MESON Chess Problem Database

Problem Display
PID: 260895 (8/2K1P2B/3B4/N1p5/3k1N2/p5R1/q1P1Pn2/2r5 w - - 0 1)

Gheran, Nicoale

Neue Zurcher Zeitung, 1985

8/2K1P2B/3B4/N1p5/3k1N2/p5R1/q1P1Pn2/2r5

#2

9 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Sc6#
    • 1...Ra1
      • 2.c3#
    • 1...Rb1
      • 2.c3#
    • 1...Rd1
      • 2.c3#
    • 1...Re1
      • 2.c3#
    • 1...Rf1
      • 2.c3#
    • 1...Rg1
      • 2.c3#
    • 1...Rh1
      • 2.c3#
    • 1...Sd1
      • 2.Rd3#
    • 1...Sh1
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...Sh3
      • 2.Rd3#
    • 1...Se4
      • 2.Rd3#
    • 1...Sg4
      • 2.Rd3#
    • 1...c4
      • 2.Sc6#
  • Tries
    • 1.e4?
      • threat
        • 2.Se2#
      • 1...Qxc2
        • 2.Se6#
      • 1...Sxe4
        • 2.Rd3#
      • 1...Qc4
        • 2.Sc6#
      • 1...Re1
        • 2.c3#
      • 1...Rxc2!
  • Keys
    • 1.c4!
      • threat
        • 2.Se6#
      • 1...Qxc4
        • 2.Sc6#
      • 1...Qxe2
        • 2.Sxe2#
      • 1...Rxc4
        • 2.Sc6#
      • 1...Sd3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • Q(b);SBLOCK::S(E)
    • R(a);N_GUARD::P(A)
    • S(c);N_GUARD::R1(C)
    • S(c);N_GUARD::R1(C),XS(c)
    • P(f);SBLOCK::S(E)
  • Tries
    • Try
      • P(B);
      • Threat
        • S(D)
      • Vars
        • Q(b);N_GUARD,XP(A)::S(D)
        • S(c);N_GUARD,XP(B)::R1(C)
        • Q(b);SBLOCK::S(E)
        • R(a);N_GUARD::P(A)
      • Refutation
        • R(a);XP(A)
  • Actual
    • P(A);
    • Threat
      • S(D)
    • Vars
      • Q(b);SBLOCK,XP(A)::S(E)
      • Q(b);XP(B)::S(D),XQ(b)
      • R(a);SBLOCK,XP(A)::S(E)
      • S(c);N_GUARD::R1(C),XS(c)
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).