MESON Chess Problem Database

Problem Display
PID: 66760 (8/2Q5/8/N7/1kP5/6B1/8/1K6 w - - 0 1)

Hoffmann, Martin Wolfgang

Schweizerische Schachzeitung, 1967

8/2Q5/8/N7/1kP5/6B1/8/1K6

#2

5 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc6?
      • 1...Ka3
        • 2.Bd6#
      • 1...Kxa5
        • 2.Be1#
        • 2.Qb5#
      • 1...Kc3!
  • Keys
    • 1.Qd7!
      • 1...Ka3
        • 2.Bd6#
      • 1...Kc3
        • 2.Be1#
      • 1...Kxa5
        • 2.Qb5#
      • 1...Kc5
        • 2.Qd6#

Anticipated by 10692(1967)

This anticipates 95618(1994), 53567(2004)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT,XS(D)::QAR1(E)
      • K(a);S_FLIGHT::QAB1(E)
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