MESON Chess Problem Database

Problem Display
PID: 34617 (2QRr3/8/3P1nN1/1Kbk1p2/3pb3/3p4/8/8 w - - 0 1)

Shire, David J

Australian Chess Problem Magazine, 1997

2QRr3/8/3P1nN1/1Kbk1p2/3pb3/3p4/8/8

#2

5 + 8

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf4#
    • 1...Re6
      • 2.Qb7#
      • 2.Qxc5#
      • 2.Qc6#
      • 2.Qa8#
    • 1...Ba3
      • 2.Qc4#
    • 1...Bb4
      • 2.Qc4#
    • 1...Bb6
      • 2.Qc4#
    • 1...Bxd6
      • 2.Qc4#
    • 1...Ba7
      • 2.Qc4#
  • Tries
    • 1.Qxf5+?
      • 1...Re5
        • 2.Sf4#
        • 2.Se7#
        • 2.Qxe5#
      • 1...Bxf5!
  • Keys
    • 1.d7!
      • threat
        • 2.Qc6#
      • 1...Kd6
        • 2.dxe8S#
      • 1...Ke6
        • 2.dxe8Q#
      • 1...Re6
        • 2.Qxc5#
      • 1...Bd6
        • 2.Qc4#

This is a version of 147130

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(h);SBLOCK::S(C)
    • B(d);OGATE::QAB1(D)
    • B(d);OGATE,P_SPINB(d),XP(B)::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK,XP(f)
      • Refutation
        • B(c);XQ(D)
  • Actual
    • P(B);
    • Threat
      • QAB1(D)
    • Vars
      • K(e);P-FLIGHT::PXR(h)=S
      • K(e);S_FLIGHT::PXR(h)=Q
      • R(h);SBLOCK::QAR1(D),XB(d)
      • B(d);OGATE,SBLOCK::QAB1(D)
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