MESON Chess Problem Database

Problem Display
PID: 213039 (8/6N1/RPk1p3/K3Q3/8/8/8/8 w - - 0 1)

Toft, Jens Peter

Land og Folk, 1974

8/6N1/RPk1p3/K3Q3/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kb7
      • 2.Qc7#
    • 1...Kd7
      • 2.Qc7#
  • Tries
    • 1.Ka4?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kb7!
    • 1.Kb4?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kb7!
    • 1.Sh5?
      • 1...Kb7
        • 2.Qc7#
      • 1...Kd7!
    • 1.Sxe6?
      • 1...Kb7
        • 2.Qc7#
      • 1...Kd7!
    • 1.Se8?
      • 1...Kb7
        • 2.Qc7#
      • 1...Kd7!
    • 1.Qd6+?
      • 1...Kb7
        • 2.Qc7#
      • 1...Kxd6!
    • 1.Qc5+?
      • 1...Kb7
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxc5!
    • 1.b7+?
      • 1...Kd7
        • 2.Qd6#
      • 1...Kxb7!
  • Keys
    • 1.Ra8!
      • 1...Kb7
        • 2.Qe4#
      • 1...Kd7
        • 2.Qc7#
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • P(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::QAB(B)
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