MESON Chess Problem Database

Problem Display
PID: 1017 (n5b1/3B1Q2/2Npr3/1p1kP3/1P4p1/2n5/3N4/5K2 w - - 0 1)

Rice, John Michael

The Problemist Supplement, 1996

n5b1/3B1Q2/2Npr3/1p1kP3/1P4p1/2n5/3N4/5K2

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bh7
      • 2.Qxe6#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qd4#
      • 1...dxe5
        • 2.Qc5#
      • 1...Se2
        • 2.Qg2#
      • 1...Rf6!
    • 1.Qf3+?
      • 1...Se4
        • 2.Qxe4#
        • 2.Qb3#
        • 2.Qd3#
      • 1...gxf3!
    • 1.Qf4?
      • threat
        • 2.Qd4#
      • 1...Rf6
        • 2.Se7#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...dxe5!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd3#
      • 1...Rf6
        • 2.exf6#
      • 1...Bh7
        • 2.Qxe6#
      • 1...Se2
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(h);N_GUARD::QAB1(G),XR(f)
  • Tries
    • Try
      • Q(G);N_PINR(f)
      • Threat
        • QAR1(G)
      • Vars
        • P(e);N_GUARD,XP(D)::QAR1(G)
        • S(a);N_GUARD::QAB(G)
      • Refutation
        • R(f);P_PINQ(G)
    • Try
      • Q(G);CHECK,N_PINR(f)
      • Refutation
        • P(b);XQ(G)
    • Try
      • Q(G);N_PINR(f)
      • Threat
        • QAR1(G)
      • Vars
        • R(f);N_GUARD,P_PINQ(G)::S(E)
        • S(a);N_GUARD::QAB1(G)
        • S(a);N_GUARD::QAB1(G),XS(a)
      • Refutation
        • P(e);XP(D)
  • Actual
    • Q(G);N_PINR(f)
    • Threat
      • QAR2(G)
    • Vars
      • R(f);OGATE,P_PINQ(G)::QAR(G)+P(D),XR(f)
      • B(h);N_GUARD::QAB1(G),XR(f)
      • S(a);N_GUARD::QAB1(G)
      • S(a);N_GUARD::QAB1(G),XS(a)
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