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  • 8/13/2019 LaTeX - Chess Notes

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    Chess Notes

    David Kaleko

    January, 2013

    Resources used include

    The Complete Book of Chess Strategy by Silman

    chess.comvideos

    Miscellaneous youtube.comvideos

    1

    http://localhost/var/www/apps/conversion/tmp/scratch_2/chess.comhttp://localhost/var/www/apps/conversion/tmp/scratch_2/youtube.comhttp://localhost/var/www/apps/conversion/tmp/scratch_2/youtube.comhttp://localhost/var/www/apps/conversion/tmp/scratch_2/chess.com
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    Contents

    1 Openings 3

    1.1 Guioco Piano . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    1.1.1 The Main Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    1.1.2 Quiet buildup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    1.1.3 Gambit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 Four Knights Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    1.2.1 Branch 1 (the main line). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    1.2.2 Branch 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

    1.3 French Defense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

    1.3.1 Branch 1 (the main line). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

    1.3.2 Branch 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    1.4 Ruy Lopez. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    1.4.1 Branch 1 (the main line). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    1.4.2 Branch 2: Exchange variation (+fishing pole!). . . . . . . . . . . . . . . . . . . . . . . 11

    1.5 Sicilian Defense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    1.5.1 Grand Prix Attack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    1.6 Queens Gambit Declined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

    1.6.1 Resolution #1: Tartakower Defense . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

    1.6.2 Resolution #2: Capablancas Freeing Maneuver . . . . . . . . . . . . . . . . . . . . . . 18

    1.6.3 Resolution #3: Tarrasch Defense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

    2 Middlegame Strategies 21

    2.1 Castling: Same side, opposite sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    2.1.1 Castling on opposite sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    2.1.2 Castling on the same side: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    2.2 Opponents king in the center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

    2.3 Open Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

    2.4 Closed Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

    3 Mating patterns 26

    3.1 Two bishops and king . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

    3.2 Bishop, knight, and king . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

    4 Pawn Structure 31

    4.1 Doubled Pawns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

    4.2 Isolated Pawns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

    4.3 Backward Pawns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

    4.4 Outpost Squares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

    4.5 Passed Pawn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

    4.5.1 Protected Passed Pawn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    4.6 Pawn Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    4.7 Minority Attack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    4.8 Pawn Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    5 Endgame 36

    5.1 Using The King . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

    5.1.1 Opposition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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    1 Openings

    1.1 Guioco Piano

    1. e4 e5

    2. Nf3 Nc6

    3. Bc4 Bc5White places his Bishop on an active diagonal, pointing towards the vulnerable f7. Figure 1.

    Figure 1: Guioco Piano opening.

    1.1.1 The Main Line

    4. c3 White takes control of d4 and prepares d2-d4.

    Black has to actively stop this... allowing White to control the center is bad news.

    4. ...Nf6

    5. d4 exd46. cxd4 Bb4+

    7. Bd2 Bxd2+

    8. Nbxd2 d5! Black destroys Whites center before White can solidify it.

    Figure2.

    9. exd5 Nxd5

    10. Qb3 Nce7

    Figure3.

    White has three options: a quiet buildup, a gambit, and the main line.

    1.1.2 Quiet buildup4. d3, continuing with 0-0, c3, Nbd2, eventually hoping to expand in the center with d3-d4. Black builds

    up with ...Nf6, ...d6, ...0-0 (using the e5 strong-point strategy from the Ruy Lopez), and has a fine position.

    Figure4.

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    Figure 2: Guioco Piano: Main line. Black tries to dispute control of the center.

    Figure 3: Guioco Piano: Main line. Whites active pieces compensate for isolated d-pawn.

    Figure 4: Guioco Piano: quiet buildup by White.

    1.1.3 Gambit

    4. b4!? is known as theEvans Gambit. White sacs a pawn to gain time and get his pieces out rapidly. After

    4. ...Bxb4, 5.c3 followed by d4 and often Qb3. Figure5.

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    Figure 5: Guioco Piano: Evans gambit.

    1.2 Four Knights Opening

    1. e4 e5

    2. Nf3 Nc63. Nc3 Nf6

    4. Bb5

    Figure6.

    Figure 6: Four Knights main line.

    1.2.1 Branch 1 (the main line)

    4. ...Bb45. 0-0 0-0

    6. d3 d6

    7. Bg5 Bxc3 (capture towards the center)

    8. bxc3

    Figure7.

    White has two bishops and an unpleasant pin on Black. If Black bumps the bishop away from the king-

    side with 8. ...h6, run away to h4, then g3. Its worth messing up Blacks kingside pawn structure.

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    Figure 7: Four Knights symmetrical branch.

    Tips for Black:

    The best way to break the pin on your queen is NOT bumping the bishop away with ...h6. First, movethe queen up one diagonally with ...Qe7 (still pinned), now you pivot your other night around to attack

    the pinning bishop with ...Nd8 then ...Ne6.

    Keep the center blocked! Bishops do well in open centers, knights do well in closed ones. Guard the

    e5 pawn with your life. DO NOT exchange if White pushes d4.

    1.2.2 Branch 2

    4. ...Nd4!? Intending to drop a pawn in exchange for development and active pieces.

    5. Ba4 Bc5 Retreat the attacked bishop.

    6. Nxe5 0-0 Grab the free pawn.

    Figure8.

    Figure 8: Rubinsteins variation with a shap ...Nd4!? move.

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    1.3 French Defense

    1. e4 e6

    2. d4 d5

    3. Nc3

    Figure9.

    Figure 9: French Defense start.

    1.3.1 Branch 1 (the main line)

    3. ...Bb4

    4. e5 Pin drops defender on pawn... best move is to advance it. Keep Blacks c-bishop on lockdown!

    Figure10.

    Note the closed center. Closed centers usually call for play on the wings. Blacks pawns point

    towards queenside, attacking there. White attack towards kingside.

    Figure 10: French Defense main line.

    4. ...c5Black takes a stab at center.

    5. a3 Bxc3 Bump the bishop away, exchange, even though knights beat bishops in closed centers.

    6. bxc3 Ne7 Sustain the pawn chain... e5 pawn is important. Black prepares to castle.

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    Figure11.

    Figure 11: Black attacking queenside + Whites center. White attacking kingside, with maybe Qg4 next.

    1.3.2 Branch 2

    3. ...Nf6 Dont push your e-pawn up yet to bump the knight away, as its retreat to d7 followed by the other

    knights development to c6 puts pressure on both of whites central pawns. Its ok to push the pawn if you

    can trade off Blacks bishop, which could potentially attack your central pawns on d4 and e5.

    4. Bg5 Be7 If Black doesnt unbreak the pin with ...Be7, push your pawn and kill the knight!

    Figure12.

    Figure 12: If Black doesnt break the pin, push the pawn and kill the knight!

    5. e5 Nfd7 Now push the pawn, knight retreats... trade bishops.

    6. Bxe7 Qxe7

    7. Nb5 Nb6Advance your knight into enemy territory. Blacks Nb6 is to let the queen defend the Nc7 fork.

    Figure13.

    Play might continue:

    8. c3 a6 White solidifies pawn chain, Black bumps knight away, keeping defense of d6, a wicked outpost for

    Whites knight.

    9. Na3

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    And Black can reply with ...c5 to take a stab at Whites center (most popular move), ...Bd7 to continue

    developing, ...f6 to strike at Whites center, ...0-0, etc.

    Figure 13: French transitioning to middle game. White to move.

    Tips for White:

    One of Blacks main problems is that his queenside bishop is trapped in by that pawn. Do NOT

    exchange with exd5 exd5 because this frees that bishop up. Keep him trapped!

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    1.4 Ruy Lopez

    1. e4 e5

    2. Nf3 Nc6

    3. Bb5

    Figure14.

    Figure 14: Start of Ruy Lopez opening. Shown: possible ways Black can defend e5.

    White looks to keep pressure on c6, which in turn puts pressure on the e5 pawn, only defended by the

    knight. Eventually, white hopes to build up his center and win that e5 pawn. He also wants to castle quickly

    and get his king to safety.

    Tips for Black:

    Hold on to the e5 pawn to keep control of the center. d4 along with castle + Rfe8, and possibly

    Ng8-f6-d7 and Bf8-e7-f6.

    Only take exd4 if you dont give up too much central control.

    Most respected defense is the Closed Defense, bumping the bishop away.

    3. ...a6

    1.4.1 Branch 1 (the main line)

    4. Ba4 Nf6 Ruy Lopez is all about keeping the tension!

    5. O-O Be7 Continuing to develop. If Black takes ...Nxe4 after you castle, play Re1. If he defends with

    a pawn, bump the Knight with d3 and you win the pawn back. If he runs to ...Nc5 attacking your spanish

    bishop, you have to trade it for his c6 knight before winning back the pawn.

    6. Re1 b5 White supports his pawn, renewing the threat of winning the e5 pawn (Bxc6 dxc6, Nxe5). So,

    black cant castle here! Bump the bishop away first, if you havent already.

    7. Bb3 O-O (Figure 15)

    8. c3! d6 White should use pawns to control the center. This also makes a flight square for Whites super-

    important white (spanish) bishop.

    9. h3 Na5 d4 is possible for White, but it al lows the annoying ...Bg4 pin, challening Whites center. Black

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    Figure 15: Black has supported his center sufficiently so White cant attack it directly. More development

    moves follow.

    tries to get rid of the powerful spanish bishop.

    10. Bc2 c5 Making use of the flight square. Black tries to get some center control.

    11. d4 Qc7 d3 is also ok. d4 provokes an exchange in the center (...cxd4, cxd4 exd4, Nxd4) leaving Black

    with isolated d6 pawn. Dont exchange if youre Black!

    At this point, White wants to bring out his pieces and get them on the kingside. Black wants to play

    on the queenside because he has more space there. Middlegame, here we come. Figure 16.

    Figure 16: Ruy Lopez mainline (no exchange) transitioning to middlegame.

    1.4.2 Branch 2: Exchange variation (+fishing pole!)

    Starting from Figure14 and ...a6:

    4. Bxc6dxc6 Black needs to take back with d-pawn, to open up his bishop towards the center. This is

    contrary to the capture towards the center idea.

    Note, if white takes the hanging pawn on e5, black responds with 4. ...Qg5!, forking the knight and

    the vulnerable g2 pawn.

    5. 0-0 Bg4 Get castled quickly, then start taking advantage of the broken-ish black pawn structure.

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    Other possibilities to defend the e5 pawn are are ...Bd6, which white responds with d4, opening up the

    center and lines of attack. Also possible is ...f6, which responds with d3. Makes kind of a complex position.

    With the text move, Black pins the knight. If white tries to bump the bishop away with the h-pawn:

    Black shouldnt retreat because after bumping it further, white will end up taking the e5 pawn with

    his knight. If ...Bxe4, Re1 will end up being bad for Black since his king isnt castled.

    Black shouldnt exchange, because having two bishops is his only compensation for the doubled pawns.

    What else is there?

    5. h3 h5! Support the bishop! Its your fishing bait.

    If White takes hxg4, hxg4 youve set up a fishing pole attack. Bring Qh4 and own that open file.

    Figure17.

    Figure 17: Fishing pole variation for black in exchange Ruy Lopez. hxg4 hxg4, if the knight moves, ...Qh4

    and mate follows soon.

    Now it gets interesting. If White recognizes the fishing pole, he can play

    5. d3 Qf6 White frees a spot for his b-knight to defend his pinned knight. Black increases his pressure.

    hxg6 still doesnt work... can always get the queen to the opened h-file.

    6. Nd2 Ne7Black has just enough time to prepare the rest of his pieces.

    7. Re1 Ng6

    Figure18.

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    Figure 18: Further along with the exchange, fishing-pole variation. If White tries to open it up with d4, dont

    take back! Use that time to develop your bishop to d6, pointing more attackers towards the kingside.

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    1.5 Sicilian Defense

    1. e4 c5

    White stakes a claim at the center, and Black prevents d4 by preparing to capture Whites central pawn

    with a flank pawn, if White pushes d4. Also Black would have an open c-file, which is very useful for a rook.

    1.5.1 Grand Prix Attack

    The main idea is that White tries to own the kingside and agressively attack. Hell develop fast, and get

    the queen to the kingside with Qe1 (over one) then Qg3 or Qh4. Then hell thrust at the center with e5 or f5.

    2. Nc3 Nc6

    White largely abandons the hope of d4 by building an attack on the kingside. Nc3 solidifies Whites control

    of the d5 square. Black can also play 2. ...d6 here, in which case White might choose the 5. Bb5 line instead.

    3. f4 g6

    4. Nf3 Bg7These are the usual developing moves for Black. Black owns d4 and wants to drop a knight there.

    Figure 19. White immediately gains space on the kingside where he plans to attack, gets his f-pawn in

    front of his king knight, and starts an agressive checkmating attack. Use this extra space and rapid devel-

    opment to get at Blacks king as quickly as possible!

    Figure 19: The beginning of the Grand Prix attack for White, in the Sicilian defense. Its possible Black has

    a pawn on d6 instead of his knight on c6 at this point.

    5. Bc4 line5. Bb5 is the theoretically better line, but Bc4 is generally more exciting because its eventual pin of the f7

    pawn to Blacks king can be super useful in an all-out kingside attack. Key moves in this line for White

    are Qe1, f5, Qh4, Bh6, and Ng5. You might have to sac the f-pawn to open things up. Remember, its an

    attack!

    5. Bc4 (...Nc6 or ...d6)Attacking the weak f7 pawn.

    6. 0-0 e6 Black tries to block out Whites c4 bishop.

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    7. d3 Ne7

    8. Qe1

    This is an important move for White! Queen wants to get to h4. On e8, the queen x-rays Blacks king,

    preventing Blacks d5 break (...d5, exd5 exd5 and Blacks knight on e7 is pinned).

    8. ...0-09. f5

    This is the move you need to remember in the Grand Prix for White. Figure20. White might lose that

    f-pawn but its worth it.

    If Black takes with his e-pawn, that opens Whites bishop back to attack f7 which is keeping that pawn

    pinned!. White continues the plan with Qh4, followed by Bh6 to offer an exchange of Blacks important

    fianchettod defending bishop, followed by Ng5, and it will be impossible for Black to defend the f7

    and h7 pawns.

    In general, keep an eye out for pins, there are lots in this line.

    Its also possible to bring Whites rook up and over to the h-file.

    Figure 20: Grand Prix Bb4 mainline. White has just played f5 and isnt afraid of saccing the pawn.

    5. Bb5 line

    5. Bb5 For White, Bc4 is OK too, but ...e6, ...Ne7, then ...d5 is a good refutation for Black. Also ...a6 and

    ...b5 will be painful for Whites bishop on c4.

    Whites plan with Bb5 is to exchange off the bishop right away and get an attack rolling kingside. Blacks

    best bet is to avoid the exchange. If Black doesnt run with the knight: 6. Bxc6 bxc6, 7. e5 blocks off

    Blacks dark squared bishop and owns the d6 and f6 dark squares in Blacks territory. This kills some ofWhites attacking chances but Blacks doubled c-pawns are weak (especially if Black pushes his d-pawn and

    Whites e5 pawn captures it, leaving Black with doubled isolatedpawns).

    5. ...Nd4Black avoids the immediate exchange.

    6. 0-0 Nxb5

    7. Nxb5 d5

    Figure21.

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    Figure 21: Mainline Grand Prix attack. Black has the bishop pair, White should keep things closed with d5.

    White is ready to play d4 and play a slow, positional game.

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    1.6 Queens Gambit Declined

    1. d4 d5

    2. c4 e6

    White places pressure on d5, and prepares to open the c-file with an eventual cxd5. Figure 22.

    Figure 22: Start of the Queens Gambit Declined. Arrows show how Black plans to harmoniously develop,

    including castling.

    Problems for Black:

    Blocked light-squared Bishop.

    Lack of queenside space.

    1.6.1 Resolution #1: Tartakower Defense

    3. Nc3 Nf6

    4. Bg5 Increasing the pressure against d5. Figure23.

    Figure 23: Start of Tartakower Defense for Black in QGD.

    4. ...Be7

    5. e3 0-0 Black completes the harmonious development.

    6. Nf3 h6

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    7. Bh4 b6

    Figure24.

    Figure 24: Tartakower Defense for Black in QGD. Black will alleviate his spacial cramps by fianchettoing,

    Nbd7, then breaking everything open with ...c5.

    1.6.2 Resolution #2: Capablancas Freeing Maneuver

    After starting as in Tartakower, instead of Black bumping the bishop away with 6. ...h6, he plays

    6. ...Nbd7

    7. Rc1 c6

    8. Bd3 Here, Black is cramped. What do cramped players do? Exchange! Figure25.

    Figure 25: Start of Capablancas Freeing Maneuver in QGD. Black is cramped, so he exchanges. EVERY-

    THING.

    8. ...dxc4

    9. Bxc4 Nd5

    Figure26.

    10. Bxe7 Qxe7

    11. 0-0 Nxc3

    12. Rxc3 e5

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    Figure 26: Black is cramped, so he exchanges. EVERYTHING.

    13. dxe5 Nxe5

    14. Nxe5 Qxe5

    Figure27.

    Figure 27: Final configuration after Black exchanges everything in QGD CFM. Black now has more space.

    1.6.3 Resolution #3: Tarrasch Defense

    After starting as in Figure22, Black immediately opens things up with ...c5.

    3. Nc3 c5

    4. cxd5 exd5

    5. Nf3

    Black ends up with an isolated pawn after white plays dxc5, but is compensated with active pieces, easydevelopment, no cramping problems like in other QGD lines. For Black, isolated pawn strategies(Section

    4.2)apply here! Figure28.

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    Figure 28: QGD: Tarrasch Defense. The only correct way to play QGD -Tarrasch. White should fianchetto

    to put pressure on Blacks soon-isolated d-pawn.

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    2 Middlegame Strategies

    2.1 Castling: Same side, opposite sides

    2.1.1 Castling on opposite sides

    This usually signals the start of an all-out attack by both sides.

    Both sides generally start attacks with pawns. Push pawns to open files and gain space for rooks.

    The initiative becomes very important here; the sacrifice of a pawn or two to place the opponent on

    the defensive is a no-brainer for the experienced master.

    Figures29(a)and 29(b).

    2.1.2 Castling on the same side:

    Pushing pawns on the castled side would weaken your own king.

    So, both sides generally start attacks with pieces. Is the center wide open or in a state of flux? Play in the center, not on the wings.

    Is the center closed, or under your control? A pawn-storm might be OK, even with pawns in front of

    your king. Closed center means less worrying about your king safety.

    Figures30(a)and 30(b).

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    (a) White opens kingside files with h5

    (since his king is on the queenside).

    Black opens queenside files with b5.

    (b) Black wants to play b4 (offer the

    pawn to open the a-file). White wants

    to play 1. g6 hxg6, 2.h5, offering thosepawns to open kingside files.

    Figure 29: Opposite sides castling.

    (a) Same side castling, center is in astate of flux: both sides should play in

    the center, not on the wings.

    (b) Same side castling, center is closed.1.g4 is an acceptable move for White.

    Figure 30: Same side castling.

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    (a) Black begs to be spanked Push

    f5 to rip open the center. 1. f5! exf5,

    2. exf5 0-0, 3. Bg5

    (b) Blacks king is trapped in the center

    after 1. Qe2

    Figure 31:

    2.2 Opponents king in the centerYoure castled, and your opponents king is in the center? RED FLAG! Rip the position open, and

    attack. Its possible the center is completely closed, in which case the enemy king is relatively safe. Leaving

    your king in the middle is a suicidal act in OPEN positions.

    Rules:

    1. Get your king castled as quickly as possible.

    2. If the opponent has left his king in the center, try to start an immediate attack.

    3. If you can stop the opponent from castling, do it.

    Figures31a and31b.

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    2.3 Open Positions

    Occur when the center is not blocked by pawns, so the files and diagonals are open.

    Rules:

    1. Pieces are key, pawns are secondary.

    2. Direct play towards the (open) center.

    3. Every tempo is key, dont fall behind in development.

    4. Castle ASAP!

    Figure32.

    Figure 32: Open center. Black has an extra pawn but White has a lead in development.

    Starting from Figure32,

    1. Ng5 Ne5 Attacking vulnerable f7 square.

    Also good is 1. Re1+ Be7, 2. Qe2 keeping Blacks king in the center as in Figure 31b, or 1. Qb3 win-

    ning f7.

    2. Re1 Qxd1+ Pinning the knight.

    3. Raxd1 Nfd7 Black tries to defend the pinned knight

    4. Nxf7 Rook will have to move, then you win the pinned knight. Game over.

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    2.4 Closed Positions

    Occur when the center is filled with pawns that are locked together, which block files and diagonals, limiting

    the activity of most of the pieces.

    Rules:

    1. Play towards the wings, since the center is blocked off.

    2. Most attacks initiated bypawns. Push your wing pawns to gain space and open rook files.

    3. Play on the wing where your pawns point. This is where your space advantage is.

    4. Development and castling can be delayed.

    Figure33.

    Figure 33: Closed position. Blacks pawns point towards kingside, Whites towards queenside. Black wants

    ...Nd7 and ...f5 at some point to gain space and get the f8 rook involved. White wants b4 followed by c5 to

    open queenside lines.

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    3 Mating patterns

    3.1 Two bishops and king

    The principle of king and two bishops versus king is: advance your king as close as possible to your op-

    ponents, and then cut off the squares where the king wants to go. Force him into the corner as shown in

    Figure35. Use your dark squared bishop to block off the back wall.

    Dont be afraid of using lots of waiting moves where you just draw your bishop back,

    once the king is along a wall. Dont panic! And always watch out for stalemates.

    Heres what mating pattern might look like. Figures34, and35.

    Figure 34: Starting point of the two bishop mate. White to move.

    1. Be5 Kg8 Draw back with your bishop and wait. Keep the black king stuck on g8 and h8, moving back andforth.

    2. Kg6 Kh8 Get your king to the Knights square.

    3. Bc6 Kg8Waiting move with the bishop.Note here you cant move your white bishop to d5 because thats

    stalemate. You cant check with your black bishop because his king would squeeze out along the back wall

    and youd have to start over.

    4. Bd5+ Kh8

    5. Bd4#

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    Figure 35: What mate looks like. Notice the king on the knights attack square.

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    3.2 Bishop, knight, and king

    The most difficult of the checkmates (two knights isnt possible). Memorization required.

    You have to checkmate in the corner that is the same color as your bishop.

    To play defense against this mate, stay towards the middle and run to the opposite color corner.

    Assuming the opponent knows to run for the opposite color corner, heres what a mating pattern might look

    like. The black king intentionally runs to the black corner to delay mate.

    Step 1: Place your king on f6. It must be the square diagonally three in from the corner. Figure36.

    Figure 36: Bishop knight possible starting position.

    Step 2: Put your bishop on the b1-h7 diagonal. Any square. Figure 37.

    Figure 37: Start with your bishop on this diagonal.

    Step 3: Put your knight on f7 or g5, find some way to do it. Figure 38

    Step 4: After Nf7 (continuing the knight along its pattern), Bh8 cuts off the g8 square for the king and

    keeps him moving towards the mating corner. Figure 39.

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    Figure 38: Once youre in this position, you have to execute these moves. The next series of moves is forced,

    in an extremely useful pattern. Start with the knight.

    Figure 39: Bh8 is key to cut off the g8 square.

    Step 5: Move the knight down its pattern, keeping the king moving west. Figure40a.

    Note, if the king moves back go f8, you just continue the knight pattern, Nd7+ e8, following with your

    king to e6 forces his king westward. Eventually, the king is going to get to leave the back wall and almost

    escape. Create a neat box with your knight and bishop, forcing the king back towards the corner. Figure 40b.

    Now, work your way into the corner, and end up with the final mating pattern, Figure 41.

    1. ...Kc7

    2. Ke7 Kc6 This part isnt forced, there are lots of ways to get to final mating position.

    3. Bc4 Kc7 Maintaining the box.4. Bb5 Kb7 Your bishop now blocks off e8 so the king cant run back east.

    5. Kd6 Kc8

    6. Nc5 Kd8 Continuing to follow the king.

    7. Nb7 Kc8

    8. Kc6 Kb8 Now its just a matter of getting the king into the corner and delivering mate.

    9. Kb6 Kc8

    10. Bc6 Kb8

    11. Bd7 Ka8 Waiting a move to get the king into the corner, cutting off c7 eastward escape. Now its just a

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    (a) Keep the king moving west. (b) Memorize this shape!

    Figure 40:

    matter of reorganizing your pieces.

    12. Kc5 Kb8

    13. Na6+ Kh8

    14. Bc6#

    Figure 41: What mate looks like with a bishop and a knight.

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    4 Pawn Structure

    4.1 Doubled Pawns

    Two pawns on top of each other. They arent the end of the world, but they can be bad.

    They are weak because they cant defend each other, and they move forward in each others way.

    Theyre good if they are central and cover important squares.

    They always open a file which you should try to control.

    In general, the lead pawn is a target of attack.

    Example: Ruy Lopez exchange variation (Section1.4). After 4. Bxd6 dxc6, and doubled pawns occur on

    the c-file. Compensation here is the bishop pair for black, and Whites wasted time doubling the pawns.

    If the doubled pawns are isolated pawns (Section 4.2, they are much weaker than just doubled pawns.

    Doubled pawns with defense arent the worst.

    Sometimes the best way to play against doubled pawns is not to attack them directly (unless they are

    isolated), but to play with a pawn majority on the other side of the board, like in the Ruy Lopez exchange.

    Tripled Pawns

    Tripled pawns have no redeeming value in themselves, and, if you dont have some form of compensation

    for them (an attack, a material advantage, extremely active pieces, etc.), your game will almost certainly

    take a downward turn.

    4.2 Isolated Pawns

    Isolated pawn is one that has no friendly pawn on adjacent files to protect it. These are usually bad, but

    not always:

    Isolated pawns might be ok:

    1. An isolated pawn might be an unstoppable passer, running to promote. Figure42(a).

    2. It might be centrally placed and might guard important central squares, possible outposts for knights.

    Figure42(b).

    3. You might be able to use it as a battering ram the enemys superior structure. Figure42(c).

    Even if the isolated pawn isnt going anywhere, try to put your rooks on its adjacent files.

    If your opponent has an isolated pawn,

    Try to control the square in front of it. Putting a piece there is good because it cant be bumpedout by pawns.

    Trade off all minor pieces, put a rook in front of the pawn to immobilize it, get the queen behind it

    Figure43. Common situation: isolated queen-pawn.

    If you can get two isolated pawns next to each other (isolated pawn couple), it is best to keep them on

    the same rank. If they get stuck separated they become much weaker (called hanging pawns), and can be

    worse than single isolated pawns. NOTE TO SELF: Take notes on this section later.

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    (a) Isolated pawn: valuable passer. (b) Isolated pawn: controlling key c5

    and e5 squares.

    (c) Isolated pawn: Blacks a-pawn

    plays ...a4 and shatters Whites pawns.

    Figure 42: Isolated pawns can be good.

    Figure 43: Common isolated pawn scenario (ignoring the kings). If given the chance, whites nearby pawns

    should capture towards it.

    When you have hanging pawns or isolated pawns, it is in your best interest to keep the

    minor pieces on the board. Vice versa,

    If your opponent has hanging or isolated pawns, it is in your best interest to trade off

    the minor pieces and win that pawn with rooks and queen.

    4.3 Backward Pawns

    These are positional weaknesses come about frequently in the middlegame. A backward pawn is one that

    has fallen behind its brother pawns and cant be guarded by them, or safely move side-by-side with them.

    Backwards pawns can be bad, or good:

    1. If the backward pawn is on an open file, it is very weak.

    2. If the backward pawn isnt on an open file and is well defended, it is pretty strong.

    3. If the square directly in front of it is adequately protected by pieces, it is pretty strong.

    4. If the pawn is serving a good purpose being where it is, its ok. Example: guarding a pawn that blocks

    in an enemy bishop.

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    Figure44.

    Figure 44: Blacks d-pawn is backwards. It serves a purpose of supporting the e5 pawn to block in Whites

    bishop, so Black controls d4. Here, the d-pawn isnt weak, and is even able to safely advance to d5.

    4.4 Outpost Squares

    Figure 45: Whites knight takes advantage of an outpost square created by the backward Black pawn. Note,

    here Black also has an outpost square on c5.

    An outpost square will never again be able to be attacked by pawns. The effectiveness is most obvious

    when a Knight fills the outpost square, but other pieces can also do well on outpost squares. See Figure45.

    4.5 Passed Pawn

    A passed pawn is one that has no enemy pawns directly in front of it, or in either adjacent file to attack it.

    To decide if a passed pawn is useful or not, ask yourself two questions:

    1. If both sides have play elsewhere independent of the passed pawn, it can be useful as an endgame

    insurance.

    2. Can the passed pawn be firmly blockaded? If so then it can block files and diagonals, which is bad for

    you.

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    4.5.1 Protected Passed Pawn

    A protected passed pawn (PPP) is one that is protected by another pawn. The strength of this position is

    that an enemy king is completely crippled by a PPP. A PPP configuration is probably the biggest

    advantage you can have in a king-pawn endgame. Figure46.

    Figure 46: Protected Passed Pawns. The Black king cant run too far east/west, because the pawn will

    promote, and the king will never be able to get rid of the pawns. If he tries to sneak in and kill the backwards

    pawn, the PPP on d5 will promote.

    4.6 Pawn Chains

    Pawn chains are three or more pawns diagonally linked together. They are strong, and if you have them,

    its important to make sure you can keep them together, and that your pieces should be attacking the side

    where the chain is pointing. The most important pawn is the one that is second-from-the-front. Figure47.

    Develop your pieces in the direction the pawn chain is pointing.

    Figure 47: A pawn chain in the French Defense, advance variation.

    4.7 Minority Attack

    Minority can give good attacking chances. See Figure48. Here, if Whites pawn gets to b5,

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    Black allows White to take on c6, he is left with a backwards pawn and a good outpost for Whites

    knight on c5.

    Black takes on b5, it isolates his d5 pawn and gives White attacking chances on the queenside.

    Black pushes ...c5, after which White takes dxc5 and Blacks d5 pawn is again isolated.

    Figure 48: Black has a 3-on-2 pawn advantage on the queenside. White can initiate a good minority attack

    with 1. b4 followed by 2. b5!

    4.8 Pawn Tension

    Figure49. Here, White doesnt want to take 1. dxc5 since it would allow 1. ...bxc5, opening the b-file for

    Blacks rook, and trading an important/active central pawn for Blacks passive b-pawn. Theres no rush for

    White to capture on c5 anyway, he might as well explore other options first.

    Black doesnt want to take on 1. ...cxd4, because it would open up the e-file for White after 2.exd4,and it would exchange a space-gaining central c-pawn for Whites passive e3 pawn.

    Only trade pawns if you gain something by doing so!

    Figure 49: An example of pawn tension. White doesnt want 1. dxc5 and Black doesnt want to take 1.

    ...cxd4.

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    (a) Distant opposition. White to move

    has the opposition, as there are an even

    number of squares between the Kings.

    (b) Diagonal opposition. White to

    move has opposition.

    Figure 50: Opposition.

    5 Endgame5.1 Using The King

    5.1.1 Opposition

    Opposition is something you want to have. Whoever is to move when there is an even number of squares

    between the Kings has the opposition. You want to have an even number of squares between the Kings when

    it is your turn to move. This applies to files/ranks, and diagonals (Figures50(a)and 50(b)).