MESON Chess Problem Database

Problem Display
PID: 194869 (8/5k2/8/7P/B1K5/8/1B6/Q7 w - - 0 1)

Schetelich, Fritz

Deutsches Wochenschach, 1918

8/5k2/8/7P/B1K5/8/1B6/Q7

#2

5 + 1

6490 yacpdb 2019
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Bg7?
      • 1...Ke6
        • 2.Qf6#
      • 1...Ke7
        • 2.Qf6#
      • 1...Kg8!
    • 1.Qe1?
      • threat
        • 2.Qe8#
      • 1...Kf8
        • 2.Qe8#
      • 1...Kg8!
    • 1.Qf1+?
      • 1...Ke6
        • 2.Qf6#
      • 1...Ke7
        • 2.Qf6#
      • 1...Kg8!
  • Keys
    • 1.Bh8!
      • 1...Ke6
        • 2.Qf6#
      • 1...Ke7
        • 2.Qf6#
      • 1...Kf8
        • 2.Qg7#
      • 1...Kg8
        • 2.Qg7#

This anticipates 85848(1973), 23091(1996)

FEATURES

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