MESON Chess Problem Database

Problem Display
PID: 106899 (8/1QK5/1PP5/3kN3/1P1NrP2/4PP2/8/8 w - - 0 1)

Jorgensen, Walther Martinus Johannes

Herning Folkeblad, 1968

8/1QK5/1PP5/3kN3/1P1NrP2/4PP2/8/8

#2

10 + 2

15593 170 Skakopgaver (Jorgensen) 1975
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qa6?
      • threat
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qa2#
        • 2.Qa5#
      • 1...Rxe3
        • 2.Qc4#
      • 1...Rxf4
        • 2.Qb5#
        • 2.Qa5#
      • 1...Rxe5
        • 2.Qb5#
        • 2.Qa2#
      • 1...Rxd4!
    • 1.Qc8?
      • threat
        • 2.Qe6#
        • 2.Qd7#
        • 2.Qd8#
        • 2.Qg8#
      • 1...Rxe3
        • 2.Qd7#
        • 2.Qd8#
      • 1...Rxd4
        • 2.Qd7#
        • 2.Qg8#
      • 1...Rxf4
        • 2.Qe6#
      • 1...Rxe5!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qa2#
        • 2.Qa5#
        • 2.Qd8#
        • 2.Qg8#
      • 1...Rxe3
        • 2.Qd8#
      • 1...Rxd4
        • 2.Qg8#
      • 1...Rxf4
        • 2.Qa5#
      • 1...Rxe5
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);
      • Threat
        • DUALS(4)
      • Vars
        • R(a);XP(A)::QAB1(I)
      • Refutation
        • R(a);XS(D)
    • Try
      • Q(I);
      • Threat
        • DUALS(4)
      • Vars
        • R(a);XP(E)::QAB1(I)
      • Refutation
        • R(a);XS(F)
  • Actual
    • Q(I);
    • Threat
      • DUALS(4)
    • Vars
      • R(a);XP(A)::QAR(I)
      • R(a);XS(D)::QAB(I)
      • R(a);XP(E)::QAR(I)
      • R(a);XS(F)::QAB(I)
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