MESON Chess Problem Database

Problem Display
PID: 18833 (3k4/8/B3R3/8/b7/7Q/5K2/8 w - - 0 1)

Hultberg, Gustav Herbert

Skakbladet, 1958

3k4/8/B3R3/8/b7/7Q/5K2/8

#2

4 + 2

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qc8#
      • 1...Kd7
        • 2.Qc8#
      • 1...Bd7
        • 2.Qa5#
      • 1...Bc6!
    • 1.Qd3+?
      • 1...Kc7
        • 2.Qd6#
      • 1...Bd7!
    • 1.Qh4+?
      • 1...Kd7
        • 2.Qe7#
      • 1...Kc7!
    • 1.Qh8+?
      • 1...Kc7
        • 2.Qc8#
      • 1...Kd7
        • 2.Qc8#
      • 1...Be8!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qe7#
      • 1...Kc7
        • 2.Qd6#
      • 1...Kd7
        • 2.Qd6#
        • 2.Qe7#
      • 1...Bd7
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
        • B(a);SBLOCK::QAB(B)
      • Refutation
        • B(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(B)
        • K(b);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • B(a);OGATE,SBLOCK::QAB(B)
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