MESON Chess Problem Database

Problem Display
PID: 162039 (4K3/n7/2nN4/5p2/1p3B2/2k5/4P3/bQ6 w - - 0 1)

Geary, William

Auckland Weekly News, 1915

(First published on Thu May 6 1915)

4K3/n7/2nN4/5p2/1p3B2/2k5/4P3/bQ6

#2

5 + 6

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qd3#
  • Tries
    • 1.Se4+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...fxe4!
    • 1.Qc2+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxc2!
    • 1.Qc1+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kb3!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxb3!
  • Keys
    • 1.Qa2!
      • 1...Kd4
        • 2.Qc4#
      • 1...Bb2
        • 2.Qc4#
      • 1...b3
        • 2.Qd2#
      • 1...Sd4
        • 2.Bd2#
      • 1...Sa5
        • 2.Be5#
      • 1...Se5
        • 2.Bxe5#
      • 1...Se7
        • 2.Be5#
      • 1...Sb8
        • 2.Be5#
      • 1...Sd8
        • 2.Be5#
      • 1...Sb5
        • 2.Sxb5#
      • 1...Sc8
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR1(A)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • P(d);XS(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • B(a);SBLOCK::QAR1(A)
      • P(c);SBLOCK::QAB1(A)
      • S(e);SBLOCK::B(C)
      • S(e);N_GUARD::B(C)
      • S(e);N_GUARD::B(C),XS(e)
      • S(f);N_GUARD::S(D),XS(f)
      • S(f);N_GUARD::S(D)
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