MESON Chess Problem Database

Problem Display
PID: 85848 (8/7B/7B/K1P1k3/8/8/QP6/8 w - - 0 1)

Speckmann, Werner

Die Schwalbe, 1973

8/7B/7B/K1P1k3/8/8/QP6/8

#2

6 + 1

6490 yacpdb 2009
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Qe6+?
      • 1...Kd4
        • 2.Be3#
      • 1...Kxe6!
  • Keys
    • 1.Bg8!
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke4
        • 2.Qd5#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kf6
        • 2.Qe6#

Anticipated by 194869(1918)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAB1(A)
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