MESON Chess Problem Database

Problem Display
PID: 217868 (8/8/2K5/k7/P2Q4/8/8/8 w - - 0 1)

Burchard, Friedrich

Deutsche Schachzeitung, 1968

8/8/2K5/k7/P2Q4/8/8/8

#2

3 + 1

15148 Sadier Collection 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Qb6#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qb5#
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxa4!
    • 1.Qc5+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxa4!
    • 1.Qb4+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxb4!
  • Keys
    • 1.Kc7!
      • 1...Ka6
        • 2.Qb6#

Anticipated by 229923(1968), 230394(1968)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
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