Thanks to you both. With a little rest to help, this is all much clearer to me. It was a mistake to try the pin. Mayhaps we can call this game a caveat where it was I who took the bait, not my opponent (here, the bait being the d pawn).
Thanks again.
With an eye at #41+ re: countercheck on the queen with exd3, even allowing the arrival of the center pawns at black's doorstep (questionable at best?) at 13. g5 e4, is the following perhaps a correct calculation beginning with 14? Or at least 19... exf2+ is Ma06?
Here, and only because of the poor development followed by a blunder by black, the queen-side pin on the back rook worked. The blunder is where black takes the bait and captures axb5. Lots of different possible mates here.
Here's one which definitely qualifies: I really believe (please tell me if I'm wrong!) that I found the correct response to this early bite by the queen on a center pawn.
Post script: I might delete this one. White has some weird escape squares and black may not actually be able to sustain checks even with the king rambling in the open.
Not to flog a horse,
No. The correct terminology here is: you lost a horse.
Are you flogging that horse then? 
Here's one which definitely qualifies: I really believe (please tell me if I'm wrong!) that I found the correct response to this early bite by the queen on a center pawn.
Post script: I might delete this one. White has some weird escape squares and black may not actually be able to sustain checks even with the king rambling in the open.
It's a good example of compensation for a pawn. I would have played 12.Qd2 as white but still, after 12...0-0 13.Be2 Rad8 14.Qe3 Rfe8 15.0-0 Nf6 black is ready to win a pawn back with active pieces (threat is Bf5).
Computer gives different moves here and there, but that's what I calculated and it's fine.
12.Rb8 may give better practical chances, giving up the pawn right away and trying to create threats of his own. 17.Ke1 is bad because it drops a rook, but even if not, why is white blocking his back rank?
Sometimes we can bait by putting juicy pieces in seeming danger to massage an opponent into a more desirable position (especially if there's a questionable castle: note that again c3/d3 are the weak squares for white after O-O-O, as in the dead horse above). Here's one where my opponent creeps into a fork chasing the wrong pieces, and where a 2nd attack on a weak c3 pawn in front of the king comes in the form of a revealed checkpin leading to a nice little bing-bang to go up six.
People should really know what they're doing if they're going to fling their non-checking queen out on the second move. Here, the smothered trap on the queen after failure to initiate backup is laid by a center knight. Note that as it dawned on my opponent that she was done for after having traveled 12 chased moves kingside, he abandoned the game and let the clock run for over seven minutes. This is ridiculous: at least the sporting thing would have been to take the center knights exchange, be down only 2 points materially (although my advanced pawns would win), and try to pressure the doubled pawns in the center. Nope.
And? A broken opening/center in a 10 min blitz game where I resigned with time left. Relevant how? Oh, you wanted to post a loss. Just picked the last game I did (which was back four wins ago). Well, in your last ten finished games, you didn't play any players rated higher than you and never play humans at 10 min blitz on here, so whatever. Blocked.
(Not to perpetuate the off-topic flame, but on further inspection: I swear, frickin religious people. Creep me out.)
12. Nb5 was a premature move with no castle and the displaced bishop to cap the b-pawn on the reveal, so that 14. Bxd5 (in my opinion) sets the win. Way to take the center. But I see the bait pawn at 19. Nxc3. Thanks for returning it back to the chess.
I think the bait can sometimes be a critical square, here, e5.
Commentary expanded for previous post. Comments and counter-analysis welcome.
Commentary expanded for previous post. Comments and counter-analysis welcome.
Nice. What's the name for this opening (I haven't studied openings yet).
In the above I guess it technically starts out as an A40: Horwitz, but note that the thematic by black above can be played as white; the order depends on the opponent but the template is the same, and falls under A10: English. However, I give credit (always) to Bobby Fischer. It's especially nice in blitz games for depth, test-your-might, and density, as well as rolling the first 11-13 moves without a lot of clock (given some cooperation from your opponent, who might opt for a much more aggressive approach, which hopefully backfires). It does require some study (but here it's relatively easy to remember) to get the order right, which is dependent on your opponent's responses or aggression, but once set up there can be some really nice play down the king side supported by the queen and fianchetto.
The position does not require "deep" analysis. here is a "shallow" one:
From that position, in 100 games between two ~1000 rated players, I wonder if the outcome wouldn't be close to 50/50.
To explain white's advantage to them would require them to play many games and perhaps read a book or two.
My extremely long post may look foolish to you, but I hope it helped him a bit.