MESON Chess Problem Database

Problem Display
PID: 8037 (2r2Q2/1BbkP3/5B2/5K2/8/8/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

2r2Q2/1BbkP3/5B2/5K2/8/8/8/8

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.e8Q#
      • 2.e8B#
    • 1...Bd6
      • 2.Qxc8#
  • Tries
    • 1.Bc6+?
      • 1...Kd6
        • 2.e8Q#
        • 2.e8B#
      • 1...Kxc6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.e8S#
      • 1...Kd6
        • 2.Qd5#
      • 1...Bd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Re8
        • 2.Qe6#
      • 1...Rf8
        • 2.exf8Q#
        • 2.exf8B#
      • 1...Bd6
        • 2.e8Q#
        • 2.e8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::P=Q
    • B(a);SBLOCK::QAB1(E),XR(c)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);P-FLIGHT::P=Q
      • Refutation
        • K(b);S_FLIGHT,XB(C)
  • Actual
    • Q(E);
    • Threat
      • P=S
    • Vars
      • K(b);P-FLIGHT::QAR1(E)
      • B(a);OGATE::PXB(a)=Q
      • R(c);SBLOCK::QAB1(E)
      • R(c);OGATE::PXR(c)=Q
      • B(a);SBLOCK::P=Q
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