MESON Chess Problem Database

Problem Display
PID: 212972 (8/8/8/QBbk3K/6N1/5p2/8/8 w - - 0 1)

Blumenthal, Oscar

Deutsche Schachzeitung, 1882

8/8/8/QBbk3K/6N1/5p2/8/8

#2

4 + 3

15148 Sadier Collection 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...Bd4
        • 2.Qc6#
      • 1...Bd6
        • 2.Qc4#
      • 1...Ke6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qe5#
      • 1...Kd4
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke6
        • 2.Qd7#
      • 1...Bd4
        • 2.Qc6#
      • 1...Bd6
        • 2.Qc4#

Anticipated by 57310(1872), 207506(1872)

This anticipates 5103(1899), 248100(1899), 64275(1926), 142031(1926)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
        • K(c);P-FLIGHT::QAB1(B)
        • B(b);OGATE,SBLOCK::QAB1(B)
        • B(b);SBLOCK::QAB1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);P-FLIGHT::QAB1(B)
      • K(c);S_FLIGHT::QAR1(B)
      • K(c);S_FLIGHT::QAB1(B)
      • B(b);SBLOCK::QAB1(B)
      • B(b);OGATE,SBLOCK::QAB1(B)
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