MESON Chess Problem Database

Problem Display
PID: 58935 (8/1N3Q2/8/2K5/k7/1p6/8/8 w - - 0 1)

Gasic, Radovan

Troll, 1997

8/1N3Q2/8/2K5/k7/1p6/8/8

#2

3 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...b2
      • 2.Qa2#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Qa7#
      • 1...Ka5
        • 2.Qa7#
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Sd8?
      • threat
        • 2.Qa7#
      • 1...Ka5
        • 2.Qa7#
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Qd5?
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Qe6?
      • threat
        • 2.Qa6#
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Qg8?
      • threat
        • 2.Qa8#
      • 1...b2
        • 2.Qa2#
      • 1...Ka3!
    • 1.Qf1?
      • threat
        • 2.Qa6#
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...b2!
    • 1.Qf6?
      • threat
        • 2.Qa1#
        • 2.Qa6#
      • 1...Ka3
        • 2.Qa1#
      • 1...b2!
    • 1.Qg7?
      • threat
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...b2!
  • Keys
    • 1.Sa5!
      • 1...Ka3
        • 2.Qxb3#
      • 1...Kxa5
        • 2.Qa7#
      • 1...b2
        • 2.Qa2#

FEATURES

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