MESON Chess Problem Database

Problem Display
PID: 8036 (3N1K1n/3Pr3/3QPkp1/6p1/6P1/8/1b6/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

3N1K1n/3Pr3/3QPkp1/6p1/6P1/8/1b6/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe6
      • 2.Qxe6#
    • 1...Rxd7
      • 2.exd7#
    • 1...Rf7+
      • 2.exf7#
    • 1...Rg7
      • 2.e7#
    • 1...Rh7
      • 2.e7#
    • 1...Re8+
      • 2.dxe8S#
    • 1...Bc1
      • 2.Qd4#
    • 1...Ba3
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Be5
      • 2.Qxe7#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Qxe7#
      • 1...Rxf7+
        • 2.exf7#
      • 1...Re8+
        • 2.dxe8S#
      • 1...Rxe6
        • 2.d8Q#
        • 2.d8B#
      • 1...Rxd7
        • 2.exd7#
      • 1...Ba3
        • 2.Qe5#
      • 1...Sxf7!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qxe7#
      • 1...Rf7+
        • 2.exf7#
      • 1...Re8+
        • 2.dxe8S#
      • 1...Rxe6
        • 2.d8Q#
        • 2.d8B#
      • 1...Rxd7
        • 2.exd7#
      • 1...Rg7
        • 2.e7#
      • 1...Rh7
        • 2.e7#
      • 1...Ba3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(e);OGATE,P_SPINR(e),XP(C)::QAR1(B),XR(e)
    • R(e);OGATE,XP(D)::QAR(B)+P(C),XR(e)
    • R(e);CHECK,OGATE::QAR(B)+P(C),XR(e)
    • R(e);OGATE::QAR(B)+P(C)
    • R(e);CHECK,OGATE::PXR(e)=S
    • B(a);N_GUARD::QAB(B)
    • B(a);N_GUARD::QAB(B),XB(a)
    • B(a);SBLOCK::QAB1(B),XR(e)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(B),XR(e)
      • Vars
        • R(e);CHECK,OGATE,XS(E)::QAR(B)+P(C),XR(e)
        • R(e);CHECK,OGATE::PXR(e)=S
        • R(e);P_SPINR(e),XP(C)::P=Q
        • R(e);OGATE,XP(D)::QAR(B)+P(C),XR(e)
        • B(a);N_GUARD::QAB1(B)
      • Refutation
        • S(f);XS(E)
  • Actual
    • S(E);
    • Threat
      • QAB1(B),XR(e)
    • Vars
      • R(e);CHECK,OGATE::QAR(B)+P(C),XR(e)
      • R(e);CHECK,OGATE::PXR(e)=S
      • R(e);P_SPINR(e),XP(C)::P=Q
      • R(e);OGATE,XP(D)::QAR(B)+P(C),XR(e)
      • R(e);OGATE::QAR(B)+P(C)
      • B(a);N_GUARD::QAB1(B)
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