MESON Chess Problem Database

Problem Display
PID: 209152 (8/5K2/6p1/p2kpN2/1b2p3/8/P7/nQR5 w - - 0 1)

Giegold, Fritz Emil

Deutsche Schachblatter, 1930

8/5K2/6p1/p2kpN2/1b2p3/8/P7/nQR5

#2

5 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qb5#
      • 2.Qb7#
    • 1...Bd2
      • 2.Qb5#
      • 2.Qb7#
    • 1...Ba3
      • 2.Qb7#
    • 1...Bc3
      • 2.Qb5#
    • 1...Bc5
      • 2.Qb7#
    • 1...Bd6
      • 2.Qb7#
    • 1...Be7
      • 2.Qb7#
    • 1...Bf8
      • 2.Qb7#
    • 1...Sb3
      • 2.Qxb3#
    • 1...e3
      • 2.Qd3#
  • Tries
    • 1.Qxb4?
      • threat
        • 2.Se3#
        • 2.Se7#
        • 2.Rc5#
        • 2.Qd2#
        • 2.Qxa5#
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qb7#
      • 1...gxf5
        • 2.Qd2#
        • 2.Qc5#
      • 1...Sc2
        • 2.Se7#
        • 2.Qb5#
      • 1...Sb3
        • 2.Se3#
        • 2.Se7#
        • 2.Qd6#
        • 2.Qxb3#
        • 2.Qc4#
        • 2.Qb7#
      • 1...e3
        • 2.Sxe3#
        • 2.Se7#
        • 2.Rc5#
        • 2.Qc4#
        • 2.Qb7#
      • 1...a4
        • 2.Se3#
        • 2.Se7#
        • 2.Rc5#
        • 2.Qd2#
        • 2.Qa5#
        • 2.Qc5#
        • 2.Qd6#
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qb7#
      • 1...axb4!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qd1#
      • 1...Bxc3
        • 2.Qb5#
      • 1...Bc5
        • 2.Qb7#
      • 1...Sc2
        • 2.Qb3#
      • 1...Sb3
        • 2.Qxb3#
      • 1...e3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(b);OGATE::QAB(A)
    • B(b);OGATE::QAR2(A)
    • S(a);N_GUARD::QAB(A),XS(a)
    • P(c);N_GUARD::QAR2(A)
  • Tries
    • Try
      • Q(A);XB(b)
      • Threat
        • DUALS(10)
      • Refutation
        • P(d);XQ(A)
  • Actual
    • R(B);
    • Threat
      • QAR(A)
    • Vars
      • B(b);OGATE,XR(B)::QAR2(A)
      • B(b);OGATE::QAB(A)
      • S(a);N_GUARD::QAB(A)
      • S(a);N_GUARD::QAB(A),XS(a)
      • P(c);N_GUARD::QAR2(A)
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Developed and maintained by Brian Stephenson.
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