MESON Chess Problem Database

Problem Display
PID: 10764 (N3Q3/3Bp3/3k4/8/2p1K3/8/8/8 w - - 0 1)

Speckmann, Werner

Tidskrift for Schack, 1967

N3Q3/3Bp3/3k4/8/2p1K3/8/8/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qxe7#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Qc6#
      • 1...Ke6
        • 2.Qg6#
      • 1...e5
        • 2.Qxe5#
      • 1...e6
        • 2.Qf8#
      • 1...Kc5!
    • 1.Qb8+?
      • 1...Kc5
        • 2.Qb6#
      • 1...Kxd7!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qc6#
      • 1...Kc5
        • 2.Qxe7#
      • 1...Ke6
        • 2.Qg6#
      • 1...e5
        • 2.Qxe5#
      • 1...e6
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(D),XP(c)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAR2(D)
        • P(c);OGATE::QAB1(D),XP(c)
        • P(c);OGATEB,SBLOCK::QAB(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT,XB(B)
  • Actual
    • B(B);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);S_FLIGHT::QAB(D),XP(c)
      • K(b);P-FLIGHT,P_SPINP(c)::QAR2(D)
      • P(c);OGATE::QAB1(D),XP(c)
      • P(c);OGATEB,SBLOCK::QAB(D)
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