MESON Chess Problem Database

Problem Display
PID: 146205 (3R4/7B/4pp1Q/KN3r1P/4k3/R1n2p2/4b1P1/B7 w - - 0 1)

Apro, Laszlo

Western Morning News, 1931

(First published on Sat Oct 31 1931)

3R4/7B/4pp1Q/KN3r1P/4k3/R1n2p2/4b1P1/B7

#2

9 + 7

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe3#
    • 1...Sb1
      • 2.Re3#
      • 2.Qe3#
    • 1...Sa2
      • 2.Re3#
      • 2.Qe3#
    • 1...Sa4
      • 2.Re3#
      • 2.Qe3#
    • 1...Sxb5
      • 2.Re3#
      • 2.Qe3#
    • 1...Sd5
      • 2.Sd6#
    • 1...e5
      • 2.Sxc3#
  • Tries
    • 1.Rxc3?
      • threat
        • 2.Re3#
        • 2.Qe3#
      • 1...Ke5
        • 2.Re3#
        • 2.Rc4#
        • 2.Qe3#
      • 1...Bd3!
  • Keys
    • 1.g3!
      • threat
        • 2.Qf4#
      • 1...Ke5
        • 2.Qe3#
      • 1...Sd5
        • 2.Sd6#
      • 1...e5
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);N_PINS(E),N_SPINR(e),P-FLIGHT,P_SPINS(b)::QAR2(G)
    • S(b);N_PINS(E),SBLOCK::S(E)
    • P(f);N_PINS(E),SBLOCK::S(E),XS(b)
  • Tries
    • Try
      • R(C);XS(b)
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);
  • Actual
    • P(B);
    • Threat
      • QAR1(G)
    • Vars
      • K(d);N_PINS(E),N_SPINR(e),P-FLIGHT,P_SPINS(b)::QAR2(G)
      • S(b);N_PINS(E),SBLOCK::S(E)
      • P(f);N_PINS(E),SBLOCK::S(E),XS(b)
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).