MESON Chess Problem Database

Problem Display
PID: 190059 (1r6/4q2Q/B1r2P2/1P1b4/2P1Pp2/b1PkPR2/1B2R3/5K2 w - - 0 1)

Merenyi, Lajos

Pesti Naplo, 1913

1r6/4q2Q/B1r2P2/1P1b4/2P1Pp2/b1PkPR2/1B2R3/5K2

#2

12 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.exf4#
    • 1...Bxc4
      • 2.exf4#
  • Keys
    • 1.b6!
      • threat
        • 2.exf4#
      • 1...fxe3
        • 2.Rfxe3#
      • 1...Qc5
        • 2.exd5#
      • 1...Bc5
        • 2.cxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(e);SBLOCK,XP(G)::R(F)+P(E),XP(c)
    • B(d);SBLOCK,XP(G)::R(F)+P(E),XP(c)
  • Actual
    • P(I);
    • Threat
      • R(F)+P(E),XP(c)
    • Vars
      • P(c);OGATE,P_SPINP(c),XP(E)::R1(F),XP(c)
      • Q(f);N_GUARD::QAB(L)+P(H),XB(d)
      • B(a);S_CUTR(e)::B(J)+P(G),XB(d)
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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).