MESON Chess Problem Database

Problem Display
PID: 65836 (4kN2/8/3P4/5Q2/8/8/1p6/bK6 w - - 0 1)

Visbeen, Frank

Probleemblad, 1996

4kN2/8/3P4/5Q2/8/8/1p6/bK6

#2

4 + 3

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Qd7#
  • Tries
    • 1.Qe6+?
      • 1...Kd8
        • 2.Qd7#
      • 1...Kxf8!
    • 1.Qh7?
      • threat
        • 2.Qe7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kxf8!
    • 1.Qd5?
      • 1...Kd8
        • 2.Qa8#
      • 1...Kxf8!
    • 1.Qf7+?
      • 1...Kd8
        • 2.Qd7#
      • 1...Kxf7!
  • Keys
    • 1.Qf3!
      • 1...Kd8
        • 2.Qa8#

Anticipated by 99662(1925)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • Q(B);
      • Vars
        • K(c);P-FLIGHT::QAR(B)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(c);P-FLIGHT::QAR(B)
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