MESON Chess Problem Database

Problem Display
PID: 244642 (7K/8/2Q1N2p/4P1pk/4P1R1/3p4/3P2P1/4B3 w - - 0 1)

Giegold, Fritz Emil

Source?, 0000

7K/8/2Q1N2p/4P1pk/4P1R1/3p4/3P2P1/4B3

#2

9 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kg6
      • 2.Qe8#
  • Tries
    • 1.Kg8?
      • 1...Kg6
        • 2.Sf4#
        • 2.Sg7#
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Sf4+?
      • 1...gxf4
        • 2.Qg6#
      • 1...Kxg4!
    • 1.Bf2?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Bg3?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Rg3?
      • 1...Kh4
        • 2.Rxg5#
      • 1...Kg6
        • 2.Qe8#
      • 1...g4!
    • 1.Rf4?
      • threat
        • 2.Sg7#
        • 2.Qe8#
      • 1...Kg6
        • 2.Sg7#
        • 2.Qe8#
      • 1...g4
        • 2.Qe8#
      • 1...gxf4!
    • 1.Rh4+?
      • 1...Kg6
        • 2.Sd8#
        • 2.Qe8#
      • 1...gxh4!
    • 1.Qb5?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Qd5?
      • 1...Kg6
        • 2.Sf4#
      • 1...Kxg4!
    • 1.Qb7?
      • 1...Kg6
        • 2.Sf4#
      • 1...Kxg4!
    • 1.Qd7?
      • 1...Kg6
        • 2.Sf4#
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Qa8?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
    • 1.Qc1?
      • 1...Kxg4
        • 2.Qd1#
      • 1...Kg6!
    • 1.Qc4?
      • 1...Kg6
        • 2.Sf4#
      • 1...Kxg4!
    • 1.Qc7?
      • 1...Kg6
        • 2.Sf4#
      • 1...Kxg4!
    • 1.Qc8?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
    • 1.g3?
      • 1...Kg6
        • 2.Qe8#
      • 1...Kxg4!
  • Keys
    • 1.Qa4!
      • 1...Kxg4
        • 2.Qd1#
      • 1...Kg6
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • S(H);CHECK
      • Vars
        • P(b);XS(H)::QAB1(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • B(A);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • B(A);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • R(E);
      • Vars
        • K(c);P-FLIGHT::B(A)+R(E),XP(b)
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • P(b);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAB(G)
      • Refutation
        • P(b);XR(E)
    • Try
      • R(E);CHECK
      • Refutation
        • P(b);XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(E)::QAB(G)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::S(H)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • Q(G);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
    • Try
      • P(C);
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
      • Refutation
        • K(c);S_FLIGHT,XR(E)
  • Actual
    • Q(G);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(E)::QAB(G)
      • K(c);P_SPINP(b),S_FLIGHT::QAB(G)
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