MESON Chess Problem Database

Problem Display
PID: 261125 (7b/1bp5/2k2n2/R1P1P3/3Q3K/5N1p/5nB1/6q1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Neue Zurcher Zeitung, 2016

7b/1bp5/2k2n2/R1P1P3/3Q3K/5N1p/5nB1/6q1

#2

7 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Qa4#
  • Tries
    • 1.Qd7+?
      • 1...Sxd7
        • 2.Sd4#
      • 1...Kxd7!
  • Keys
    • 1.e6!
      • threat
        • 2.Se5#
      • 1...S6e4
        • 2.Qd7#
      • 1...Sd5
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(e);SBLOCK,XQ(C)::B(A)+S(B),DCHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(C)
  • Actual
    • P(G);
    • Threat
      • B(A)+S(B),DCHECK
    • Vars
      • S(e);N_GUARD::QAB1(C)
      • S(e);SBLOCK::QAB(C)
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