MESON Chess Problem Database

Problem Display
PID: 155165 (8/5B2/1K6/3ppp2/2pk4/7Q/3P4/2Nn4 w - - 0 1)

Kaiser, Julius Adam

Philadelphia Times, 1887

8/5B2/1K6/3ppp2/2pk4/7Q/3P4/2Nn4

#2

5 + 6

14907 Good Companion Chess Problem Club 1916

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qe3#
    • 1...Sf2
      • 2.Qe3#
    • 1...Sc3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...c3
      • 2.Qd3#
    • 1...e4
      • 2.Qh8#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Se2#
      • 1...c3
        • 2.Qd3#
      • 1...e4
        • 2.Qxd5#
        • 2.Qf6#
      • 1...Sc3!
    • 1.Qf3?
      • threat
        • 2.Se2#
        • 2.Qxd5#
      • 1...c3
        • 2.Qxd5#
        • 2.Qd3#
      • 1...Sc3
        • 2.Qe3#
        • 2.dxc3#
      • 1...Se3
        • 2.Qxe3#
      • 1...e4!
    • 1.Qh4+?
      • 1...e4
        • 2.Qf6#
        • 2.Qh8#
      • 1...f4!
  • Keys
    • 1.Bg6!
      • 1...Ke4
        • 2.Qg4#
      • 1...c3
        • 2.Qd3#
      • 1...f4
        • 2.Se2#
      • 1...Sb2
        • 2.Qe3#
      • 1...Sf2
        • 2.Qe3#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...e4
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • P(b);N_GUARD::QAR1(C)
    • P(e);OGATEB,SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);XP(f)
      • Threat
        • S(A)
      • Vars
        • P(b);N_GUARD::QAR1(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::QAB1(C),XS(a)
      • Refutation
        • P(e);
    • Try
      • Q(C);CHECK
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • B(E);
    • Vars
      • K(c);P-FLIGHT,P_SPINP(f)::QAR2(C)
      • P(b);N_GUARD::QAR1(C)
      • P(f);::S(A)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • P(e);OGATEB,SBLOCK::QAB(C)
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