll do my best to follow the format that I enjoyed writing last year. Only the top 30 boards are on the live broadcast, and they're all I have moves for - but I hope things will improve. (Perhaps the monitors above the top boards will be switched on, so I know what's happening from the other side of the room...)

My first game, by the way, was a loss - white in a Petrov of all things, but I faced a 189 and got gradually outplayed. (I resigned after his 40th move... after the arbiters spent 15 minutes trying to figure out how to set the clock for 40/90 + 30 +30s/move rather than G/90 + 30s/move!) But I'll come back to that after the tournament is over.

The Championship itself is probably stronger at the top than for several years, with Adams, Howell and Jones all playing. Today, both my game and puzzle are from the next rung down, starring two grizzled weekender veterans. Firstly, a nice brevity from Mark Hebden, where Black's pawn centre, bishop pair and active pieces prove more than enough for the sacrificed piece:

A few boards lower down, his usual partner in crime, Keith Arkell, wasn't so lucky, and was held to a draw in an opposite-coloured bishop endgame, having been in charge for most of the game. But he certainly had his chances...

O. Gill - K. Arkell: Black to Play

We'll start off with a comparatively gentle one, since I expect Arkell will be kicking himself having missed this - he's certainly won endgames far more drawish than this one. What is the most conclusive way for Black to convert his two-pawn advantage into a win here?