MESON Chess Problem Database

Problem Display
PID: 101627 (8/8/6Q1/8/3P4/nK6/p7/k7 w - - 0 1)

Innocenti, Didier

diagrammes, 1989

8/8/6Q1/8/3P4/nK6/p7/k7

#2

3 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Qg1#
    • 1...Sb5
      • 2.Qg1#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Sc4
        • 2.Qd1#
        • 2.Qc1#
        • 2.Qxa2#
      • 1...Sxc2!
    • 1.Qd3?
      • 1...Sc2
        • 2.Qd1#
      • 1...Sc4
        • 2.Qf1#
        • 2.Qd1#
      • 1...Sb5
        • 2.Qf1#
        • 2.Qd1#
      • 1...Sb1!
    • 1.Qh5?
      • 1...Kb1
        • 2.Qd1#
        • 2.Qh1#
      • 1...Sc2
        • 2.Qd1#
      • 1...Sc4
        • 2.Qd1#
        • 2.Qh1#
      • 1...Sb5
        • 2.Qd1#
        • 2.Qh1#
      • 1...Sb1!
    • 1.Qg2?
      • threat
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Kb1
        • 2.Qf1#
        • 2.Qh1#
        • 2.Qg1#
        • 2.Qb2#
      • 1...Sc4
        • 2.Qf1#
        • 2.Qh1#
        • 2.Qg1#
        • 2.Qxa2#
      • 1...Sc2!
    • 1.Qg4?
      • 1...Kb1
        • 2.Qd1#
        • 2.Qg1#
      • 1...Sc2
        • 2.Qd1#
      • 1...Sc4
        • 2.Qd1#
        • 2.Qg1#
      • 1...Sb5
        • 2.Qd1#
        • 2.Qg1#
      • 1...Sb1!
    • 1.Qg5?
      • 1...Kb1
        • 2.Qg1#
      • 1...Sc2
        • 2.Qc1#
      • 1...Sc4
        • 2.Qc1#
        • 2.Qg1#
      • 1...Sb5
        • 2.Qc1#
        • 2.Qg1#
      • 1...Sb1!
    • 1.Qh6?
      • 1...Kb1
        • 2.Qh1#
      • 1...Sc2
        • 2.Qc1#
      • 1...Sc4
        • 2.Qc1#
        • 2.Qh1#
      • 1...Sb5
        • 2.Qc1#
        • 2.Qh1#
      • 1...Sb1!
  • Keys
    • 1.Qa6!
      • 1...Kb1
        • 2.Qf1#
      • 1...Sb1
        • 2.Qxa2#
      • 1...Sc2
        • 2.Qxa2#
      • 1...Sc4
        • 2.Qxa2#
      • 1...Sb5
        • 2.Qxa2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAR(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • S(c);XQ(C)
    • Try
      • Q(C);
      • Vars
        • S(c);N_GUARD::QAR(C)
      • Refutation
        • S(c);
    • Try
      • Q(C);
      • Vars
        • S(c);N_GUARD::QAR(C)
      • Refutation
        • S(c);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • S(c);
    • Try
      • Q(C);
      • Vars
        • S(c);N_GUARD::QAR(C)
      • Refutation
        • S(c);
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR(C)
        • S(c);N_GUARD::QAR2(C)
      • Refutation
        • S(c);
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR(C)
        • S(c);N_GUARD::QAR2(C)
      • Refutation
        • S(c);
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)
      • S(c);OGATE,P_SPINP(b)::QAR1(C),XP(b)
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