MESON Chess Problem Database

Problem Display
PID: 9977 (K3Q3/3p4/1pk4r/1b1p4/N4R2/N5R1/7B/8 w - - 0 1)

Rice, John Michael

Die Schwalbe, 1961

K3Q3/3p4/1pk4r/1b1p4/N4R2/N5R1/7B/8

#2

7 + 6

3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qc8#
  • Tries
    • 1.Rc3+?
      • 1...Kd6
        • 2.Sxb5#
        • 2.Rh4#
        • 2.Rf6#
      • 1...Bc4!
    • 1.Rg6+?
      • 1...Kc7
        • 2.Sxb5#
        • 2.Rc4#
        • 2.Qb8#
      • 1...Rxg6!
    • 1.Rg7?
      • threat
        • 2.Qxd7#
      • 1...Kd6
        • 2.Rf6#
      • 1...Kc7
        • 2.Rc4#
      • 1...Rd6
        • 2.Qc8#
      • 1...Rh8
        • 2.Rf6#
      • 1...Bxa4!
    • 1.Rf6+?
      • 1...Kc7
        • 2.Sxb5#
        • 2.Rc3#
        • 2.Qb8#
      • 1...Rxf6!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Qxd7#
      • 1...Kd6
        • 2.Rg6#
      • 1...Kc7
        • 2.Rc3#
      • 1...Bxa4
        • 2.Rc3#
      • 1...Rd6
        • 2.Qc8#
      • 1...Rh8
        • 2.Rg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::QAR2(G)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • R(C);CHECK
      • Refutation
        • R(e);XR(C)
    • Try
      • R(C);
      • Threat
        • QAB1(G),XP(f)
      • Vars
        • K(d);N_SPINP(f),P-FLIGHT::B(A)+R(E),DCHECK
        • K(d);P-FLIGHT::B(A)+R(E),DCHECK
        • R(e);SBLOCK::QAR2(G)
        • R(e);N_GUARD,P_PINQ(G)::R(E)
      • Refutation
        • B(a);XS(D)
    • Try
      • R(E);CHECK
      • Refutation
        • R(e);XR(E)
  • Actual
    • R(E);
    • Threat
      • QAB1(G),XP(f)
    • Vars
      • K(d);N_SPINP(f),P-FLIGHT::B(A)+R(C),DCHECK
      • K(d);P-FLIGHT::B(A)+R(C),DCHECK
      • B(a);N_GUARD,XS(D)::R(C)
      • R(e);SBLOCK::QAR2(G)
      • R(e);N_GUARD,P_PINQ(G)::R(C)
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