30 Mar '10 18:44>2 edits
Thanks for all the great responses! They inspire me to do things like this again. π
After posting yesterday, I had some second thoughts about two variations in my head. I decided to look at the two positions one more time (deeper).
Here is the first one:
My analysis continued with 13. ... Ne5! 14.Qc2 Nxf3+ 15.exf3 Qh4+ (and Be7)
I didn't cover 14.cxd6, so I'll give that here just for thoroughness.
14.cxd6 Nxf3+ is a big win for black.
If 15.Kd1 Bxa4+ ... White is in check and can't capture black's queen!
If 15.Kf2 or 15.exf3 ... Black plays Qh4+ and captures white queen on the next move.
That's just a nice variation I left out.
Here is the real position that needed looking at deeper:
Here I said that white's 20.Qd5! covers the rook on h1 and removes the pesky queen from f3.
Actually, black can keep it complicated with 20. ... e4.
White is won, but the line that follows is pure chaos.
21.Rg1 Bxh2 22.Be2 Qf6 23.Qd7+! (This takes the king off d8 so that it can't support a later Rd8 ... in the event of Kd1 by white.) Kf8 24.Rf1 (keeping an eye out for mates on f7!) Qc3+ 25.Kd1 (the point of 23.Qd7+ ... no Rd8 from black) f6 (to not have to keep a constant defense of f7) 26.Rb1 ... and White consolidates!
This is a tricky computer line, but there is some rationality to the moves.
After posting yesterday, I had some second thoughts about two variations in my head. I decided to look at the two positions one more time (deeper).
Here is the first one:
My analysis continued with 13. ... Ne5! 14.Qc2 Nxf3+ 15.exf3 Qh4+ (and Be7)
I didn't cover 14.cxd6, so I'll give that here just for thoroughness.
14.cxd6 Nxf3+ is a big win for black.
If 15.Kd1 Bxa4+ ... White is in check and can't capture black's queen!
If 15.Kf2 or 15.exf3 ... Black plays Qh4+ and captures white queen on the next move.
That's just a nice variation I left out.
Here is the real position that needed looking at deeper:
Here I said that white's 20.Qd5! covers the rook on h1 and removes the pesky queen from f3.
Actually, black can keep it complicated with 20. ... e4.
White is won, but the line that follows is pure chaos.
21.Rg1 Bxh2 22.Be2 Qf6 23.Qd7+! (This takes the king off d8 so that it can't support a later Rd8 ... in the event of Kd1 by white.) Kf8 24.Rf1 (keeping an eye out for mates on f7!) Qc3+ 25.Kd1 (the point of 23.Qd7+ ... no Rd8 from black) f6 (to not have to keep a constant defense of f7) 26.Rb1 ... and White consolidates!
This is a tricky computer line, but there is some rationality to the moves.