MESON Chess Problem Database

Problem Display
PID: 186277 (3R2Q1/rP6/pB1bn1p1/K2kP1p1/2N3P1/1P6/2P1N2n/8 w - - 0 1)

Maleika, Gerhard

idee & form, 2014

3R2Q1/rP6/pB1bn1p1/K2kP1p1/2N3P1/1P6/2P1N2n/8

#2

11 + 8

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.bxa8Q#
      • 2.bxa8B#
  • Tries
    • 1.Qxg6?
      • threat
        • 2.Rxd6#
      • 1...Kc6
        • 2.Qe4#
      • 1...Sxd8!
    • 1.Qe8?
      • threat
        • 2.Sc3#
      • 1...Ke4
        • 2.Qc6#
      • 1...Sc5!
  • Keys
    • 1.Qf7!
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Rxd6#
      • 1...Rxb7
        • 2.Qxb7#
      • 1...Sxg4
        • 2.Qf3#
      • 1...Ra8
        • 2.bxa8Q#
        • 2.bxa8B#
      • 1...Sf1
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(h);OGATE::PXR(h)=Q
  • Tries
    • Try
      • Q(K);N_PINS(f),XP(g)
      • Threat
        • R1(J),XB(e)
      • Vars
        • K(b);N_SPINB(e),S_FLIGHT::QAB(K)
      • Refutation
        • S(f);N_SPINB(e),XR(J)
    • Try
      • Q(K);N_PINS(f)
      • Threat
        • S(B)
      • Vars
        • K(b);N_SPINB(e),S_FLIGHT::QAB(K)
      • Refutation
        • S(f);
  • Actual
    • Q(K);
    • Vars
      • K(b);N_SPINB(e),N_SPINS(f),S_FLIGHT::S(B)
      • K(b);N_SPINB(e),N_SPINS(f),S_FLIGHT::R1(J),XB(e)
      • R(h);OGATE,XP(I)::QAB(K),XR(h)
      • S(a);N_GUARD,XP(E)::QAB(K)
      • R(h);OGATE::PXR(h)=Q
      • S(a);N_GUARD::QAB(K)
      • S(a);N_GUARD::QAB(K),XS(a)
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