MESON Chess Problem Database

Problem Display
PID: 158828 (8/4p3/1pRr1p1R/1p1kN3/6P1/p3P3/K1Q2N2/2B5 w - - 0 1)

Andrew, Frederick William

Oldham Standard, 1896

(First published on Sat Sep 19 1896)

8/4p3/1pRr1p1R/1p1kN3/6P1/p3P3/K1Q2N2/2B5

#2

9 + 7

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qe4#
      • 2.Qf5#
    • 1...Re6
      • 2.Qe4#
    • 1...Rd7
      • 2.Qe4#
    • 1...Rd8
      • 2.Qe4#
    • 1...fxe5
      • 2.Qe4#
    • 1...e6
      • 2.Qe4#
  • Tries
    • 1.Bb2?
      • threat
        • 2.Qb3#
      • 1...Ke6
        • 2.Qb3#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...fxe5
        • 2.Qe4#
        • 2.e4#
      • 1...axb2!
    • 1.Rc5+?
      • 1...Ke6
        • 2.Qf5#
      • 1...bxc5!
    • 1.Qd3+?
      • 1...Kxe5
        • 2.Qe4#
        • 2.Qf5#
      • 1...Ke6!
    • 1.Qc4+?
      • 1...Kxe5
        • 2.Qe4#
      • 1...bxc4!
  • Keys
    • 1.Sfd3!
      • 1...Ke4
        • 2.Qg2#
      • 1...Ke6
        • 2.Qb3#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...fxe5
        • 2.Sb4#
      • 1...Re6
        • 2.Qg2#
      • 1...Rd7
        • 2.Qg2#
      • 1...Rd8
        • 2.Qg2#
      • 1...b4
        • 2.Qc4#
      • 1...f5
        • 2.Qg2#
      • 1...e6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(e);::QAB1(C)
    • P(f);XS(G)::QAB1(C)
    • P(g);SBLOCK::QAB1(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB(C)
      • Vars
        • K(c);P_SPINP(f),P_SPINR(e),S_FLIGHT::QAB(C)
        • R(e);OGATE,XR(H)::QAB1(C),XR(e)
      • Refutation
        • P(a);XB(A)
    • Try
      • R(H);CHECK
      • Vars
        • K(c);P_SPINP(f),S_FLIGHT::QAB1(C)
      • Refutation
        • P(d);XR(H)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);P_SPINP(f),P_SPINR(e),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(G)::QAR1(C)
      • Refutation
        • P(b);XQ(C)
  • Actual
    • S(D);
    • Vars
      • K(c);S_FLIGHT::QAB(C)
      • K(c);P_SPINP(f),P_SPINR(e),S_FLIGHT::QAB(C)
      • R(e);OGATE,XR(H)::QAB1(C),XR(e)
      • P(f);SBLOCK,XS(G)::S(D)
      • R(e);::QAB(C)
      • P(b);N_GUARD::QAB1(C)
      • P(f);::QAB(C)
      • P(g);SBLOCK::QAB(C)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).