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Problem Display

PID: 72196 (Kbnr3B/8/pp5Q/3kN1p1/b6R/qn1B4/N1R5/8 w - - 0 1)

O'Keefe, John James

Chess, 1952

Kbnr3B/8/pp5Q/3kN1p1/b6R/qn1B4/N1R5/8

#2

8 + 10

SOLUTION

COOKED
Sets
- 1...Qc1
  - 2.Sb4#
- 1...Qb2
  - 2.Sb4#
- 1...Qb4
  - 2.Sxb4#
- 1...Bc6+
  - 2.Qxc6#
- 1...Sd4
  - 2.Be4#
- 1...Sc5
  - 2.Bc4#
- 1...b5
  - 2.Qc6#
Keys
- 1.Sc3+!
  - 1...Kc5
    - 2.Rc4#
- 1.Sd7!
  - threat
    - 2.Sc3#
    - 2.Bc4#
    - 2.Be4#
  - 1...Bc6+
    - 2.Qxc6#
  - 1...Qxa2
    - 2.Bc4#
    - 2.Be4#
  - 1...Rxd7
    - 2.Be4#
  - 1...Rxh8
    - 2.Sc3#
    - 2.Bc4#
  - 1...Bxd7
    - 2.Be4#
  - 1...gxh4
    - 2.Sc3#
  - 1...Qe7
    - 2.Sc3#
    - 2.Bc4#
  - 1...Qb2
    - 2.Sb4#
    - 2.Bc4#
    - 2.Be4#
  - 1...Qb4
    - 2.Sxb4#
  - 1...Qc5
    - 2.Be4#
  - 1...Qd6
    - 2.Be4#
  - 1...Re8
    - 2.Sc3#
    - 2.Bc4#
  - 1...Bb5
    - 2.Sc3#
    - 2.Be4#
  - 1...Bf4
    - 2.Sc3#
  - 1...Be5
    - 2.Bc4#
  - 1...Bd6
    - 2.Be4#
  - 1...Sa1
    - 2.Bc4#
    - 2.Be4#
    - 2.Rd4#
  - 1...Sc1
    - 2.Bc4#
    - 2.Be4#
    - 2.Rd4#
  - 1...Sd2
    - 2.Rd4#
  - 1...Sd4
    - 2.Bc4#
    - 2.Be4#
    - 2.Rxd4#
  - 1...Sa5
    - 2.Be4#
    - 2.Rd4#
  - 1...Sc5
    - 2.Bc4#
    - 2.Rd4#
  - 1...Sd6
    - 2.Sxb6#
  - 1...g4
    - 2.Sc3#
  - 1...b5
    - 2.Sc3#
    - 2.Be4#
    - 2.Qc6#

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