MESON Chess Problem Database

Problem Display
PID: 101217 (6K1/B2Q4/1N6/2kN4/3p4/p7/n2P4/2q2n2 w - - 0 1)

Schorr, Isidor

Good Companions, 1922

6K1/B2Q4/1N6/2kN4/3p4/p7/n2P4/2q2n2

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sa4#
      • 2.Sa8#
      • 2.Sc8#
  • Tries
    • 1.d3?
      • threat
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sa8#
        • 2.Sc8#
      • 1...Qb2
        • 2.Sa4#
      • 1...Qh6
        • 2.Sa4#
      • 1...Qb1
        • 2.Sa4#
      • 1...Qc4
        • 2.Sa4#
        • 2.Sxc4#
        • 2.Sa8#
        • 2.Sc8#
      • 1...Qg5+!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Sa6#
      • 1...Qc4+
        • 2.Sbd5#
      • 1...Kb4
        • 2.Qb5#
      • 1...Sb4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(A);
      • Threat
        • DUALS(4)
      • Vars
        • Q(a);::B(D)+S(C),DCHECK
      • Refutation
        • Q(a);CHECK
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(a);CHECK,SBLOCK::B(D)+S(C)
      • K(f);S_FLIGHT::QAR1(E)
      • S(c);SBLOCK::S(B)
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