MESON Chess Problem Database

Problem Display
PID: 6393 (8/8/k1K4Q/8/8/8/1p6/8 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Die Schwalbe, 1929

8/8/k1K4Q/8/8/8/1p6/8

#2

2 + 2

4349 Kleinste Schachaufgaben Drei- und Viersteiner 1970
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf8?
      • threat
        • 2.Qa3#
        • 2.Qa8#
      • 1...Ka5
        • 2.Qa3#
      • 1...b1S
        • 2.Qa8#
      • 1...Ka7!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qb6#
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...b1Q
        • 2.Qa3#
      • 1...b1S
        • 2.Qb6#
      • 1...b1R
        • 2.Qa3#

Anticipated by 2446(0000), 9304(1868), 44560(1868)

This anticipates 15222(1981)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
        • P(a);::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • P(a);::QAR(B)
      • P(a);::QAR1(B)
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