MESON Chess Problem Database

Problem Display
PID: 11571 (8/2K5/2B5/2k5/7Q/8/1Pn5/2r5 w - - 0 1)

Dehler, Otto Georg Edgar

Neue Leipziger Zeitung, 1939

8/2K5/2B5/2k5/7Q/8/1Pn5/2r5

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
3310 2345 Chess Problems 1997
15148 Sadier Collection 2013
5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.b4#
    • 1...Se1
      • 2.b4#
    • 1...Sa3
      • 2.b4#
    • 1...Se3
      • 2.b4#
  • Keys
    • 1.b3!
      • threat
        • 2.Qc4#
      • 1...Sd4
        • 2.Qe7#
      • 1...Sa1
        • 2.b4#
      • 1...Se1
        • 2.b4#
      • 1...Sa3
        • 2.b4#
      • 1...Se3
        • 2.b4#
      • 1...Sb4
        • 2.Qf2#

This anticipates 161684(1987)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::P(A)
  • Actual
    • P(A);
    • Threat
      • QAR1(B)
    • Vars
      • S(b);SBLOCK::QAB(B)
      • S(b);N_GUARD::P(A)
      • S(b);N_GUARD,SBLOCK::QAB(B)
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