MESON Chess Problem Database

Problem Display
PID: 2370 (b7/B1Qpp3/6B1/3k4/1K6/7N/4n3/8 w - - 0 1)

Gold, Samuel

The Chess Monthly (Hoffer), 1879

b7/B1Qpp3/6B1/3k4/1K6/7N/4n3/8

#2

5 + 5

158 Brentano's Chess Monthly 1881
499 Chess Problems (Rayner) 1890

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Sf4#
    • 1...Sg1
      • 2.Sf4#
    • 1...Sc3
      • 2.Sf4#
    • 1...Sg3
      • 2.Sf4#
    • 1...Sd4
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...e5
      • 2.Qxd7#
    • 1...e6
      • 2.Qc5#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Be4#
        • 2.Qc5#
      • 1...Bc6
        • 2.Be4#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sg3
        • 2.Qc5#
      • 1...d6!
    • 1.Bb8?
      • threat
        • 2.Qc4#
        • 2.Qxd7#
      • 1...Kd4
        • 2.Qe5#
        • 2.Qc5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Bc6
        • 2.Qe5#
      • 1...d6!
    • 1.Qc4+?
      • 1...Kd6
        • 2.Bb8#
      • 1...Ke5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qxd7#
      • 1...Kxd4
        • 2.Qc5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Sxd4
        • 2.Sf4#
      • 1...Bc6
        • 2.Qe5#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD::S(A),XS(a)
    • P(d);SBLOCK::QAR2(E),XP(c)
    • P(d);SBLOCK::QAR1(E)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::B(C)
        • S(a);::QAR1(E)
      • Refutation
        • P(c);
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
        • B(e);SBLOCK::QAR1(E)
      • Refutation
        • P(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);P-FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAR2(E),XP(c)
    • Vars
      • K(b);P-FLIGHT,XB(D)::QAB1(E)
      • K(b);S_FLIGHT::QAR1(E)
      • S(a);N_GUARD,SBLOCK,XB(D)::S(A)
      • B(e);SBLOCK::QAR1(E)
      • P(c);SBLOCK::QAB1(E)
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