MESON Chess Problem Database

Problem Display
PID: 92736 (8/8/2Q2K2/3P4/3kB3/8/7p/5NNb w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Tijdschrift vd NSB, 1902

8/8/2Q2K2/3P4/3kB3/8/7p/5NNb

#2

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qc4#
  • Tries
    • 1.Qc3+?
      • 1...Kxe4
        • 2.Qc4#
      • 1...Kxc3!
    • 1.Qc5+?
      • 1...Kxe4
        • 2.Qc4#
      • 1...Kxc5!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qb4#
      • 1...Kc3
        • 2.Se2#
      • 1...Kxe4
        • 2.Qc4#
      • 1...Bxe4
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,XB(C)::QAR2(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XB(C)::QAR2(E)
      • Refutation
        • K(c);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XB(C)::QAR2(E)
      • Refutation
        • K(c);S_FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAR2(E)
    • Vars
      • K(c);S_FLIGHT::S(B)
      • K(c);P-FLIGHT,XB(C)::QAR2(E)
      • B(a);SBLOCK,XB(C)::S(B)
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