MESON Chess Problem Database

Problem Display
PID: 190052 (3N4/1r2B2p/1Qb2PPr/3PP1kp/4Pp1R/7K/6P1/6R1 w - - 0 1)

Merenyi, Lajos

Pesti Naplo, 1913

3N4/1r2B2p/1Qb2PPr/3PP1kp/4Pp1R/7K/6P1/6R1

#2

12 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg6
      • 2.Sf7#
    • 1...f3
      • 2.gxf3#
    • 1...hxg6
      • 2.Se6#
      • 2.Sf7#
  • Keys
    • 1.g4!
      • threat
        • 2.gxh5#
      • 1...hxg4+
        • 2.Rxg4#
      • 1...Kxg6
        • 2.gxh5#
      • 1...Rxg6
        • 2.Sf7#
        • 2.Rxh5#
      • 1...fxg4 ep
        • 2.Rxg3#
      • 1...Bd7
        • 2.f7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(e);SBLOCK,XP(J)::S(L)
    • P(a);OGATE::R(A)+P(B),XP(a)
  • Actual
    • P(B);
    • Threat
      • R(A)+P(B),XP(c)
    • Vars
      • P(c);CHECK,OGATE,P_PINR(E),P_SPINP(c),XP(B)::R1(A),XP(c)
      • K(b);P-FLIGHT,XP(J)::R(A)+P(B)DCHECK,XP(c)
      • P(a);EP,OGATEB,P_SPINP(a),XP(B)::R(A),XP(a)
      • B(d);P_PINP(B),S_CUTR(f)::B(K)+P(I)
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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).