Stephen Wright has kindly posted the full games over here, so below is a quick overview of my games, in their critical moments. As you can see, I started with two good wins, but was then struggling to score a win until the last round, which did help me to 'save face'.
Round 1. Jiganchine - MacKay (1:0)
After 16... Kxe7 (variation)
White got a great attacking position in the Sicilian (which happens to me quite rarely), and Black had to give up a piece just to not get mated. Here is one of the "sacrificial" attacks:
17. Rxe5+!! dxe5 18. Bc5+ Kf6 (18... Ke8 19. Qd6) 19.Qf3+ Kg5 20. Be3+ Kh4 21. Qg4#
Given the strength of my opponent in this game (an FM who was once a member of the Scotch national team) - this was probably one of my best games ever.
Round 2. Davies - Jiganchine (0-1)
After 23. Bc4
I stopped liking the 'dynamics' of the game - White was about to play Ne3, and neither d5 nor f5 would be possible for me. So it seemed like I must try to break up White's bind on light squares and open up some files to expose his king.
So I came up with the pawn break that in the end worked out to my advantage
23... d5! 24. exd5 f5! The pressure on the f and b files was soon to much for white to bear, and after Nf5-d6xc4, the b3 pawn fell, and then the White king got under a mating attack. Perhaps this was my most satisfying game with the Sveshnikov so far.
Round 3. Jiganchine - Patterson (0-1)
After 35... f4
In in an unclear position I made a couple of aggressive moves, but my opponent discovered a hole in my plot. While I though my queen was putting pressure on Black king and pawns, it turns out that Bd8 is about to win my queen, and h3 is about to threaten checkmate. 36. Nd4 was an interesting suggestion from the computer (with the idea of after exd4 playing Re1, Re6 and going for the perpetual), I played 36.f3 (so that I can play Qg4 after Bd8) and after 36... h3 my king soon got burned (although there were a couple of chances to make things complicated along the way).
Round 4. Berry - Jiganchine (1/2:1/2)
After 10. e4 Bh7
Jonathan's move order in the opening allowed me to get the bishop to f5, so not being to happy about his position, he played 11. cxd5 and offered a draw. I accepted since getting a bit more rest before the evening game seemed like a good thing.
Round 5. Jiganchine - Wu (0:1)
The most important event in this game happened outside the board - the clock was setup "with delay" instead of "with increment", so in a complex endgame I made several crucial decisions in a bit of a panic, as my time appeared to be running away quite fast. That was of course my own fault - I should have paid more attention to how time was getting incremented before it got too late.
After 33... Nb6
34. Kf3 was still enough to keep the game balanced. Instead I overlooked the fact that Black can play ... f3 himself. Several moves later I was hopelessly tied up:
34. R5a3?! f3+! 35. Kd3 Rxa3 36. bxa3?! Re8 Now even if there is a draw, I played a few more "natural" moves and lost.
Round 6. Pechisker - Jiganchine (1:0)
Apparently 14... Nxe5 15. Bxe5 Bf5+ 16. e4 Rxe5 was winning quite easily. White cannot take on e5 or on f5 because then a piece on either d2 or e2 falls with grave consequences. I was already very short on time, so I simplified into what turned out to be a difficult endgame with
14...Bxd2? 15. Nxd2 Rxd2+? 16.Kxd2 Nb3+ 17. Kc3 Nxa1 18. Rxa1 and soon lost. Perhaps that was my most frustrating loss in this tournament.
Round 7. Jiganchine - McLaren (1:0)
After 24. Nd6
It may seem that the position is unclear because of Black's advanced pawns and two bishops, but actually Whites' pressure on the queenside is more important. White won the b7 pawn, and soon - the game.