MESON Chess Problem Database

Problem Display
PID: 243104 (3K4/8/3k1p2/3b4/3B4/8/8/5Q2 w - - 0 1)

Armeni, Alberto

ChessStar, 2011

3K4/8/3k1p2/3b4/3B4/8/8/5Q2

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qa6#
    • 1...Ke6
      • 2.Qxf6#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qd7#
      • 1...Ke6
        • 2.Qd7#
      • 1...Be6
        • 2.Qc5#
      • 1...Bc6!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Qxf6#
      • 1...Kc6!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qd7#
      • 1...Kc6
        • 2.Qd7#
      • 1...Bc6
        • 2.Bc5#
      • 1...Be6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
    • K(b);P-FLIGHT::QAR1(A),XP(c)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT::QAB1(A)
      • B(a);SBLOCK::B(B)
      • B(a);OGATE,SBLOCK::QAB1(A)
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