MESON Chess Problem Database

Problem Display
PID: 7636 (4B3/8/N7/3k4/8/4K2Q/8/1N6 w - - 0 1)

Hoffmann, Klaus Peter

Neue Osnabrucker Zeitung, 1992

4B3/8/N7/3k4/8/4K2Q/8/1N6

#2

5 + 1

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qe6#
  • Tries
    • 1.Bf7+?
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd6
        • 2.Qe6#
      • 1...Kc6!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Bf7#
        • 2.Qd3#
        • 2.Qe6#
        • 2.Qb5#
        • 2.Qf7#
      • 1...Kd6!
    • 1.Qd7+?
      • 1...Kc4
        • 2.Bf7#
        • 2.Qb5#
        • 2.Qe6#
        • 2.Qd3#
        • 2.Qf7#
      • 1...Ke5!
    • 1.Qh2?
      • 1...Kc4
        • 2.Qa2#
      • 1...Ke6!
    • 1.Qg3?
      • 1...Kc4
        • 2.Qg8#
      • 1...Ke6!
    • 1.Qh6?
      • 1...Kc4
        • 2.Qe6#
      • 1...Ke5!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qe6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd6
        • 2.Qe6#

FEATURES

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