MESON Chess Problem Database

Problem Display
PID: 9609 (1k6/8/3K4/8/6B1/8/8/7Q w - - 0 1)

Schumer, Jacob

Transvaal Leader, 1906

1k6/8/3K4/8/6B1/8/8/7Q

#2

3 + 1

4349 Kleinste Schachaufgaben Drei- und Viersteiner 1970
2012 Miniature Chess Problems from Many Countries 1981
3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bd1?
      • 1...Kc8
        • 2.Qa8#
      • 1...Ka7!
    • 1.Be2?
      • 1...Kc8
        • 2.Qa8#
      • 1...Ka7!
    • 1.Bf3?
      • 1...Kc8
        • 2.Qh8#
      • 1...Ka7!
    • 1.Bh5?
      • 1...Kc8
        • 2.Qa8#
      • 1...Ka7!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qb7#
      • 1...Ka7
        • 2.Qb7#
      • 1...Kxc8
        • 2.Qa8#

This anticipates 160087(1987), 87184(1992)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT,XB(B)::QAR2(A)
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