MESON Chess Problem Database

Problem Display
PID: 189973 (7b/7Q/8/3p4/1K1k4/3B4/8/4N3 w - - 0 1)

Freimann, Fritz

La Strategie, 1913

7b/7Q/8/3p4/1K1k4/3B4/8/4N3

#2

4 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Sc2#
      • 2.Qa7#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Sc2#
        • 2.Qf4#
      • 1...Be5
        • 2.Sc2#
        • 2.Qf2#
      • 1...Ke3!
    • 1.Qh2?
      • threat
        • 2.Qf4#
      • 1...Be5
        • 2.Qg1#
        • 2.Qf2#
      • 1...Ke3!
    • 1.Qc7?
      • threat
        • 2.Qf4#
      • 1...Be5
        • 2.Qb6#
        • 2.Qc5#
        • 2.Qa7#
      • 1...Ke3!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qf4#
      • 1...Ke5
        • 2.Sf3#
      • 1...Be5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Threat
      • QAR2(D)
    • Vars
      • K(a);S_FLIGHT::S(A)
      • B(c);SBLOCK::QAB(D)
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