MESON Chess Problem Database

Problem Display
PID: 225994 (1n3B2/1b4Q1/r2P2N1/p1k5/2P5/P1R2P2/n7/K7 w - - 0 1)

Fritsch, Karl

Deutsche Schachzeitung, 1920

1n3B2/1b4Q1/r2P2N1/p1k5/2P5/P1R2P2/n7/K7

#2

9 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qc7#
  • Tries
    • 1.Qd4+?
      • 1...Kc6
        • 2.Se5#
      • 1...Kxd4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qg1#
      • 1...Kd4
        • 2.Sd7#
      • 1...Kb6
        • 2.Qg1#
      • 1...Sc6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::QAR1(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);P-FLIGHT::S(G)
      • Refutation
        • K(c);S_FLIGHT,XQ(H)
  • Actual
    • S(G);
    • Threat
      • QAB(H)
    • Vars
      • K(c);S_FLIGHT::QAB(H)+S(G)
      • K(c);S_FLIGHT::QAB(H)
      • S(f);N_GUARD,SBLOCK::S(G)
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