Lezione 3 Patterns

1 Basics

When a piece is attacked and it cannot move without exposing a piece behind it to attack, the first piece is pinned to the piece behind it.

Remeber that it is legal to move the piece. Although when the piece is pinned to the King, the pinned piece can move only along the line of attack.

To remove the pin (or "break" the pin), there are four basic ways:

1.1 Capture the pinning piece

FEN = 6k1/6p1/p4Q1p/1p1P1b2/8/1P4RP/PBr3PK/4q3 w - - 0 1

The g-pawn cannot capture the Queen on f6, as it is pinned by the Rook on g3.
Black to move. The answer is on the next page.

FEN = 6k1/6p1/p4Q1p/1p1P1b2/8/1P4RP/PBr3PK/4q3 w - - 0 1

One usual way to escape is to take the pinning piece, usually involving a sacrifice. But then the pinned piece could make up for it with a capture when freed.
Another method is a double attack to the King and to the pinning piece, to capture it a move later.

1. ... Queenxg3+! 2. Kingxg3 gxf6

7r/2pR1bkp/1r6/p1N2qp1/P1QP4/2P5/5PPP/4R1K1 w - - 0 1

Black to move. The answer is on the next page.

7r/2pR1bkp/1r6/p1N2qp1/P1QP4/2P5/5PPP/4R1K1 w - - 0 1

1. ... Queenxd7! 2. Knightxd7 Bishopxc4

1.2Attack the pinning piece

FEN = rn1qkbnr/ppp2ppp/3p4/4p3/4P1b1/3P1N2/PPP2PPP/RNBQKB1R w KQkq - 0 1

1. h3 putting the question to the pinning piece, but weakening the castle. The Bishop could trade the Knight, or move to e6 or move to h5 maintaining the pin.

White could try another way to break the pin, or attack again with g4, weakening more the castle. DON'T YOU DARE
See what it can happen to you:
1. e4 e5 2. Knightf3 Knightc6 3. Bishopb5 Knightf6 4. Knightc3 a6 5. Bishopxc6 dxc6 6. O-O Bishopg4 7. h3 Bishoph5 8. g4 Knightxg4 9. hxg4 Bishopxg4 10. Kingg2 Queenf6 11. d3 h5 12. Rookh1 h4 13. Rookh3 g5 14. Queenh1 Rookg8 15. Knighte1 Bishopxh3+ 16. Queenxh3 g4 17. Queenh1 h3+ 18. Kingg3 Bishopc5 19. Bishope3 Rookh8 20. Knightd1 Bishopxe3 21. fxe3 Queenh4+ 22. Kingh2 g3+ 23. Kingg1 O-O-O 24. Queenf3 Rookdg8 25. Queenf5+ Kingb8 26. Kingf1 h2 27. Kinge2 h1=Queen 28. Kingd2 Queen4h2+ 29. Kingc3 Queenxe1+ 30. Kingb3 g2 31. Queenxf7 g1=Queen 32. Queenc4 Queengg2 33. d4 exd4 34. Rookb1 Queenxe4 35. a4 b5 36. axb5 cxb5 37. Knightc3 Queenexc2+ 38. Kinga3 bxc4 39. b3 Queena2+ 40. Kingb4 Queenxc3+ 41. Kingc5 Queend6# 0-1
F Leveille 2360 vs. G Sagalchik 2515, Montreal, 1995.

This game can be seen here: attack http://scacchi.vecchilibri.eu/partite/attack.html .

1.3 Interpose

C50 Hungarian defence and Giuoco pianissimo
FEN = r2qkbnr/ppp2ppp/2np4/4p3/2B1P1b1/5N2/PPPP1PPP/RNBQ1RK1 w kq - 0 5

1. Bishope2 while not always the best move available, seems to almost never be a bad move.

1.4 Get out of the way

C62 Ruy Lopez Steiniz Defence
FEN = rn1qkbnr/ppp2ppp/3p4/4p3/4P1b1/3P1N2/PPP2PPP/RNBQKB1R w KQkq - 0 1

Simply moving the Queen out of the way simply results in capture and double pawns, not a good idea.Therefore, before moving the Queen, protect the Knight in some way.
1. e4 e5 2. Knightf3 Knightc6 3. d4 d6 4. Bishopb5 Bishopg4 5. Queend3.

4q1k1/2p4p/1pn1p1p1/pB1pPp2/3P1P2/2P5/PP4PP/3Q2K1 w - - 0 1

Black to move, on next move White will play Qa4 to get the Knight. The answer is on the next page.

4q1k1/2p4p/1pn1p1p1/pB1pPp2/3P1P2/2P5/PP4PP/3Q2K1 w - - 0 1

1. ... Queena8! 2. Queena4 Knighte7

Black's Queen gets out of the way, in the meantime protects the pinned Knight, that no more pinned can move away on the next move.

2 Two moves protection

All the books about tactics will tell you the importance of pinning, and the way to take advantage by attacking the pinned piece withe a piece of yours of lower value.

Few will show you the technique to unpin without or with few damages.
The best way is to create a greater threat, capturing with one of your two pieces an opponent's piece, much better with check to the King at the same time.
When this is not possible in the above diagram, with the danger if you move away one of the two pieces to lose the other, what will you do? The answer is on the next page.

The Rook cannot move from the file to protect the Bishop or the Knight, but by simply losing one tempo, it can move to a square on the same file where it could be supported by the minor piece on the next move.

FEN = 3R4/1p3kpp/8/1P1b4/8/5N2/5KPP/3r4 b - - 7 31

Your move? The answer is on the next page.

FEN = 3R4/1p3kpp/8/1P1b4/8/5N2/5KPP/3r4 b - - 7 31

Bishopxf3! The Bishop captures the Knight, protecting his Rook at the same time. One piece up, as if gxf3 then Rookxd8.
From the game Lajos Asztalos vs. Bjorn Nielsen, Munich, 1936.08.21.

Potete vedere questa e qualche partita di esempio e scaricare il pgn su: Unpinning http://scacchi.vecchilibri.eu/partite/unpinning.html . More than 20 examples.

Questa lezione è tratta dall'ebook disponibile su Amazon Learn how to unpin, che illustra completamente i metodi per schiodarsi, con vantaggio. http://www.amazon.it/dp//B0741XZG33

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