MESON Chess Problem Database

Problem Display
PID: 152511 (2n5/pK1p4/8/6pr/N1pk4/1R3BQ1/8/8 w - - 0 1)

Berry, Charles Vincent E

Hampstead and Highgate Express, 1898

(First published on Sat Oct 8 1898)

2n5/pK1p4/8/6pr/N1pk4/1R3BQ1/8/8

#2

5 + 7

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6+
      • 2.Qxd6#
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Qc3#
        • 2.Qe3#
      • 1...Sd6+
        • 2.Qxd6#
      • 1...cxb3
        • 2.Qc3#
      • 1...c3
        • 2.Rb4#
        • 2.Qxc3#
      • 1...Rh3!
    • 1.Qe1?
      • threat
        • 2.Qc3#
        • 2.Qe3#
        • 2.Qe4#
      • 1...cxb3
        • 2.Qc3#
        • 2.Qe4#
      • 1...c3
        • 2.Qxc3#
        • 2.Qe4#
      • 1...Rh4
        • 2.Qc3#
        • 2.Qe3#
      • 1...d5
        • 2.Qc3#
        • 2.Qe3#
      • 1...Sd6+!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qc5#
      • 1...Sd6+
        • 2.Qxd6#
      • 1...cxb3
        • 2.Qc3#
      • 1...c3
        • 2.Qxc3#
      • 1...d6
        • 2.Qg7#
      • 1...g4
        • 2.Qf4#
      • 1...d5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(g);CHECK,N_GUARD::QAR2(C),XS(g)
    • P(c);N_GUARD::QAR2(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);CHECK,N_GUARD::QAR2(C),XS(g)
        • P(a);XR(A)::QAB1(C)
      • Refutation
        • R(d);
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • S(g);CHECK
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • S(g);CHECK,N_GUARD::QAR2(C),XS(g)
      • P(a);OGATE,XR(A)::QAB1(C)
      • P(a);OGATE::QAB1(C),XP(a)
      • P(f);OGATE::QAB(C)
      • P(c);N_GUARD::QAR2(C)
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