MESON Chess Problem Database

Problem Display
PID: 206747 (2bRn3/3r2Q1/2p2p2/B1k1pN2/P7/KB6/2N5/8 w - - 0 1)

Pikler, Robert

Nepszava, 1925

2bRn3/3r2Q1/2p2p2/B1k1pN2/P7/KB6/2N5/8

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qa7#
    • 1...Rd2
      • 2.Qa7#
    • 1...Rd3
      • 2.Qa7#
    • 1...Rd4
      • 2.Qa7#
    • 1...Rd5
      • 2.Qa7#
    • 1...Rd6
      • 2.Qa7#
    • 1...Ra7
      • 2.Qg1#
      • 2.Qxa7#
    • 1...Rb7
      • 2.Qg1#
    • 1...Rc7
      • 2.Qg1#
    • 1...Re7
      • 2.Qg1#
    • 1...Rf7
      • 2.Qg1#
    • 1...Rxd8
      • 2.Qa7#
    • 1...Sd6
      • 2.Qg1#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Se4#
      • 1...Kxd6
        • 2.Qf8#
      • 1...Rxd6
        • 2.Qa7#
      • 1...Sxd6
        • 2.Qg1#
      • 1...e4
        • 2.Sxe4#
      • 1...f5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • R(e);OGATE::QAB(G)
    • R(e);OGATE,P_PINB(C)::QAB(G)
    • R(e);N_GUARD::QAB(G)
    • R(e);OGATE,XR(H)::QAB(G)
    • S(g);S_CUTR(e)::QAB(G)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(a);OGATEB,P_SPINR(e),S_FLIGHT,XS(F)::QAB(G)
      • R(e);OGATE,XS(F)::QAB(G)
      • S(g);SBLOCK,XS(F)::QAB(G)
      • P(b);::S(F),XP(b)
      • P(d);OGATE::QAR2(G),XP(b)
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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).