MESON Chess Problem Database

Problem Display
PID: 140883 (8/1Q3p2/4k3/7K/5P2/1R6/B7/8 w - - 0 1)

Tuxen, Harri Viggo

Skakbladet, 1961

8/1Q3p2/4k3/7K/5P2/1R6/B7/8

#2

5 + 2

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Rb6#
  • Tries
    • 1.Rc3+?
      • 1...Kd6
        • 2.Rc6#
        • 2.Qc7#
      • 1...Kf6
        • 2.Qxf7#
      • 1...Kf5!
    • 1.Rd3+?
      • 1...Kf6
        • 2.Qxf7#
      • 1...Kf5!
    • 1.Re3+?
      • 1...Kf5
        • 2.Qxf7#
      • 1...Kf6
        • 2.Qxf7#
      • 1...Kd6!
    • 1.Rb4+?
      • 1...Kf5
        • 2.Qxf7#
      • 1...Kf6
        • 2.Qxf7#
      • 1...Kd6!
    • 1.Rb5+?
      • 1...Kf6
        • 2.Qxf7#
      • 1...Kd6!
  • Keys
    • 1.Qc7!
      • 1...Kd5
        • 2.Rb4#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kf6
        • 2.Qe5#
      • 1...f5
        • 2.Rb6#
      • 1...f6
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::B(A)+R(B),DCHECK
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E),XP(b)
        • K(a);P-FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E),XP(b)
        • K(a);P-FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::B(A)+R(B)
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);P-FLIGHT::QAB1(E)
      • P(b);SBLOCK::B(A)+R(B),DCHECK
      • P(b);SBLOCK::B(A)+R(B)
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