MESON Chess Problem Database

Problem Display
PID: 76790 (8/8/6nQ/6PK/8/7k/6NP/7R w - - 0 1)

Dombey, Father

The Tablet, 1945

(First published on Sat Apr 21 1945)

8/8/6nQ/6PK/8/7k/6NP/7R

#2

6 + 2

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4+
      • 2.Sxf4#
    • 1...Sh4
      • 2.Sf4#
    • 1...Se5
      • 2.Sf4#
    • 1...Se7
      • 2.Sf4#
    • 1...Sf8
      • 2.Sf4#
    • 1...Sh8
      • 2.Sf4#
  • Tries
    • 1.Kxg6+?
      • 1...Kg4
        • 2.Qh5#
      • 1...Kxg2!
    • 1.Qg7?
      • 1...Sf4+
        • 2.Sxf4#
      • 1...Sh4
        • 2.Sf4#
      • 1...Se5
        • 2.Sf4#
      • 1...Se7
        • 2.Sf4#
      • 1...Sf8
        • 2.Sf4#
      • 1...Sh8
        • 2.Sf4#
      • 1...Kxg2!
    • 1.Qh7?
      • 1...Sf4+
        • 2.Sxf4#
      • 1...Sh4
        • 2.Sf4#
      • 1...Se5
        • 2.Sf4#
      • 1...Se7
        • 2.Sf4#
      • 1...Sf8
        • 2.Sf4#
      • 1...Sh8
        • 2.Sf4#
      • 1...Kxg2!
    • 1.Qh8?
      • 1...Sf4+
        • 2.Sxf4#
      • 1...Sxh8
        • 2.Sf4#
      • 1...Sh4
        • 2.Sf4#
      • 1...Se5
        • 2.Sf4#
      • 1...Se7
        • 2.Sf4#
      • 1...Sf8
        • 2.Sf4#
      • 1...Kxg2!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qf3#
      • 1...Sf4+
        • 2.Sxf4#
      • 1...Kxg2
        • 2.Qf1#
      • 1...Sxf8
        • 2.Sf4#
      • 1...Sh4
        • 2.Sf4#
      • 1...Se5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • S(b);CHECK,N_GUARD::S(B),XS(b)
    • S(b);N_GUARD::S(B)
  • Tries
    • Try
      • K(E);CHECK,S_FLIGHT,XS(b)
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(F);
      • Vars
        • S(b);CHECK,N_GUARD::S(B),XS(b)
        • S(b);N_GUARD::S(B)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(F);
      • Vars
        • S(b);CHECK,N_GUARD::S(B),XS(b)
        • S(b);N_GUARD::S(B)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • Q(F);
      • Vars
        • S(b);CHECK,N_GUARD::S(B),XS(b)
        • S(b);N_GUARD,XQ(F)::S(B)
        • S(b);N_GUARD::S(B)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • S(b);CHECK,N_GUARD::S(B),XS(b)
      • K(a);OGATEB,S_FLIGHT,XS(B)::QAB1(F)
      • S(b);N_GUARD,XQ(F)::S(B)
      • S(b);N_GUARD::S(B)
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