MESON Chess Problem Database

Problem Display
PID: 7996 (4k3/3N1p2/2P3P1/5N2/4P3/4Q3/8/4K3 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

4k3/3N1p2/2P3P1/5N2/4P3/4Q3/8/4K3

#2

7 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Kf8
        • 2.Qc5#
        • 2.Qh6#
        • 2.Qa3#
        • 2.g7#
      • 1...Kd8!
    • 1.Qf4?
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...fxg6!
    • 1.Qg5?
      • threat
        • 2.Sd6#
        • 2.Sg7#
        • 2.Qe7#
      • 1...fxg6
        • 2.Sd6#
        • 2.Qe7#
      • 1...f6!
    • 1.Qh6?
      • threat
        • 2.Qf8#
        • 2.Qh8#
      • 1...fxg6
        • 2.Qf8#
      • 1...Kd8!
    • 1.Qa7?
      • threat
        • 2.Qb8#
        • 2.Qa8#
      • 1...Kd8
        • 2.Qb8#
      • 1...fxg6!
    • 1.Qa3?
      • threat
        • 2.Qe7#
        • 2.Qf8#
        • 2.Qa8#
      • 1...fxg6
        • 2.Qe7#
        • 2.Qf8#
      • 1...Kd8!
    • 1.Qg3?
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...fxg6!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qb8#
      • 1...Kd8
        • 2.Qb8#
      • 1...fxg6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);XP(F)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);XP(F)::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);XP(F)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);XP(F)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • P(a);OGATE,XP(F)::QAR2(B)
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