Keres Memorial 2009

I am planning to play in the Paul Keres Memorial 2009 Open chess tournament this coming weekend. It is a nice annual tournament ran by BC chess enthusiasts to commemorate the fact that Paul Keres’ last tournament win was held in Vancouver in 1975. Even though my last year’s preparation for the tournament was far from perfect, this year it was even worse as in the last couple of months I barely looked at chess. I hope to write a mini-report similar to the one I did last year, but for now I decided to please myself with the collection of little combinations from my own games that I played over the years in the Keres Memorial tournament. In a couple of the diagrams I don't give the solution so you can try to figure out the answer (not very difficult).

Fullbrook – Jiganchine, 2000

Black to move – full details here - http://roman-chess.blogspot.com/2007/09/game-against-nigel-fullbrook.html

Jiganchine – Huber, 2001
  White to move. 26. Ng4 (with a double attack on h6 and e6) was enough for White to break through.

Jiganchine – Maheux, 2002

White to move. White gives forced checkmate, I let you figure out this one yourself.

Jiganchine – Erichsen, 2007

  White to move. 28. Nxh6 gave White a winning advantage, which I later managed to spoil and the game was drawn.

Jiganchine – Poitras, 2008

White to move. 28. g4 traps the queen – Black has to sacrifice a piece to rescue the royal lady.