Coach answer key
The King: Coach Answer Key
Solutions are ordered by the neutral numbering used in the student handout.
Exercise 1
Best move: 1...O-O-O!
Short plan: Castle queenside, then improve the king with ...Kb8 and bring the rook toward c8. White’s attacking resources are concentrated on the kingside, so the opposite wing is the safer destination.
Critical line: 1...O-O-O! 2 d5 Kb8
Strategic theme: Choosing the correct castling side
Why the tempting alternative is inferior: 1...O-O? 2 h5! Rad8 3 hxg6 hxg6 4 Ne4! gives White a dangerous attack against the exposed king.
Difficulty: 1 / 5
Source mapping: Original position 70; N. Pushkov - V. Savon; Orel 1995; exercise printed/PDF page 312/313; solution printed/PDF page 386/387; board crop pdf_p0313_book_p0312_b04_board.png; context crop pdf_p0313_book_p0312_b04_context.png; manifest exercises/crop_manifest.json.
Exercise 2
Best move: 1...g6!
Short plan: Prepare ...Bg7 and only then ...O-O. Black first builds a reliable kingside shelter and develops with tempo before deciding the final king square.
Critical line: 1...g6 2 Na3 Bg7 3 fxe5 dxe5 4 Nc4 Ne4!
Strategic theme: Preparing safe castling
Why the tempting alternative is inferior: 1...O-O-O? 2 b4! Kb8 3 c4 gives White a direct pawn storm against the castled king.
Difficulty: 1 / 5
Source mapping: Original position 71; J. Bellon Lopez - D. Merino Mejuto; Spanish Championship, Gijon 1971; exercise printed/PDF page 312/313; solution printed/PDF page 386/387; board crop pdf_p0313_book_p0312_b05_board.png; context crop pdf_p0313_book_p0312_b05_context.png; manifest exercises/crop_manifest.json.
Exercise 3
Best move: 1 Ke2!
Short plan: Use the closed centre to secure the king on e2 and connect the rooks immediately. White then transfers the queen and rook toward the kingside attack without spending time on artificial castling.
Critical line: 1 Ke2! Rg7 2 Rhg1 Nd7 3 hxg6 hxg6 4 Qh1
Strategic theme: King centralization in a closed centre
Why the tempting alternative is inferior: 1 Qe2?! Nc7 2 O-O-O b5 gives Black queenside counterplay before White has completed the attack.
Difficulty: 2 / 5
Source mapping: Original position 72; Y. Averbakh - O. Panno; USSR-Argentina match, Buenos Aires 1954; exercise printed/PDF page 313/314; solution printed/PDF page 387/388; board crop pdf_p0314_book_p0313_b01_board.png; context crop pdf_p0314_book_p0313_b01_context.png; manifest exercises/crop_manifest.json.
Exercise 4
Best move: 1...Kf8!
Short plan: Move the king to f8, reinforce the central blockade, and prepare ...Kg8 under improved circumstances. The king stays clear of immediate pressure and the pieces retain flexibility.
Critical line: 1...Kf8 2 Rae1 Ne5 3 Qd1 Nfd7 4 Nf3 Nxf3+ 5 Bxf3 Qg5
Strategic theme: Manual king safety
Why the tempting alternative is inferior: 1...O-O?! 2 Rae1 leaves Black with persistent pressure against h4 and fewer useful defensive options.
Difficulty: 2 / 5
Source mapping: Original position 73; A. Planinec - V. Hort; Hastings 1974/75; exercise printed/PDF page 313/314; solution printed/PDF page 387/388; board crop pdf_p0314_book_p0313_b03_board.png; context crop pdf_p0314_book_p0313_b03_context.png; manifest exercises/crop_manifest.json.
Exercise 5
Best move: 1...Rc8!
Short plan: Exploit the semi-open c-file first. The king can remain useful in the centre and later step to e7, where it helps defend d6 while the rook is already active.
Critical line: 1...Rc8! 2 Rad1 Ke7! 3 Qb4 Qc5 4 Qxb7?! Rb8
Strategic theme: Rook activation before king commitment
Why the tempting alternative is inferior: 1...O-O-O?! 2 Rfd1 followed by Ba3 and b2-b4 leaves the rook passive on d8 and exposes the king.
Difficulty: 2 / 5
Source mapping: Original position 74; S. Lejlic - J. Hellsten; Swedish Championship, Ronneby 1998; exercise printed/PDF page 313/314; solution printed/PDF page 387/388; board crop pdf_p0314_book_p0313_b05_board.png; context crop pdf_p0314_book_p0313_b05_context.png; manifest exercises/crop_manifest.json.
Exercise 6
Best move: 1...Nd7!
Short plan: Postpone the castling decision, improve the knight toward c5, and prepare ...Bf6 and ...h5. Black waits until the pawn structure reveals the genuinely safe wing.
Critical line: 1...Nd7! 2 Qg3 Bf6 3 Qd2 h5 4 Be2 h4 5 Rh3 Nc5
Strategic theme: Delaying castling to preserve flexibility
Why the tempting alternative is inferior: 1...O-O?! 2 Bh3 gives White e4-e5 ideas and a direct attack; long castling also places the king in the path of a queenside expansion.
Difficulty: 3 / 5
Source mapping: Original position 75; M. Johansson - J. Hellsten; Malmo 1999; exercise printed/PDF page 313/314; solution printed/PDF page 387/388; board crop pdf_p0314_book_p0313_b02_board.png; context crop pdf_p0314_book_p0313_b02_context.png; manifest exercises/crop_manifest.json.
Exercise 7
Best move: 1...O-O!
Short plan: Castle into the locked kingside and reserve the queenside pawns and rook for active play. Once safe, Black can open the centre on favorable terms.
Critical line: 1...O-O! 2 Rhe1 a5 3 Bb5 Rac8 4 Rc1 d5!
Strategic theme: Castling into a closed wing
Why the tempting alternative is inferior: 1...O-O-O?! 2 Qe2 followed by Rhf1 and f4-f5 gives White the initiative against the queenside king.
Difficulty: 3 / 5
Source mapping: Original position 76; J. Polgar - L. Polugaevsky; Match, game 7, Aruba 1991; exercise printed/PDF page 313/314; solution printed/PDF page 388/389; board crop pdf_p0314_book_p0313_b04_board.png; context crop pdf_p0314_book_p0313_b04_context.png; manifest exercises/crop_manifest.json.
Exercise 8
Best move: 1...Kf7!
Short plan: Start a king march to the queenside, where the pawn structure is closed. Black neutralizes the kingside assault and later resumes active play with ...g5 and ...h5.
Critical line: 1...Kf7! 2 Rf3 Ke7 3 Nf1 Rd8 4 Rh3 Rh8 5 g4 Kd7 6 Ng3 Kb8
Strategic theme: Evacuating to the opposite flank
Why the tempting alternative is inferior: 1...h6?! is too committal: it slows the king’s escape and makes a later ...g5 advance harder to arrange.
Difficulty: 3 / 5
Source mapping: Original position 77; R. Byrne - A. Kotov; USA-USSR match, New York 1954; exercise printed/PDF page 313/314; solution printed/PDF page 388/389; board crop pdf_p0314_book_p0313_b06_board.png; context crop pdf_p0314_book_p0313_b06_context.png; manifest exercises/crop_manifest.json.
Exercise 9
Best move: 1 Qe3!
Short plan: Meet Black’s checking sequence by preparing a controlled king walk. White covers f1, creates a mating threat, and calculates an escape route through d2, c3, b4, and a5.
Critical line: 1 Qe3! Qg2 2 Qd3! Qg1+ 3 Kd2 Rf2+ 4 Kc3 Qc1+ 5 Kb4!
Strategic theme: The brave king under forcing checks
Why the tempting alternative is inferior: 1 Rf3? Rxf3 2 Qxf3 Qxe5+ 3 Kf1 only leads to a draw and misses the winning king route.
Difficulty: 4 / 5
Source mapping: Original position 80; R. Akesson - F. Bindrich; Stockholm 2007; exercise printed/PDF page 314/315; solution printed/PDF page 389/390; board crop pdf_p0315_book_p0314_b02_board.png; context crop pdf_p0315_book_p0314_b02_context.png; manifest exercises/crop_manifest.json.
Exercise 10
Best move: 1...Qc5!
Short plan: Continue with the central plan and trust the king’s calculated escape. Against Rh3, the king steps to g8 and then uses f8-e7 while Black’s pieces cover the checking squares.
Critical line: 1...Qc5! 2 Rh3 Kg8! 3 Bxf6 gxf6 4 Qxh7+ Kf8 5 Qh8+ Ke7 6 Qh5 Bd7!
Strategic theme: King activity as a defensive calculation resource
Why the tempting alternative is inferior: Declining 1...Qc5 because of 2 Rh3 is overly cautious. After 2...h6? 3 Bxh6, Black is in real danger; the accurate response is the calm 2...Kg8!.
Difficulty: 5 / 5
Source mapping: Original position 81; M. Illescas Cordoba - U. Andersson; Ubeda 1997; exercise printed/PDF page 314/315; solution printed/PDF page 389/390; board crop pdf_p0315_book_p0314_b04_board.png; context crop pdf_p0315_book_p0314_b04_context.png; manifest exercises/crop_manifest.json.