MESON Chess Problem Database

Problem Display
PID: 65352 (5N2/R2N3p/3p4/4pkP1/7Q/2nP2P1/4p3/B3K3 w - - 0 1)

Rice, John Michael

3rd Prize, The Problemist, 2006

5N2/R2N3p/3p4/4pkP1/7Q/2nP2P1/4p3/B3K3

#2

9 + 6

56 The Problemist 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.dxe4#
    • 1...e4
      • 2.Qf4#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Rf7#
      • 1...e4
        • 2.Qf4#
      • 1...Se4
        • 2.dxe4#
      • 1...Sd5!
    • 1.Sb6?
      • threat
        • 2.Rf7#
      • 1...e4
        • 2.Qf4#
      • 1...Se4
        • 2.dxe4#
      • 1...Sd5!
    • 1.Sf6?
      • threat
        • 2.Qg4#
      • 1...e4
        • 2.Qf4#
      • 1...h5!
    • 1.Sb8?
      • threat
        • 2.Rf7#
      • 1...e4
        • 2.Qf4#
      • 1...Se4
        • 2.dxe4#
      • 1...Sd5!
    • 1.Qxh7+?
      • 1...Kxg5
        • 2.Qg6#
      • 1...Kg4!
    • 1.g6?
      • threat
        • 2.Qh5#
      • 1...Se4
        • 2.dxe4#
      • 1...h5
        • 2.Qxh5#
      • 1...hxg6!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qf4#
      • 1...Kxe5
        • 2.Qe4#
      • 1...dxe5
        • 2.Rf7#
      • 1...Sd5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);OGATE::P(C),XS(b)
    • P(c);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(H);
      • Threat
        • R(G)
      • Vars
        • P(c);N_GUARD::QAR1(E)
        • S(b);OGATE::P(C),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(H);
      • Threat
        • R(G)
      • Vars
        • P(c);N_GUARD::QAR1(E)
        • S(b);OGATE::P(C),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(H);
      • Threat
        • QAB1(E)
      • Vars
        • P(c);N_GUARD::QAR1(E)
      • Refutation
        • P(f);
    • Try
      • S(H);
      • Threat
        • R(G)
      • Vars
        • P(c);N_GUARD::QAR1(E)
        • S(b);OGATE::P(C),XS(b)
      • Refutation
        • S(b);
    • Try
      • Q(E);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT,XP(F)::QAR1(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(F);
      • Threat
        • QAR2(E)
      • Vars
        • S(b);OGATE::P(C),XS(b)
        • P(f);::QAR2(E),XP(f)
      • Refutation
        • P(f);XP(F)
  • Actual
    • S(H);XP(c)
    • Threat
      • QAR1(E)
    • Vars
      • K(d);P-FLIGHT,P_SPINS(b),XS(H)::QAR1(E)
      • P(e);SBLOCK,XS(H)::R(G)
      • S(b);::QAB1(E)
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