3. Vincente (black) has two chances to win a piece here. How?
4. Later in the same game (vs. Devin), Vincente found a nice tactic. Where?
answers below pictures!
me, analyzing with Michael Yu
William (Michael's older brother)
me, analyzing with Isaiah (photo by Haby Diallo - I love her composition choice!)
1. Patryck can play 1... Nxe4, which wins a pawn because 2. dxe4 loess the queen to 2... Bxf2 3. Kxf2 Qxd1
2. Isaiah wished he had tried 1... Bxf2, which wins a pawn and the exchange if white plays 2. Kh1, but wins back the queen and equalizes in case of 2. Kxf2 Ng4+!
3. Either 1... Nxf3+ or 1... Nxd3+ wins the Bf4.
4. I found this funny: 1..Ng3 forks the rooks.
5. Black really wants to play c6-c5 and Bc6 to activate both bishops. White should try to stop this freeing advance and also to trade the dark-squared bishops to reach a good knight vs. bad bishop ending. The right move is 1. Nb3, with the idea of 2. Bc5, exchanging bishops.
6. 1... Rdxd6 threatens white's back rank, and after 2. Rxd6 Rxd6 3. Bb2 Rf6! wins the two bishops for the rook.
On #6 there:
In the line you gave (Rdxd6, RxR, etc) - that does better than "wins two bishops for the rook" - Black ends up ahead an exchange at the end of that and should win.
White's RxR is a mistake though - the correct move is Bd4!
1 ... Rdxd6
2. Bd4 Qxd4 (Rxd4 loses to Re1!)
3. Bd5+ Qf6
4. Bxc6 Rxd1+
5. Qxd1 Qxc6 =
The piece-geometry during that sequence is amusing - the White pieces are all in perfect positions to protect each other!
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