Wednesday, November 21, 2018

Scandinavian Defence 3...Qe5+

Richard Torning sent me this interesting Scandinavian Defence. I edited his comments and extensive notes. Rick Torning wrote: "The Scandinavian Patzer variation is playable below master strength. This game demonstrates what can happen if White plays too passively and loses a tempo by being over cautious. There is opposite sides castling and a rare yet pretty mating pattern. It is a reasonably crisp game at a bullet time control."

NN - Torning, Casual Bullet game lichess, 03.08.2018 begins 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qe5+ 4.Be2 c6 5.Nf3 Qc7 6.0-0 Bf5
So far all obvious looking moves. Black relies on the PATZER SYSTEM. 7.Bc4 This bishop has moved twice in the opening, the first time to block the check the second to attack the weak f7 square. 7...e6 Black blocks the attack and opens a line for the dark-squared bishop to develop from f8. 8.Re1 good play to put a rook on a semi-open file especially when it is shadowing the enemy king. 8...Nf6 develops a piece to control d5. 9.d3 Not bad but not as good as d4. Notice the pawn moves again on move 11. It could have been on d4 in one move instead of two moves. 9...Bd6 Developing the bishop and giving Black the option of kingside castling. The queen and bishop target h2-pawn. Nb-d7 was also playable here as it develops, and protects the Nf6 and attacks the e5 square which is where White wants to plonk a knight. 10.Bb3 This loses a tempo (move). Better options for White were Ne4, h3 or Bd2. 10...Nbd7 I could also castle kingside (0-0). 11.d4 It took two moves for this pawn to get to d4. So White has actually lost three moves so far one with this pawn and two with the Bf1-e2-c4-b3. There was no threat to the bishop on c4. 11...0-0-0 12.Bg5 pinning the Nf6. I like h3 or Qe2 better. 12...Nb6 My plan was to keep the center files closed. I wanted to trade knights on d5. Other choices for Black were Rh-e8, or h6 attacking the bishop. 13.Bxf6 Not bad but why give up a bishop that was not threatened? 13...gxf6! Black now has the semi-open g-file to attack the White king. 14.Ne4 attacking the f6 pawn and the Bd6. I wanted to keep my bishop for the kingside attack. 14...Bf4!? My interesting plan was to sacrifice a pawn for development. Allowing White to win the pawn on f6 gets rid of a kingside defender.. [also possible was 14...Bxe4 15.Rxe4 is pretty balanced] 15.Nxf6 Nd5!? This was my plan. 16.Nxd5 [if 16.Ne4! h5 17.g3 Rdg8+/= and Black has an attack] 16...cxd5! 17.c3 White's plan is to trade of the light-squared bishops [17.g3 makes more sense then tuck the king away on h1. White would have to be prepared for Black's h-pawn advance breaking up the king's protection.] 17...Rhg8 develop the piece doing the least. 18.Bc2 Consistent with the last move. A two move plan is always a good idea. White is expecting Black to trade on c2, retreat to g6 or pin the N to the Q on g4. 18...Bh3! Unexpected but the pawn cannot capture because the rook has it in an absolute pin 19.g3 still pinned by the rook but attacking the bishop 19...Bxg3! A nice forcing move. The only move now for White is fxg3. All other moves lose easily. 20.Qe2?? Blunder. It looks ok protecting the f2 pawn. [20.Ne5 Bxe5+ 21.Kh1 Bg2+ 22.Kg1 Bxh2#; 20.Re2] 20...Bxh2+! discovered check by the rook on the g-file. The bishop is protected by the queen on c7. 21.Kh1 the only move. 21...Bg2# Black wins by checkmate. 0-1

London 2.Bf4 Playbook: How to begin. London 2.Bf4 Tactics: How to win quickly.
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