MESON Chess Problem Database

Problem Display
PID: 145458 (8/8/7R/n2k1pK1/N7/1n6/2N1P3/1Q3B2 w - - 0 1)

Barnett, Bernard

Baltimore Sunday News, 1888

8/8/7R/n2k1pK1/N7/1n6/2N1P3/1Q3B2

#2

7 + 4

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.e4#
  • Tries
    • 1.Kxf5?
      • threat
        • 2.e4#
      • 1...Kc4
        • 2.e4#
      • 1...Sd2
        • 2.Qb5#
      • 1...Sc5
        • 2.Sb6#
      • 1...Sd4+!
  • Keys
    • 1.Kf4!
      • 1...Kc4
        • 2.e4#
      • 1...Sa1
        • 2.Qb5#
      • 1...Sc1
        • 2.Qb5#
      • 1...Sd2
        • 2.Qb5#
      • 1...Sd4
        • 2.Se3#
      • 1...Sc5
        • 2.Sb6#
      • 1...Sc4
        • 2.Bg2#
      • 1...Sc6
        • 2.Qxb3#
      • 1...Sb7
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(B)+P(D)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(d)
      • Threat
        • P(D)
      • Vars
        • K(c);S_FLIGHT::B(B)+P(D)
        • S(a);OGATE::QAR2(A)
        • S(a);SBLOCK::S(E)
      • Refutation
        • S(a);CHECK
  • Actual
    • K(F);S_FLIGHT
    • Vars
      • K(c);S_FLIGHT::B(B)+P(D)
      • S(a);OGATE::QAR2(A)
      • S(a);SBLOCK::S(C)
      • S(a);SBLOCK::S(E)
      • S(b);SBLOCK::B(B)
      • S(b);N_GUARD::QAB(A),XS(a)
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