MESON Chess Problem Database

Problem Display
PID: 16972 (8/8/K7/8/k3P3/pp6/7Q/8 w - - 0 1)

Laaksonen, Hellmuth

Var Varld, 1944

8/8/K7/8/k3P3/pp6/7Q/8

#2

3 + 3

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Qc7?
      • threat
        • 2.Qa5#
        • 2.Qc4#
      • 1...a2
        • 2.Qa5#
      • 1...b2
        • 2.Qc4#
      • 1...Kb4!
    • 1.Qd2?
      • threat
        • 2.Qa5#
        • 2.Qd4#
      • 1...a2
        • 2.Qa5#
      • 1...b2!
    • 1.Qh5?
      • threat
        • 2.Qa5#
        • 2.Qb5#
      • 1...a2
        • 2.Qa5#
      • 1...b2
        • 2.Qb5#
      • 1...Kb4!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qd4#
        • 2.Qa5#
        • 2.Qb5#
      • 1...Kb4
        • 2.Qd4#
      • 1...a2
        • 2.Qa5#
      • 1...b2
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(A)
        • P(b);::QAR2(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(A)
        • P(b);::QAB1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • P(a);::QAR1(A)
      • P(b);::QAB1(A)
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