MESON Chess Problem Database

Problem Display
PID: 15308 (b2k2n1/1B3p2/3K4/8/8/8/4Q3/8 w - - 0 1)

Maleika, Gerhard

3rd HM., Deutsche Schachzeitung, 1982

b2k2n1/1B3p2/3K4/8/8/8/4Q3/8

#2

3 + 4

3295 Einfuhrung in die Welt des Schachproblem 1984
3752 FIDE Album (1980-1982) 1988
2786 More Fun with Chess Miniatures 2000
136 Problem Observer 2010
56 The Problemist 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qe7#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Bxb7
        • 2.Qd7#
      • 1...Se7
        • 2.Qd7#
        • 2.Qxe7#
      • 1...Sf6
        • 2.Qc8#
        • 2.Qe7#
      • 1...fxe6!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qd7#
        • 2.Qc8#
        • 2.Qxg8#
      • 1...Ke8
        • 2.Qc8#
        • 2.Qxg8#
      • 1...Bxb7
        • 2.Qd7#
        • 2.Qxg8#
      • 1...Sf6
        • 2.Qc8#
      • 1...Sh6
        • 2.Qd7#
        • 2.Qc8#
      • 1...Se7
        • 2.Qd7#
      • 1...f5
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(d);N_GUARD::QAB1(A)
    • S(d);N_GUARD::QAB1(A),XS(d)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XB(C)::QAR1(A)
      • Refutation
        • P(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • S(d);::QAR1(A)
      • P(a);::QAR(A),XS(d)
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Developed and maintained by Brian Stephenson.
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