MESON Chess Problem Database

Problem Display
PID: 241702 (3kr3/8/1N1B4/Kn6/8/3Q4/8/8 w - - 0 1)

Mlynka, Karol

Kudesnik, 2007

3kr3/8/1N1B4/Kn6/8/3Q4/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd6
      • 2.Qxd6#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qc8#
      • 1...Sa7
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sxd6!
    • 1.Qf5?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sxd6
        • 2.Qd7#
      • 1...Re7
        • 2.Qc8#
      • 1...Sa7
        • 2.Qd7#
      • 1...Re6!
    • 1.Qh3?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sxd6
        • 2.Qd7#
      • 1...Re7
        • 2.Qc8#
      • 1...Sa7
        • 2.Qd7#
      • 1...Re6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qd7#
      • 1...Re7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE,P_SPINS(a),XB(D)::QAR2(A),XS(a)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(a);N_GUARD::QAB1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • S(a);XB(D)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XB(D)::QAR1(A)
        • R(c);::QAR1(A)
        • S(a);::QAR1(A)
      • Refutation
        • R(c);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XB(D)::QAR1(A)
        • R(c);::QAR1(A)
        • S(a);::QAR1(A)
      • Refutation
        • R(c);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • R(c);N_GUARD::QAB1(A),XR(c)
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