MESON Chess Problem Database

Problem Display
PID: 76958 (8/2Q2pK1/r1n5/3b1kB1/4R3/5N2/1p6/2b4B w - - 0 1)

Gallery, Terence C

The Tablet, 1948

(First published on Sat Mar 6 1948)

8/2Q2pK1/r1n5/3b1kB1/4R3/5N2/1p6/2b4B

#2

6 + 7

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Qxf4#
    • 1...Bxe4
      • 2.Qd7#
      • 2.Qc8#
    • 1...Sb4
      • 2.Qe5#
    • 1...Sd4
      • 2.Qe5#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sa7
      • 2.Qe5#
    • 1...Se7
      • 2.Qe5#
    • 1...Sb8
      • 2.Qe5#
    • 1...Sd8
      • 2.Qe5#
  • Tries
    • 1.Sd4+?
      • 1...Sxd4
        • 2.Qe5#
      • 1...Kxg5!
    • 1.Rf4+?
      • 1...Ke6
        • 2.Rf6#
      • 1...Bxf4!
    • 1.Qg3?
      • threat
        • 2.Sh4#
        • 2.Qg4#
      • 1...Bxg5
        • 2.Qg4#
      • 1...Bxe4
        • 2.Qh3#
      • 1...Se5
        • 2.Sd4#
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Bf4
        • 2.Sh4#
        • 2.Qxf4#
      • 1...Kxe4!
    • 1.Qxf7+?
      • 1...Kxe4
        • 2.Qg6#
      • 1...Bxf7!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qh7#
      • 1...Kxe4
        • 2.Qc2#
      • 1...Bxe4
        • 2.Qh3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb4
        • 2.Qe5#
      • 1...Sd4
        • 2.Qe5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Sa7
        • 2.Qe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sb8
        • 2.Qe5#
      • 1...Sd8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAR1(E),XB(a)
    • S(f);N_GUARD::QAR1(E)
    • S(f);N_GUARD::QAR1(E),XS(f)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • S(f);XS(B)::QAR1(E)
      • Refutation
        • K(d);P-FLIGHT,XB(D)
    • Try
      • R(C);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::R1(C)
      • Refutation
        • B(a);XR(C)
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XB(D)::QAB1(E)
        • B(c);SBLOCK,XR(C)::QAB(E)
      • Refutation
        • K(d);S_FLIGHT,XR(C)
    • Try
      • Q(E);CHECK,XP(g)
      • Vars
        • K(d);S_FLIGHT,XR(C)::QAB(E)
      • Refutation
        • B(c);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(C)::QAB(E)
      • B(c);SBLOCK,XR(C)::QAB(E)
      • B(a);N_GUARD::QAR1(E),XB(a)
      • S(f);N_GUARD::QAR1(E),XS(f)
      • S(f);N_GUARD::QAR1(E)
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