MESON Chess Problem Database

Problem Display
PID: 34616 (8/3P1pKn/1Q4p1/3kP3/3r2q1/5P2/2P1r1N1/B4B2 w - - 0 1)

Shire, David J

Australian Chess Problem Magazine, 1997

8/3P1pKn/1Q4p1/3kP3/3r2q1/5P2/2P1r1N1/B4B2

#2

9 + 7

3256 David Shire Selected Chess Problems 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se3#
    • 1...Qe6
      • 2.Qb5#
    • 1...Re1
      • 2.Qd6#
    • 1...Rxc2
      • 2.Qd6#
    • 1...Red2
      • 2.Qd6#
    • 1...Rf2
      • 2.Qd6#
    • 1...Rxg2
      • 2.Qd6#
    • 1...Re3
      • 2.Qd6#
    • 1...Ree4
      • 2.Qd6#
    • 1...Rc4
      • 2.Qd6#
  • Tries
    • 1.Se3+?
      • 1...Rxe3
        • 2.Qd6#
      • 1...Kxe5!
  • Keys
    • 1.d8S!
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Se3#
      • 1...Kxe5
        • 2.Qc5#
      • 1...Qxf3
        • 2.Qxd4#
      • 1...Rxc2
        • 2.Qd6#
      • 1...Rxe5
        • 2.Qc6#
      • 1...Qd7
        • 2.Qxd4#
      • 1...Qc8
        • 2.Qxd4#
      • 1...Rb4
        • 2.Qc6#
      • 1...Rc4
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 7
  • Sets
    • K(d);P_SPINR(a),S_FLIGHT::S(D)
    • Q(c);SBLOCK::QAR2(G)
    • R(a);::QAR1(G)
    • R(a);XP(C)::QAR1(G)
    • R(a);XS(D)::QAR1(G)
    • R(b);SBLOCK::QAR1(G)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • R(a);XS(D)::QAR1(G)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(b),XP(F)
  • Actual
    • P(H);
    • Threat
      • QAR2(G)
    • Vars
      • K(d);P_SPINR(a),S_FLIGHT::S(D)
      • K(d);P-FLIGHT,P_SPINR(b),XP(F)::QAR2(G)
      • Q(c);N_GUARD,XP(E)::QAR1(G),XR(b)
      • R(a);XP(C)::QAR1(G)
      • R(a);SBLOCK,XP(F)::QAB1(G)
      • Q(c);N_GUARD::QAR1(G),XR(b)
      • R(b);::QAB1(G)
      • R(b);SBLOCK::QAR1(G)
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