MESON Chess Problem Database

Problem Display
PID: 204495 (2N3b1/rp5p/P4Rp1/r3k1P1/2pNP1p1/p3Kp1q/5P2/8 w - - 0 1)

Sonnenfeld, Pal

Nepszava, 1925

2N3b1/rp5p/P4Rp1/r3k1P1/2pNP1p1/p3Kp1q/5P2/8

#2

8 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Rxe6#
    • 1...g3
      • 2.Sxf3#
    • 1...bxa6
      • 2.Sc6#
    • 1...b5
      • 2.Sc6#
    • 1...b6
      • 2.Sc6#
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sd7#
      • 1...bxa6
        • 2.Sc6#
      • 1...Be6
        • 2.Rxe6#
      • 1...Rd5
        • 2.Sxc4#
      • 1...g3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(l);N_GUARD::R1(G),XB(l)
    • P(e);N_GUARD,S_CUTQ(c)::S(C),XP(b)
    • P(j);N_GUARD,XP(F)::S(C)
    • P(j);N_GUARD::S(C)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • P(j);N_GUARD,XP(F)::S(C)
      • B(l);N_GUARD::R1(G),XB(l)
      • R(f);S_CUTB(l)::S(H),XP(d)
      • P(e);N_GUARD,S_CUTQ(c)::S(C),XP(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).