MESON Chess Problem Database

Problem Display
PID: 233896 (3Q4/3b4/3K4/3n4/3N4/3N4/3p4/3k4 w - - 0 1)

Hannemann, Knud Harald

Skakbladet, 1920

3Q4/3b4/3K4/3n4/3N4/3N4/3p4/3k4

#2

4 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa5?
      • threat
        • 2.Qa1#
      • 1...Ba4
        • 2.Qxa4#
      • 1...Sc3!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qa1#
      • 1...Ba4
        • 2.Qxa4#
      • 1...Sc3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • B(d);N_GUARD::QAB(D),XB(d)
      • Refutation
        • S(c);
  • Actual
    • Q(D);
    • Threat
      • QAR(D)
    • Vars
      • B(d);N_GUARD::QAB(D),XB(d)
      • S(c);OGATE::QAR(D)
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