MESON Chess Problem Database

Problem Display
PID: 271260 (1B1q4/2NPp3/5N1Q/2P1k2K/3p4/3P1n1B/7b/8 w - - 0 1)

Westbury, Eric Ernest

Brighton Society, 1902

1B1q4/2NPp3/5N1Q/2P1k2K/3p4/3P1n1B/7b/8

#2

9 + 6

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc7
      • 2.Bxc7#
    • 1...Qxd7
      • 2.Sxd7#
    • 1...Qe8+
      • 2.Scxe8#
    • 1...Qf8
      • 2.Sce8#
    • 1...Qg8
      • 2.Sce8#
    • 1...Qh8
      • 2.Sce8#
    • 1...Se1
      • 2.Qg5#
    • 1...Sg1
      • 2.Qg5#
    • 1...Sd2
      • 2.Qg5#
    • 1...Sg5
      • 2.Qxg5#
  • Tries
    • 1.Sb5+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Scd5+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Sa6+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Se6+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Sa8+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Sce8+?
      • 1...Qc7
        • 2.Bxc7#
      • 1...Qxb8!
    • 1.Qf4+?
      • 1...Kxf4
        • 2.Scd5#
      • 1...Bxf4!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sg4#
      • 1...Qe8+
        • 2.Scxe8#
      • 1...Kf4
        • 2.Scd5#
      • 1...Qxc7
        • 2.Bxc7#
      • 1...Qxd7
        • 2.Sxd7#
      • 1...Qxf8
        • 2.Sce8#
      • 1...exf6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(f);OGATE,P_SPINQ(f),XS(G)::B(I),XQ(f)
    • Q(f);XP(H)::S(E),XQ(f)
    • Q(f);CHECK,N_GUARD::B(I)+S(G),XQ(f)
    • Q(f);N_GUARD::B(I)+S(G)
    • Q(f);N_GUARD,P_PINQ(F)::B(I)+S(G)
    • S(b);N_GUARD::QAR2(F)
    • S(b);N_GUARD::QAR2(F),XS(b)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • S(G);CHECK
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(I),XQ(f)
      • Refutation
        • Q(f);XB(I)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT,XQ(F)::B(I)+S(G),DCHECK
      • Refutation
        • B(a);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • S(E)
    • Vars
      • Q(f);CHECK,N_GUARD::B(I)+S(G),XQ(f)
      • K(d);S_FLIGHT::B(I)+S(G),DCHECK
      • Q(f);OGATE,P_SPINQ(f),XS(G)::B(I),XQ(f)
      • Q(f);XP(H)::S(E),XQ(f)
      • Q(f);N_GUARD,XQ(F)::B(I)+S(G)
      • P(e);OGATE,XS(E)::QAB1(F)
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