MESON Chess Problem Database

Problem Display
PID: 60952 (3KQ3/8/4NB2/1nPk4/4N1P1/1P1p4/4n3/8 w - - 0 1)

McIntyre, Donald Glenoe

Cape Times, 1925

3KQ3/8/4NB2/1nPk4/4N1P1/1P1p4/4n3/8

#2

8 + 4

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Sf4#
    • 1...Sg1
      • 2.Sf4#
    • 1...Sec3
      • 2.Sf4#
    • 1...Sg3
      • 2.Sf4#
    • 1...Sed4
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...Sa3
      • 2.Sc7#
    • 1...Sbc3
      • 2.Sc7#
    • 1...Sbd4
      • 2.Sc7#
    • 1...Sd6
      • 2.Sc7#
    • 1...Sa7
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Qa8#
      • 1...Sed4
        • 2.Sf4#
      • 1...Sbd4
        • 2.Sc7#
      • 1...Sd6
        • 2.Sc7#
      • 1...Sa7
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Kxe4!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Qc6#
      • 1...Sexd4
        • 2.Sf4#
      • 1...Sbxd4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • S(a);N_GUARD::S(E)
    • S(a);N_GUARD::S(E),XS(a)
    • S(c);N_GUARD::S(E)
    • S(c);N_GUARD::S(E),XS(c)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • QAB(H)
      • Vars
        • S(a);N_GUARD::S(E)
        • S(c);N_GUARD::S(E)
        • S(c);N_GUARD::S(E),XS(c)
      • Refutation
        • K(d);S_FLIGHT,XS(B)
  • Actual
    • B(F);
    • Threat
      • S(B)
    • Vars
      • K(d);S_FLIGHT,XS(B)::QAB(H)
      • S(a);N_GUARD,SBLOCK,XB(F)::S(E)
      • S(c);N_GUARD,SBLOCK,XB(F)::S(E)
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