MESON Chess Problem Database

Problem Display
PID: 151091 (2b1n3/8/3p1R2/2N1k1pP/Q7/2P1N3/4n1B1/K3B1b1 w - - 0 1)

Berry, Charles Vincent E

Hampstead and Highgate Express, 1896

(First published on Sat Sep 12 1896)

2b1n3/8/3p1R2/2N1k1pP/Q7/2P1N3/4n1B1/K3B1b1

#2

9 + 7

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bg4
      • 2.Sxg4#
    • 1...Bf5
      • 2.Rxf5#
    • 1...Ba6
      • 2.Sg4#
      • 2.Sd7#
      • 2.Rf5#
      • 2.Re6#
    • 1...Be6
      • 2.Rxe6#
    • 1...Bb7
      • 2.Sg4#
      • 2.Sd7#
      • 2.Rf5#
      • 2.Re6#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Sc1
      • 2.Qd4#
    • 1...Sxc3
      • 2.Bxc3#
    • 1...Sg3
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sf4
      • 2.Qd4#
  • Tries
    • 1.Bg3+?
      • 1...Sxg3
        • 2.Qd4#
      • 1...Sf4
        • 2.Qd4#
      • 1...Kxf6!
    • 1.Qxe8+?
      • 1...Be6
        • 2.Sg4#
        • 2.Sd7#
        • 2.Rf5#
        • 2.Qxe6#
      • 1...Kxf6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sg4#
        • 2.Rf5#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Bxe3
        • 2.Rf5#
      • 1...Bxd7
        • 2.Sxd7#
      • 1...Sxc3
        • 2.Bxc3#
      • 1...Sxf6
        • 2.Sd3#
      • 1...Sg3
        • 2.Sg4#
      • 1...Sd4
        • 2.Sg4#
      • 1...Sg7
        • 2.Sg4#
        • 2.Qxd6#
      • 1...g4
        • 2.Sxg4#
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(f);N_GUARD::S(E),XB(f)
    • B(f);N_GUARD::R1(I),XB(f)
    • B(f);N_GUARD::S(G),XB(f)
    • S(b);N_GUARD::QAB1(F)
    • S(b);OGATE,XP(D)::B(B),XS(b)
    • S(b);N_GUARD::QAB1(F),XS(b)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(b);XB(B)::QAB1(F)
        • S(b);P_SPINS(b)::QAB1(F)
      • Refutation
        • K(c);S_FLIGHT,XR(I)
    • Try
      • Q(F);CHECK,XS(g)
      • Refutation
        • K(c);S_FLIGHT,XR(I)
  • Actual
    • Q(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XR(I)::S(E)
      • B(a);XS(E)::R1(I)
      • B(f);XQ(F)::S(G),XB(f)
      • S(b);OGATE,XP(D)::B(B),XS(b)
      • S(g);SBLOCK,XR(I)::S(G)
      • S(b);::S(E)
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