MESON Chess Problem Database

Problem Display
PID: 232943 (8/3KPp2/6N1/3N1k2/7Q/8/8/8 w - - 0 1)

Grassano, Carlos A

Kudesnik, 2013

8/3KPp2/6N1/3N1k2/7Q/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...fxg6
      • 2.Qf4#
  • Tries
    • 1.e8Q?
      • threat
        • 2.Sde7#
        • 2.Qxf7#
        • 2.Qh5#
        • 2.Qee4#
      • 1...fxg6
        • 2.Se3#
        • 2.Qf4#
        • 2.Qee4#
        • 2.Qe6#
      • 1...f6
        • 2.Se3#
        • 2.Sde7#
        • 2.Qf4#
        • 2.Qh5#
        • 2.Qee4#
      • 1...Kxg6!
    • 1.e8B?
      • threat
        • 2.Sde7#
      • 1...fxg6
        • 2.Qf4#
      • 1...Kxg6!
    • 1.e8R?
      • threat
        • 2.Sde7#
        • 2.Qh5#
      • 1...fxg6
        • 2.Se3#
        • 2.Qf4#
      • 1...Kxg6!
  • Keys
    • 1.e8S!
      • threat
        • 2.Sde7#
      • 1...Kxg6
        • 2.Se7#
      • 1...fxg6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK,XS(C)::QAR1(A)
  • Tries
    • Try
      • P(E);
      • Threat
        • DUALS(4)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)
    • Try
      • P(E);
      • Threat
        • S(B)
      • Vars
        • P(b);XS(C)::QAR1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XS(C)
    • Try
      • P(E);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • P(E);
    • Threat
      • S(B)
    • Vars
      • K(a);S_FLIGHT,XS(C)::S(B)
      • P(b);SBLOCK,XS(C)::QAR1(A)
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