Scott Fowler: Crucial 20 minutes. If one wicket goes, two or three could follow. If these two see it through, it's going to be an interesting day tomorrow.

Stokes off, and England turn back to off-spinner James Tredwell. Slip, short leg and short mid-off posted - is he tempting Blackwood to go over the top? After four dot balls, deep mid-off comes up a few yards, but Blackwood survives a maiden over.

Graeme Swann
Ex-England spinner on BBC Test Match Special

"Jermaine Blackwood's innings has been one of the more bizarre I've seen in Test cricket. Second ball he ran down the wicket and hit Tredwell over mid-off for four. He's also hit three other bowlers back over their heads. And yet he's only on 26 from 70 balls."

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Image source, Getty Images

Chanderpaul executes a careful, graceful hook shot at a Broad bouncer to bring up the fifty partnership and also take West Indies' score to 150. Six overs left (or more realistically, 16 minutes).

Jack Mendel: England's attack is all similar pace, quite bland. Bar Anderson all too short and not moving it enough. Need some more variation.

Adam Wheeler: Tredwell has bowled well. Just think Rashid would have offered variety. Something different. Shame.

England persist with Stokes, who's not exactly looked their most likely wicket-taker today (that no-ball "wicket" excepted), but the game is petering towards a close here in a fairly limp fashion. Blackwood plays out a maiden over.

Ed Smith
Ex-England batsman on BBC Test Match Special

"This is an absolutely classic Chanderpaul innings: patient, crabby, gritty."

Broad comes round the wicket to the left-handed Chanderpaul, who removes his battered maroon helmet between deliveries to wipe the sweat off his forehead, before effortlessly guiding Broad for four between the slips and backward point.

Jonathan Agnew
BBC Test Match Special

"England will look back on today as a missed opportunity in terms of batting. They still have the advantage, they've kept chipping away with wickets and they've kept things very tight, but they could have done with that Blackwood wicket."

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Chanderpaul has taken 69 balls to score 19 runs before he settles down for a new over from Stokes. As if to add to England's agony, the TV pictures keep replaying and replaying that "wicket" from the Stokes no-ball. Just a single from the over.

We're now past the official close of play and into the "extra" half-hour to allow England to attempt to bowl the last nine overs. Which they will struggle to do bowling seam.

Nigel Pearson in Leeds: At last! Aggers, thank you very much for pointing out the ridiculous situation which seems to have arisen in televised matches with respect to no-balls, where umpires seem to have decided unilaterally that they won't bother looking for them any more as they can check if there's an appeal. Thereby depriving the batting side of what might be crucial runs. Someone should have a word.

Jordan's off and Stuart Broad will have one last spell before the close. Blackwood is either growing in confidence or he's learning a bit about crease-occupation from old man Chanderpaul, who must be the master of that particular art. Heartfelt effort from Broad, but it only brings him a maiden over.

Ian Bradley: Beyond the pale throwing wickets away pinching inches, sort it out Stokes.

Eleanor Cunningham: Chanderpaul - a quiet model of sportsmanship, poise and determination for 20 years: much respect.

Image source, Reuters

It's as though England were building towards that moment when Stokes's no-ball denied them a wicket - but the Durham man is giving it everything, a fast yorker hits Chanderpaul on the boot and there's a half-hearted appeal from behind the stumps but not really from the bowler. 11 overs for England to bowl in 40 minutes.

Michael Vaughan
Ex-England captain on BBC Test Match Special

"Ben Stokes is trying to be a very English-type bowler. But when I've seen him bowl really well for Durham, I've seen him bowl short spells: really fast, with lots of bouncers. He looks like he's in better rhythm when he's just trying to bowl quick with no real method to it. If he just tries to bowl line and length, this attack looks really samey."

Andrew Samson
BBC Test Match Special statistician

"I've just seen a sequence of Stokes bowling on the TV - half his foot was behind the line for every delivery until the wicket."

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Aggers on TMS thinks it's a "cop-out" that umpires aren't calling no-balls as often, just checking when there's a wicket taken, and I'm inclined to agree. Unlike with Blackwood, safe to say we won't see any lofted drives over the bowler's head from Chanderpaul, though he helps a loose delivery from Jordan for a single to fine leg. A single takes Blackwood to 26.

Reprieved, Blackwood smacks a lofted straight drive over the non-striker's head for four. Meanwhile, newly-restored England bowling coach (and former Windies coach) Ottis Gibson does not look a happy man on the balcony.

Andrew Samson
BBC Test Match Special statistician

"Ben Stokes was denied what should have been his first Test wicket at Adelaide in 2013, when he dismissed Brad Haddin off a no-ball."

Michael Vaughan
Ex-England captain on BBC Test Match Special

"It was a terrific catch by Alastair Cook. Disappointment because it was a good ball with a bit of pace on it from Ben Stokes, which I think is the way he's got to bowl."

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